Posts Tagged ‘Breastfeeding’

Dental Related Information

Thursday, October 29th, 2009

My short list of advice for maintaining your dental health is:  Brush and floss after every snack and meal.  Water-pick also whenever you can.  Get your teeth checked and cleaned every 6 months.  Get that tool to identify plaque at home (see below).  Don’t suck on citrus fruits.  Don’t chew on ice.  Don’t hold metal nails in your mouth when hammering.  Try to avoid Epstein-Barr.  Don’t drink energy drinks, sports drinks, fitness water, and cola.  For now, drink fluoridated water.  Use xylitol and take vitamin K2.  If you want to use an electric toothbrush, get the oscillating kind.  Get your teeth sealed.   Get amalgam fillings for now, but keep an eye on new materials as they come along.   Drink lemonade or ice tea through a straw, and rinse immediately afterwards, then brush as soon as possible.

Defenders of amalgam fillings point out the following facts:  A person with 7 amalgam fillings (the average) absorbs about 1 microgram of mercury daily.  You get about 6 micrograms a day from food, water, and air. You would need to get around 45 micrograms a day to have the slightest risk of the being able to detect any blood changes signaling the beginnings of mercury’s effects.  A study of Portuguese children showed no evidence of neurological problems from dental fillings.  The findings showed no detectable loss of intelligence, memory, coordination, concentration, nerve conduction, or kidney function during the 5-7 years the children were followed. (Dental Tooth Fillings Containing Mercury Don’t Affect Children’s Brain Development, Study SuggestsStudies Evaluate Health Effects of Dental Amalgam Fillings in Children)  (But, for a contrary view see: Root Canals, Extractions and Mercury Amalgam Fillings)

As far as filling baby teeth, according to a recent literature review there isn’t enough evidence to be able to say which filling materials is best among the various types used. (No Clear Winner Among Fillings For Childhood Cavities, Types of Fillings, and Dental Filling Options – American Dental Association)

Also, dental mercury accounts for less than a quarter of a percent of all environmental mercury pollution.  Currently available composite fillings cause more secondary cavities, sometimes slowly release bisphenol A, may contribute to plaque formation, don’t last nearly as long, cost more, and are often not covered by insurance. (Amalgam Fillings Are Safe, But Skeptics Still Claim Controversy, Researcher Says)  

However, people are still concerned about amalgam, and in the quest to improve dental materials scientists have developed a replacement for it that is made from bile acids.  These are acids that are produced by your liver and stored in your gallbladder.  They claim it is hard, durable, and strongly resistant to cracking.  (Stronger Material For Filling Dental Cavities Has Ingredients From Human Body, and Scientists develop dental filling using bile acids)  And researchers have found that braided polyethylene fibers can be added to non-amalgam composite fillings that will increase their toughness by up to 433%. (Fibers Used In Bullet-proof Vests Quadruple Toughness Of Dental Composites)

Dentists have been using dental sealants with success for years, (Dental Sealants) although some people have questioned their safety. (Dental sealant safety reconsidered – new research fails to find environmental hormone risk)  Sealants work by preventing decay from starting in the nooks and crannies of your teeth.  

Following similar reasoning, researchers have adopted technology from the semiconductor industry that enable them to polish teeth to the nanoscale smooth level.  The idea is that they become too smooth for bacteria to cling to, and then they can be removed easily through brushing.  (New Tooth Cavity Protection: Nanoparticles Make Surface Too Slippery For Bacteria To Adhere)

It turns out that manual toothbrushes work just about as well as electric ones at reducing plaque and gum disease.  Researchers looked at 40 years of research, including 29 high-quality trials, and found that the only electric toothbrushes better than manual ones (by 11% with plaque and by 6% with gingivitis in three-month trial) were those where the head of the toothbrush rotates back and forth in an oscillating motion.  (Manual toothbrushes work just as well)  

I will mention several topics here I have blogged about before.  Xylitol is a naturally occurring sugar in many fruits and vegetables, prevents cavities, and has a very low glycemic index. (Food from Finland, and Xylitol - Lost Wanderer)  Vitamin K2 plays a vital role in the development of facial bones, as well as providing possible protection against cavities.  It normally enters the diet through eating the meat of grass fed – not grain fed - animals.  (Vitamin K2 – Lost Wanderer, On the Trail of the Elusive X-Factor: A Sixty-Two-Year-Old Mystery Finally Solved By Chris Masterjohn)  Periogen is a product that is purported to dissolve tartar. (Dissolve Tartar with Periogen – Lost Wanderer)

