Posts Tagged ‘Hunter Gatherer’

Stressed Fruit, Nuts, and Vegetables are Better for You

Thursday, September 24th, 2009

The more stress a plant has been under the more flavornoids it tends to produce.  These differences are not insignificant, since researchers have found that the amount of flavornoids, within the same variety of different samples of sweet cherries, can vary by a factor of at least 3.  So fruits, nuts, and vegetables that have been attacked by insects and subject to bad weather conditions are very likely healthier for us.  In the end, farming methods that mimic natural conditions are probably the best.  This is, of course, just another example of one of the benefits a hunter-gatherer lifestyle once gave us.

(Stressed fruit may be better for you by Jennifer Viegas)

The Paleolithic Diet

Monday, August 10th, 2009

Here is a site which summarizes why the Paleolithic Diet is so incredibly healthy.  I have snipped from the article the (no doubt incomplete) list of the cornucopia of diseases it protects against.

“What is the Paleolithic diet? 

…obesity, coronary heart disease, type 2 diabetes, hypertension and dyslipidemia (elevated serum triacylglycerols; small dense low-density lipoprotein cholesterol; and reduced high-density lipoprotein cholesterol)….myopia, acne, gout, polycystic ovary syndrome, epithelial cell cancers (breast, colon, prostrate), male vertex balding, skin tags, and acanthosis nigricans…osteoporosis, age related muscle wasting, calcium kidney stones, hypertension, exercise induced asthma, as well as the progression of age and disease related chronic renal insufficiency….hypertension, stroke, kidney stones, osteoporosis, gastrointestinal tract cancers, asthma, exercise induced asthma, insomnia, airsickness, high altitude sickness and Meniere’s syndrome….constipation, bowel cancer, appendicitis, haemorrhoids, deep vein thrombosis, varicose veins, diverticulitis, hiatial hernia and gastroesophageal reflux.”

Sleep Related Topics

Tuesday, July 28th, 2009

Here is some information I’ve gathered on sleep related topics:

Recent research into non-Western cultures shows that people don’t usually sleep as modern Westerners do, “Slumber’s Unexplored Landscape,” a fact that could explain a few things.  For example, parents often complain when their teenager stays up all night and then sleeps during the day, but this backward shift in sleep timing might have evolutionary roots.  In the ancient days this variability in sleep schedules meant that someone in the ancient clan was always awake in case of danger.  Carol Worthman and Melissa Melby in, “Toward a Comparative Developmental Ecology of Human Sleep” (table 6.2), point out a number of potentially significant differences between Western and non-Western (more natural) sleeping patterns: non-Western are more social, noisier, not climate controlled, have fire present, are dynamic, and have more permeable boundaries.

While NASA might be very far removed from the hunter gatherer days, research seems to have led them back to the benefits of following another ancient sleeping pattern, the nap.  Because astronauts often can’t stick to an 8 hour sleep schedule, NASA did a lot of research on napping back in the 1990s, finding that 20 minute naps were optimal for helping working memory, “NASA Naps.” (also see: “How long do you sleep at night?” Tom’s comment at the end)  After realizing they could increase productivity some companies began allowing  naps and even providing nap rooms, “Believers in midday doze are stripping away stigma of siestas.”

In addition to breaking up your day with a nap, the most natural pattern of sleep at night might be two periods of sleep with an in-between wakeful period, sometimes called the “watching period.”  This might have put ancient people in better touch with their dream world:

“In addition to the daytime nap, a nighttime short period of wakefulness, about 5 to 20 minutes in the middle of the sleeping period is also an evolutionary adaptation.  Many people have this and consider it an intrusion on normal sleep but it is as natural and normal and healthy as a midday nap.” – James O’Keefe

One fellow, Daniel Web, decided he was tired of having a sore back, so he custom designed his own mattress and bet, “The Ultimate Sturdy Bed:”

“I have never been satisfied with my bed, so I spent a lot of time figuring out what would make the ultimate bed and building it. My wife and I both have some lower back pain, and the bed you sleep on can make a huge difference in how much that affects you in the morning.

Summary: I sleep on a two-layer foam bed. The top layer is two inches of “Sensus” 5 pound high-density viscoelastic from Foamex, and the base layer is three inches of “Q-41″ polyurethane foam from Carpenter Foam. I built my own platform bed frame and have free plans and pictures of it. I highly recommend the Tempur-pedic original pillows.”

Given how unhealthy our modern lifestyle is, it isn’t surprising that this report says that many Americans are so sleepy they aren’t having much sex, “Americans Too Sleepy for Sex, Poll Finds.”

To avoid morning grogginess, there is now a clock that monitors your brain waves and wakes you up during the lightest phase of sleep, “The clock that wakes you when you are ready.”

Looking for insights even further outside recent Western experience, researchers are now spending considerable time studying the nature of animal’s sleep, “Down for the Count.” 