I haven’t investigated the issue of fluoridation enough to have an informed opinion.  All I can say is that one side of this debate is either delusional or lying.  Here are some sites that discuss it:  (Fluoride Action NetworkWater fluoridation - Wikipedia, Safety – Fluoride Information Network, Community Water Fluoridation – CDC, Is Fluoride Safe? By Charles Wilson, DDS, and 150+ Fluoride Facts, horror stories and cover-ups by Floyd Maxwell, BASc) 

Scientists have developed a device that is used to identify plaque build-up, and has been designed for use in the home.  It is the size of a toothbrush, and has a blue light that is shone in the mouth.  The viewer looks through yellow glasses with a red filter, and they see any plaque as a red glow.  (New Tool To Improve Oral Hygiene Developed

Researchers have developed a test that tells the likelihood a child will get cavities.  The test works by looking at the relative proportions in saliva of different types of sugar chains, known as oligosaccharides. (USC Dental Researchers Develop First Test For Predicting Cavities In Children)

Researchers have found that they can repair damaged tooth enamel, in the early stages of decay, by soaking teeth in a solution of calcium, phosphate and fluoride, the three substances that make up tooth enamel.  They found that for the mixture to work the ingredients must be combined with the protein casein phosphopeptide at a pH of 5.5.  It’s applied using a custom fit mouth tray, along with a saliva-proof sealing gel.  They expect it to be available for patients in 5 years.  (New treatment could banish dental fillings)

Dental erosion is when the enamel is stripped from your teeth, causing them to become brittle and painful.  It’s caused by acids from such things as soft drinks, sports drinks, herbal teas, some fruit juices, beer salts, Lucas candy, aspirin, acid reflux, and bulimia.  (More U.S. Teeth Susceptible To Silent Enamel-eating Syndrome)  In one study it turned out that, from worst to least damaging drinks, the order was: lemonade, energy drinks, sports drinks, fitness water, ice tea, and cola.  (New Study Indicates That Popular Sports Beverages Cause More Irreversible Damage To Teeth Than Soda)  I would have thought lemonade and other citrus products were healthy, but apparently not totally, and until more is known people are recommending drinking lemonade through a straw, and rinsing or brushing right after drinking it. (Does consuming too much lemon juice cause harm to tooth enamel?) 

I ran across this video (Cure Tooth Pain) that claims you can stop tooth pain with a mixture of mashed garlic, lemon juice, and salt.  One critic was naturally concerned that the lemon acid would destroy the tooth enamel, and recommended oil of cloves instead.  Another person recommended a hot salt water rinse. 

Some dentists are especially concerned about Mountain Dew.  They argue that this drink is worse than others because of its especially high levels of caffeine and sugar.  They have dubbed the blown out mouths they see, “Mountain Dew Mouth.” (Watch what you Dew! Dentists sounding the alarm about heavy soft-drink consumption among teens

It turns out that alkaline substances used in industry can also damage tooth enamel. (Exposure To Alkaline Substances Can Result In Damaged Teeth)  And you are never supposed to hold tacks or nails in your mouth when you are working. 

More than three dozen studies show that dental cavities are not caused by breastfeeding.  It turns out that infant’s cavities are actually caused by a recently discovered type of bacteria, which is called Early Childhood Caries (ECC).  Furthermore, breastfed children are actually less likely to develop this disease than bottle fed children.  ECC correlates with (but is not necessarily caused or caused by): pregnancy complications, traumatic birth, cesarean sections, kidney disease, maternal diabetes, and viral or bacterial infection. For the neonate, risk factors seem to be premature birth, sugary foods, Rh incompatibility, a salty diet, allergies, iron deficiency, gastroenteritis, pacifier use, malnutrition, prenatal exposure to lead, infectious diseases, and chronic diarrhea. (Big Bad Cavities: Breastfeeding Is Not the Cause by Lisa Reagan of The Natural Child Project)

There seems to be no strong research that supports routinely removing disease-free impacted wisdom teeth.  The reasons for this are the difficulty of following a population over 10 to 20 years, and the small number of adults with impacted wisdom teeth, since they are routinely removed.  Of course, this does not mean they shouldn’t be removed, we just don’t know.  (No Wisdom In Routinely Pulling Wisdom Teeth, Study Says)    

Chewing on ice is bad for your teeth because you are subjecting your teeth to a thermal shock when the enamel contracts.  Heat has the opposite thermal shock effect, so drinking hot drinks isn’t ideal either.  And if you have fillings the effect is even worse, since the dental materials will contract or expand differently than the tooth.  It can make for painful teeth, and in the worst case the tooth can fracture. 

If your teeth are sensitive to heat or cold this could also be because you might have a small fracture in a tooth.  Your dentist can test for this possibility.  (Is chewing ICE bad for your teeth?)  

People who have a general sensory sensitivity with their hearing, sight, taste, smell, and touch also very often have sensitive teeth.  Such people avoid loud noises, bright lights, perfumes, itchy clothing, and hot and cold foods. (Wear Sunglasses? You May Have Sensitive Teeth)   

It turns out that a desire to chew ice is one symptom of iron deficiency.  Seith Roberts suggests that one of the few crunchy things in the hunter gatherer days were bones, bone marrow has lots of iron, so this desire evolved because it was adaptive. (Pagophagia and the Umami Hypothesis)  

For those who are hoping for a perfect solution to many dental problems, Japanese scientists have been able to grow a new tooth in a mouse.  They did this by taking two types of cells, mesenchymal and epithelial, separately growing large numbers of them, putting them together into a drop of collagen, growing a tiny tooth, and then inserting it into the mouse’s mouth.  The transplant grew into a perfect new tooth.  (Toothless mice can eat againResearchers have also been able to regrow mouse teeth from tooth buds extracted from mouse embryos, although in this case the teeth were simpler and with fewer facets.  (Teeth regrown for the first time) Inventors claim that they have developed a device that massages gums with pulsed ultrasonic waves that can grow a toot from a tooth root.  They also say that it can also be used to stimulate bone growth.  (Smile! A new Canadian tool can re-grow teeth say inventors, and How to regrow or repair bad teeth naturally

They’ve found mutant chickens with teeth, alligator teeth that is.  The discovery led researchers to speculate that chickens might still have most of the genetic machinery necessary to grow teeth, and they have found that they can induce teeth to grow in normal chickens by changing the expression of certain molecules.  The hope is that this research could one day lead to re-growing teeth in people.  (Mutant Chicken Grows Alligatorlike Teeth)

Since bone loss often causes tooth loss, it seems relevant to mention that scientists have developed an injectable toothpaste-like solution that hardens in the body, and provides a porous biodegradable scaffolding for the formation of new bone.  It works by using a combination of stem cells and growth factors.  (Injectable artificial bone developed)

A research team has developed software that can detect osteoporosis using routine dental x-rays.  The method does this by measuring the thickness of part of the lower jaw.  (Dentists Could Detect Osteoporosis, Automatically)

It’s probably best to avoid getting the Epstein-Barr virus since it has been found to be associated with inflammatory diseases of the mouth. (Epstein-Barr Virus Associated With Inflammatory Diseases Of The Mouth)  

Another oral problem people often have is Halitosis, or bad breath.  (Bad Breath (Halitosis) – ADA)  It can be caused by certain foods, poor dental hygiene, dry mouth, and tobacco products.  It can also be caused by various medical conditions, such as an infection in the respiratory tract, chronic sinusitis, tonsil stones, trimethylaminuria, postnasal drip, chronic bronchitis, diabetes, gastrointestinal disturbance, or a liver or kidney ailment.  If you are on a low carb diet, or fasting, you could develop ketone breath, which happens when ketones build up in your body and are released in the mouth. 

One common piece of advice for managing bad breath is to use a tongue scraper, since bacteria on the back of the tongue is often the source of the problem. (Using a tongue scraper or brush can cure bad breath.)  Other advice is to use a water pick, drink more water, chew gum that is cinnamon flavored and contains xylitol, and to floss. 

Scientists have found that the more oral bacteria you have the higher the risk you have of having a heart attack.  (The More Oral Bacteria, The Higher The Risk Of Heart Attack, Study Shows)  

Besides heart disease there are a number of other conditions associated with poor oral health.  (It’s important to remember that the nature of the relationship in each case might be only correlational, or it might be causal in one direction or the other.  Or it could even be reciprocal.  So, the relationship of each comorbid condition to oral bacteria must be considered separately, although in many of these cases the nature of the relationship is reasonably clear.)   These conditions include Alzheimer’s, premature birth, diabetes, HIV/AIDS, osteoporosis, Sjogren’s syndrome, certain cancers, eating disorders, syphilis, gonorrhea and substance abuse.  (Oral health: A window to your overall health, Diabetes and Oral Health Problems, Dental Health May Influence Alzheimer’s, Gum Disease, Heart Disease, Premature Births, and Vitamin K2 - Lost Wanderer)   

One form of chronic fatigue syndrome (CFS) might be triggered by a rare reaction to dental metals.  In one Swedish study, 76% of CFS patients who tested positive for metal allergy, on the MELISA blood test, and then had their metal fillings replaced, achieved some or full health improvement.  (Further arguing for some sort of allergic like connection with CFS, it might also be caused by gluten intolerance, celiac disease, and chronic sinusitis.) (Encyclopedia – Chronic fatigue syndrome, and Chronic Fatigue Syndrome or Chronic Mercury Poisoning?)  

From GutBuddies – Safe dental anesthesia for helminth hosts, there is a new type of dental anesthesia available for drug sensitive patients that doesn’t involve any needles or medications, because it works by using cold to numb your teeth.  The gumEase G100 is filled with a chilled saline solution, and fitted around your teeth to cool them to -7 degrees C.  Several of the devices used in sequence will work for almost all normal procedures, its 100% pain relief lasts for up to twenty minutes, and it can also be used post-operatively at home.  The device is FDA approved, currently available for dentists to try, and is probably less expensive than regular anesthesia.  (I wonder about any problems this product might create for patients who have cold sensitive teeth.)  

GumEase is also being tested for relief from tension and migraine headaches (Migraine Headaches - Lost Wanderer), and patients who have tried it report it works for these conditions also.  (Study to Determine Efficacy of gumEase cryoanesthesia Mouthpiece in Treating Migraine and Tension-type Headache Pain without Drugs to Begin)

Your can purchase the gumEase G100 from CryoDevices, or Olympic Dental and Medical Devices.  For dental application it’s about $110 for a box of 10, and for migraines a 3 pack costs about $36.  In the UK you can contact George Harrell at gharrell@cryodevices.com.

Researchers have developed a dental device that will automatically deliver a patient’s drugs.  It fits inside two fake molars, and contains the drug, a release valve, sensors, and actuators.  (Molar medication)  

A new medical device, called PediSedate, has been developed to deliver nitrous oxide for dental or medical anesthesia.  It is a toy-like headset that connects to a game such as Nintendo or a CD player, and while the child is playing or listening to music s/he gradually drifts off to sleep.  (PediSedate)

A 2004 study claims that women who have dental x-rays during pregnancy are three times more likely to have a low birth weight baby.  (Dental X-rays Of Pregnant Women Associated With Low-weight Babies)  However, a number of researchers are very skeptical of this result.  (Dental experts fault study linking X-rays to term low birth weight, and Dental x-rays and low birth weight J. Radiol. Prot. 24 (2004) 321–325)

Researchers are testing a natural hormone called relaxin that might make it possible to straighten teeth more quickly, with less pain, and which would prevent relapse.  (Teeth On The Move by Kate Melville) 

Just for fun, Grand Illusions sells strips of plastic that talk to you when you hold one end in your teeth and run your thumb nail down the tape. (Talking Tapes – Grand Illusions)

 

Pregnancy & Child Related Information

Wednesday, September 2nd, 2009

I’ve previously blogged about how geophagy (eating clay) has been practiced for thousands of years to prevent morning sickness.  Pregnant women become hyper-sensitive to environmental toxins, and morning sickness helps protect the developing fetus from deformities.  It now turns out that all that misery could pay off for yet another reason, because women who have a greater degree of morning sickness might have more intelligent babies.  (Morning Sickness may be Sign of a Bright Baby)  The researchers involved theorize that the hormones which cause it might also protect a baby’s brain.  

S. Boyde Eaton, et al., have written (Dietary Intake of Long-Chain Polyunsaturated Fatty Acids during the Paleolithic, p. 20) that our brains are somewhat smaller than our Paleolithic ancestor’s brains, and that one reason might be our modern dietary deficiency in DHA omega-3 fats.  Along with DHA, it seems that, for rats, enriching the environment of the mother long before she becomes pregnant can affect the learning of her offspring.  Researchers theorize that the mother’s learning affects the nature of the hormones she will release during her later pregnancies.  This will affect epigenetic chemical markers on her offspring’s genes, which will in turn affect these genes’ expression during brain development, finally causing changes in the brains of the pups.  (Can Experiences be Passed on to Offspring? and A Mother’s Experience can Alter her Offspring’s Memory Performance)  Meanwhile, stress during pregnancy very likely harms a baby’s brain, and might increase the risk of schizophrenia.  Researchers think the mechanism is likely related to the stress hormone cortisol crossing the placenta.  (Stress Harms Baby’s Brain While in Womb)  Another possible factor that could increase the risk of schizophrenia is having the flue during pregnancy. (Flue During Pregnancy may Increase Risk of Schizophrenia in Certain Offspring

There are some indications that vitamin D deficiency is a risk factor for preeclampsia.  (Vitamin D for the Prevention of Preeclampsia?  A Hypothesis.)  This is a condition that occurs in pregnancy, which causes the patient to develop hypertension, along with protein in their urine.  It’s widespread, affecting about 10% of pregnancies, and is currently only treatable through termination.  It is most common in first pregnancies, and some researchers think that it’s the result of the mother’s immune system inappropriately attacking fetal cells.  The theory is that they are being triggered by the foreign antigens that were introduced by the father.  So, besides vitamin D supplementation, another recommendation is to delay pregnancy for a while after beginning sexual relations, on the theory that this allows the mother’s immune system to become acquainted with the father’s sperm’s antigens.  (Introduction and Overview of Evolutionary Medicine (p.24) by Wenda R. Trevathan, et al.) 

Low levels of vitamin D are also associated with chronic pain and muscle weakness, which suggests this might be a possible factor in a painful difficult birth. (Lack of Vitamin D Linked to Pain, and Recent Developments in Vitamin D Deficiency and Muscle Weakness Among Elderly People)  Stephan Guyenet, of Whole Health Source, reports that pelvic inlet depth index was larger in our hunter-gatherer ancestors (97.7% versus 92.1% today), and that this might be still another reason why childbirth is difficult for modern people.  (Longevity & Health in Ancient Paleolithic vs. Neolithic peoples)  Because vitamin K2 deficiency narrows the bone structure of the face, it seems natural to speculate that this could also be part of the reason for our lower pelvic inlet depth index today. 

Difficult births lead to caesareans, and, using MRIs, researchers have been able to show that women who have had c-sections had lower response levels to their baby’s cries.  This might indicate weaker bonding with their infants.  Researchers suggested that this possibly occurred because these women missed out on the hormonal priming from oxytosin that takes place during a vaginal delivery.  (C-sections may Weaken Bonding with Baby)  

Home birthing is as safe as in the hospital.  Two studies, one from the Netherlands and the other from Canada, found no evidence of greater death rates among home births, for low risk pregnancies, in either the mothers or their babies.  In the Netherlands study nearly 1/3 of those who started at home did end up being transferred to the hospital, but the risk was no greater than those mothers who had started out in the hospital.  Researchers said that a good midwife was the key. (Home Births “as Safe as Hospital,” and Home Birth with Midwife as Safe as Hospital Birth, Study) (See also: The Natural Family Site, and Why Have Natural Childbirth?) 

Also, as I previously blogged, some people claim that placenta eating can prevent postpartum depression.  (Placenta Benefits.info)

The natural childrearing people argue against circumcision on a number of grounds, including that they believe there doesn’t seem to be much of a reason for it.  (Put Down that Knife!  11 Reasons not to Circumcise, Circumcision – Wikipedia, and Circumcision Rates)

Pacifiers reduce the risk of sudden infant death syndrome (SIDS) by about 90%.  (Pacifier Greatly Reduces Risk of Sudden Infant Death)  They reduce the risk regardless whether or not the infant sleeps on his/her stomach, in soft bedding, or his/her mother smoked.  Problems such as thumb sucking, tooth development, and difficulties breast feeding can be avoided by waiting a few weeks before using one, and stopping when they become toddlers.  (However, there apparently is a trade-off, because, according to Gabe Mirkin, studies from Finland found that children who use pacifiers are more likely to have recurrent ear infections.)  Other people also recommend co-sleeping as protective.  (See below)  One more way of lowering the risk of SIDS is by using a fan to circulate the air in the room.  This reduces the risk by 72%. (Fan Use Linked to Lower Rate of Sudden Infant Death)  (See also: Sudden infant death syndrome – Wikipedia)

Coming to very similar conclusions as The Continuum Concept by Jean Liedloff, here is an article on Evolutionary Psychology: Natural Parenting - Back to Basics in Infant Care by Regine A. Schon.     Matt Metzgar wrote up this outline.  (I inserted some additional materials and links):  

Evolutionary Function of Crying (For a second opinion see: Should Infants be Allowed to Cry Themselves to Sleep?)

  • Crying signals genuine needs of the infant
  • Crying should be immediately attended to by the mother or caregiver
  • Crying takes significant physical effort on the part of the infant
  • The immediate response to crying should be to restore physical contact between the caregiver and the infant

Infants as Carried Young

  • Hunter-gatherer women carried their infants in slings close to the body
  • This increased beneficial skin-to-skin contact between the mother and the infant
  • The common leg positions of babies suggest they are adapted for carrying

Cosleeping  (Regarding co-sleeping: Mr. Metzgar cites this article (which argues in favor of it), Why Babies Should Never Sleep Alone: A Review of the Co-sleeping Controversy in Relation to SIDS, Bedsharing, and Breastfeeding, and this site, Mother-Baby Behavioral Sleep Laboratory.  See also: The Benefits of Co-Sleeping)       

  • Cosleeping for the infant and mother has been the universal norm throughout most of human history
  • Bedsharing is the environment to which the vulnerable newborn is best adapted
  • Cosleeping may reduce some forms of SIDS

Breastfeeding (See also: Breastfeeding Linked to Smarter Babies (Again)  This article points out that, as well as being correlated with 5.9 points of higher IQ, breastfeeding also apparently reduces the chances of a mother later developing rheumatoid arthritis, and lessons the child’s odds of later developing cardiovascular disease.  This article, Big Bad Cavities: Breastfeeding is not the Cause, states that more than three dozen studies have shown no link between breastfeeding and the disease of Early Childhood Carries (ECC).  Medical News Today reports that the concentration of volatile organic compound toxins in breast milk are much lower than indoor air, and also much lower than the safe levels for drinking water. (Concentrations of Certain Toxins in Breast Milk are Low, Study Finds))

  • No alternative to breast milk existed before the transition to a farming economy
  • Therefore, infants have been breastfed for 99% of all human existence
  • Artificial substitutes have been unable to replicate the complex structure of breast milk
  • There is mounting evidence about the many benefits of breastfeeding on child development

Extrogestation

  • Human infants are born in an exceptionally immature state
  • The conditions for the early part of infant life should attempt to mimic that of the womb
  • This includes close contact with the mother’s body in a tight, warm embrace
  • Heartbeat sounds are comforting to an infant; women tend to hold infants on the left side of their body, close to their hearts
  • Rocking an infant provides a calming effect since it mimics the movement stimulation the infant received from the mother’s normal daily movements
  • Swaddling replicates the feeling of the womb and has been proven effective in calming infants

Toilet Training  (What is Infant Potty Training, Benefits of Infant Potty Training, Infant Potty Training, The Controversy over Infant Potty Training, Shaping self-initiated toileting in infants)  (There are also major health benefits of squatting instead of sitting for defecation.  (The Squat Toilet)  The repeated refrain is to do things the way nature intended.)

  • Infants were historically toilet trained much earlier than in modern times
  • Natural toilet training depends on reading an infant’s signals and responding appropriately
  • Children trained in this way complete toilet training anywhere from 6 months to 2 years

Matt also reviewed this book, The 90-Minute Sleep Baby Program.  As he says, the basic idea behind the book is that humans have a 90 minute cycle of activity and rest.  This means that when a baby wakes up their next nap should be 90 minutes later.  (Older children might string several of these together.)  22 out of 27 reviews on Amazon gave the book 5 stars.  Matt speculates that many children today are sleep deprived, which is obviously troublesome.  It turns out that sleep deprived children have twice the risk of becoming obese.  (Sleep Deprivation Doubles the Risk of Obesity in Both Children and Adults

Matt also very favorably reviewed, The Happiest Baby on the Block.  The author argues that babies need a uterus like environment, and he suggests a number of tactics for mimicking it.  These include swaddling, shh sounds, side/stomach position, swinging, and sucking.  He claims that his program will calm almost all babies.  

Matt also pointed out Baby Sign Language, which allows the infant to communicate his/her needs at a much younger age.  I think it’s very surprising that this wasn’t stumbled upon thousands of years ago, yet it is a remarkably simple and wonderful advancement.  It apparently isn’t some sort of silly fad, but brings real benefits, which I think all parents would appreciate, including greatly reduced frustration on everyone’s part, and increased language skills. 

Matt has blogged about Baby Led Weaning, which takes the position that children shouldn’t be fed pureed foods (Pureed Food “isn’t Natural for Babies’), but instead weaned directly onto solid foods.  The argument behind the idea is that this is much closer to the way our ancestors would have done it.  (It should be said that hunter-gatherers often did pre-chew the child’s food to help him/her along.)   

I have blogged before about going barefoot, and children who go barefoot as long as possible have about half the rate of flat footedness later on.  Having said that, being flat footed doesn’t appear to be as big a problem as people once thought.  There appears to be no relationship between the height of children’s arches and their ability to perform athletically, and it very well also might not affect their injury rates. (Flat Feet don’t Impair Kid’s Motor Skills)  

A study from Sweden concluded that risk factors for snoring as an adult include respiratory and ear infections as a child, being raised in a large family, and being exposed to a dog at home as a newborn. (Have A Dog? Your Child is More Likely to Snore as an Adult) 

Children who suffer from cyclic vomiting might actually be suffering from migraines. (Gabe Mirkin: Cyclic Vomiting

Low levels of carbon monoxide, 25 parts per million, might cause oxidative stress on the cochlear nerve, and permanently damage the hearing of children.  Such carbon monoxide can come from tobacco, cooking, and heating appliances.  (How Chronic Exposure to Tiny Levels of Carbon Monoxide Damages Hearing in Young Ears)  However, the main cause of hearing loss in modern world is loud noise.  The blast from a single gunshot, or the loud prolonged noise of a rock concert, can result in permanent hearing loss and tinnitus (ringing in the ears).

Many cases of bed-wetting might be caused by breathing problems.  63% of bed-wetting children stopped when they had surgery to remove their adenoids or tonsils, and the use of a plate to widen the palate of bed-wetters with narrow palates ended the condition in 70% of cases. (Breathing Troubles the Cause of Bed-wetting?)   Gabe Mirkin discusses another theory, that it’s the lack of antidiuretic hormone that causes the problem.  This hormone causes the kidneys to shut down at night.  (Bedwetting

The BBC reports that a 10 minute test for dyslexia has been developed that can be used starting at age 3 & 1/2.  (Early Warning Test for Dyslexia)  The test has children repeat sentences and re-tell a story while looking at how the child builds sounds up into words.  For parents of children who seem a little different there is the book, Quirky Kids: Understanding and Your Child Who Doesn’t Fit In- When To Worry And When Not To Worry.  One reviewer thought the book would be most helpful to parents who are just beginning to suspect something is unusual, but don’t know what might be the problem.  It also debunks a number of folk myths out there, and reportedly has a good section on the pros and cons of various medications.  Science Daily has this article, Specific Behaviors Seen in Infants Can Predict Autism, New Research Shows, which reports that Canadian researchers have discovered that there are behavioral signs that can accurately predict autism in children as young as one year old.  (See also: The Vitamin D Theory of Autism)

According to a study by the University of Rochester Medical Center, there is no detectable risk to children from the mercury in the seafood their mother’s ate, up to 12 servings a week.  The study period was before birth to age 9, and the children were tested for 21 different cognitive, neurological and behavioral functions.  These abilities included concentration, attention, problem-solving, and motor skills. (No Detectable Risk From Mercury in Seafood, Study Shows

Tonsils serve to trap germs and train the white blood cells when children are young, but as they grow older their importance lessons.  Doctors generally seem to say that their removal can be justified if they obstruct the throat, or the child suffers from frequent throat infections.  (Dr. Alan Green on Tonsil Removal)    

Not surprisingly, mother’s who talk about people’s mental states, such as beliefs, wants, and intentions, have children with a greater understanding of social interactions.  (This obviously does not establish causation, because mothers with greater social skills might pass on genes that also dispose their children to have those same skills.)  Researchers note that these greater social skills do not necessarily imply that these children will be better behaved. (The Secret to Building Children’s Social Skills)   The Incredible Years is an organization which hosts a variety of programs for teaching parents, teachers, and children social skills.  It turns out the ability of a mother to read her child’s emotions is more important than her social status for the child’s development. (Why Mind-Reading Mums are Best

Not surprisingly, children are happier who have a sense of spirituality, that is meaning in life, and they think that their lives have value.  Good interpersonal relationships also helped, and accounted for 27% of the happiness variation between children.  Being more sociable was also a happiness predictor.  (Spirituality is key to kids’ happiness

Researchers want to know why some children are resilient in spite of bad upbringings.  They have found that resilient children tend to share a number of characteristics:  They have at least one supportive person in their life, have a positive outlook, a pleasant altruistic personality, they are eager to learn, and have problem-solving skills.  They take responsibility for their mistakes, and move on.  They also have an interest or friend they can turn to when they need to.  (This description to me sounds somewhat like the characteristics of lucky people.)  (Raising Resilient Children Foundation, their book, Psychosocial Characteristics of Resilient Children, and The Resilient Child)

Sara Bennett and Nancy Kalish, in The Case Against Homework: How Homework is Hurting our Children and What We Can Do About It, argue that there’s almost no evidence that homework helps kid’s academic success.  They point out that the amount of homework has skyrocketed in recent years, which is contributing to an epidemic of obesity, and robs kids of the time they need to be kids.  They also give advice on how to separate useful assignments from the time wasters.  Richard Louv, author of, Last Child in the Woods, argues that children suffer from a nature-deficit disorder. 

For preventing myopia, besides a low glycemic diet/ Paleolithic Diet, it seems that playing outside is also protective.  Researchers in Australia have found that kids who spend a lot of time outside have lower myopia rates. (Kid’s eyes need the great outdoors)   

I have previously blogged about The Freedom to Learn site.  Peter Gray has a series of articles which argue that play is essential for healthy human life, and maintaining a band’s existence.  John Holt takes a similar approach in his books, How Children Learn and How Children Fail, that children are natural learners, and the process of forcing them to learn in school changes their personalities for the worse.  David Elkind’s book, The Power of Play: How Spontaneous Imaginative Activities Lead to Happier Healthier Children, argues that play is changing from teaching children social roles, vocations, and academic skills to teaching them brand loyalty, fashion consciousness, and group think.  Matt Metzgar reviewed Susan Linn’s book, The Case for Make-Believe: Saving Play in a Commercialized World, which argues that many of today’s toys are scripted, and that they don’t foster the development of social and critical skills.  Matt also discussed this article, Sucker-Me Elmo, which questions the merits of electronic toys.  Meanwhile, New York City is developing the next generation playground, which is designed to foster the imagination of kids. (New York developing a next-generation playground)  Here is a site that features educational products for children We Make Stories, which allows the child to write and print their own stories.

It turns out that pedophiles don’t randomly search through MySpace sites searching for kids.  Instead they go for those kids in chat rooms who are presenting themselves in sexually suggestive ways. (Welcome to Crimes Against Children Research Center, and Salon – Stop Worrying about your Children)  This information is from the same woman who runs Free Range Kids, which I have written about before.  Boing Boing favorably reviewed this book, If Your Kid Eats this Book Everything will Still be Okay: How to Know if Your Child’s Injury or Illness is Really an Emergency by Lara Zibners.  Zibners is an emergency room pediatrician who says that 75% of late night emergency room visits are unnecessary, and this book is a guide to all the things you don’t have to worry about.

On the other hand, there are real risks out there, and Dreambaby makes safety products to help reduce these.  Science Daily has a story, Homes Need More Protection Against Falls, which points out that falls are the second leading cause of death among children, and that this is because many homes have inadequate protection against them.  Such homes are lacking such commonsense things as banisters, grab bars, anti-slip bathtub strips, and child safety gates.  Eco Child’s Play has a similar outlook, and advocates ”Green Parenting for Non-Toxic Healthy Homes.”  This site focuses on alternative medicine, and sources of toxins from such things as plastics, medicines, and cleaners.  (See, for example: 12 Warnings for Parents and Kids in 2008, 10 Ways to Avoid Toxic Plastic - BPA (Bisphenol A), Synthetic Estrogens and Your Child, Smart Medicine for a Healthier Child, 9 Best Articles for Natural and Home Remedies on Echo Child’s Play in 2008, Another Reason We Can’t Trust the FDA, Melamine…, New Study Suggests Link Between Hairspray Exposure and Genital Birth Defect, How Safe is Your Child’s Playground?, Balloons Cause More Deaths than Marbles, and Finding Safer Products for our Children)  They also discuss products to make parent’s lives easier. (Postpartum Bamboo Belly Wrap Helps Shrink Your Belly and Prevent Stretch Marks, and Why Tilty is a Better Sippy

In recent years people have been taking bullying far more seriously, and researchers have found that, at least with rats, bullying might scar the brain for life.  When rats were bullied new brain nerve cells would form, but then die, and they acted depressed.  (Bullying May Scar Brain for Life

Psychologist Randall Flanery has this advice for being a great dad:  Run a benevolent dictatorship.  Be friendly, but not a friend.  Admit when you’re wrong.  Remain firmly flexible.  Stick around even when they don’t want you to.  Ask questions.  Don’t take it personally if they express unhappiness.  Know that parenting is 24/7, and then some.  Keep in mind that who you are is more important than what you buy them.  Laugh.  Of course, there is also the book, Supernanny: How to Get the Best from your Children by Jo Frost.  For the sport parent, there is Who’s Game is it Anyway: A Guide to Helping Your Child Get the Most From Sports, Organized by Age and Stage by Amy Baltzell.