Finally, for anyone who wants resources on sleep in general, “The National Sleep Foundation” site is a good starting place, and the NIH has this publication, “Your Guide to Healthy Sleep.”

The Umami Hypothesis

Monday, July 27th, 2009

Seth Roberts has proposed an interesting hypothesis, that humans like complex tastes (umami) because we evolved to like the taste of bacteria in food.  He believes that bacteria from natural pickling is harmless, and actually improves our immune function.  As reported in Conditioning Research, Roberts points out that explorer Vihjalmur Stefansson reported that Eskimos ate lots of bacteria fermented fish, which he also grew to enjoy.  Supporting this theory, Conditioning Research also tells of University of Michigan paleontologist, Dan Fisher, who butchered a draft horse and cached the meat in a stock pond.  The lactobacilli in the water pickled the meat, which it emitted a slightly sour odor that put off scavengers when it floated to the surface.  Fisher cut and ate the meat from February until midsummer to prove its safety, showing how hunter gatherers might have once stored their large animal kills.  As I blogged in an earlier post, fermented foods also are known to be good sources of vitamin K2.

Has the Garden of Eden been located at last? by Dora Jane Hamblin

Sunday, July 26th, 2009

Hamblin’s article discusses the theory by archaeologist Juris Zarins that the Garden of Eden is located under the northern part of the Persian Gulf:

(snip)…”The whole Garden of Eden story, however, when finally written, could be seen to represent the point of view of the hunter gatherers,” Zarins reasons. “It was the result of tension between the two groups, the collision of two ways of life. Adam and Eve were heirs to natural bounty. They had everything they needed. But they sinned and were expelled. How did they sin? By challenging God’s very omnipotence. In so doing they represented the agriculturists, the upstarts who insisted on taking matters into their own hands, relying upon their knowledge and their own skills rather than on His bounty.

There were no journalists around to record the tension, no historians. But the event did not go unnoticed. It became a part of collective memory and at long last it was written down, highly condensed, in Genesis. It was very brief, but brevity doesn’t mean lack of significance.”

How did it happen that an advanced people would perpetuate a myth making their own ancestors the sinners? It may be that the Ubaidians, who are known to have sailed down the east coast of Arabia and colonized there, ran into descendants of foragers displaced from a drowning Eden, from them heard the awful story of the loss of paradise and repeated it until it became their own legend. Or it may be that, responding to the increasing pressures and stresses of a society growing in complexity, they found comfort in a fantasy of the good old days, when life had been sweeter, simpler, more idyllic. However, it was a tale firmly established in Ubaidian mythology, then adopted and recorded by the Sumerians.” …(snip)

“Thus the Garden of Eden, on the geographical evidence, must have been somewhere at the head of the Gulf at a time when all four rivers joined and flowed through an area that was then above the level of the Gulf. The wording in Genesis that Eden’s river came into four heads” was dealt with by Biblical scholar Ephraim Speiser some years ago: the passage, he said, refers to the four rivers upstream of their confluence into the one river watering the Garden. This is a strange perspective, but understandable if one reflects that the description is of a folk memory, written millennia after the events encapsulated, by men who had never been within leagues of the territory.”(snip)

“The name Eve does not appear in Sumerian but there is a most intriguing link—the account of Eve’s having been fashioned from Adam’s rib in the Garden story. Why a rib? Well, in a famous Sumerian poem translated and analyzed by scholar Samuel Noah Kramer, there is an account of how Enki the water god angered the Mother Goddess Ninhursag by eating eight magical plants that she had created. The Mother Goddess put the curse of death on Enki and disappeared, presumably so she couldn’t change her mind and relent. Later, however, when Enki became very ill and eight of his “organs” failed, Ninhursag was enticed back. She summoned eight healing deities, one for each ailing organ. Now the Sumerian word for “rib” is “ti.,” but the same word also means “to make live.” So the healing deity who worked on Enki’s rib was called “Nin-ti” and, in a nice play on words, became both the “lady of the rib” and the “lady who makes live.” This Sumerian pun didn’t translate into Hebrew, in which the words for “rib” and “to make live” are quite different. But the rib itself went into the Biblical account and as “Eve” came to symbolize the “mother of all living.”

This and other ties with Sumerian myth are very clear, and Zarins finds it telling that although the Hebrews had close associations with Egypt, their earliest spiritual roots were in Mesopotamia. “Abraham journeyed to Egypt, Joseph journeyed to Egypt, the whole Exodus story is concerned with Egypt, but there is nothing whatever Egyptian about the early chapters of Genesis,” he points out. “All these early accounts are linked to Mesopotamia. Abraham indeed is said to have come from Ur, at the time near the Gulf, and the writers of Genesis wanted to link up with that history. So they drew from the literary sources of the greatest civilization that had existed, and that was in Mesopotamia. In so doing they turned Eden into the Garden, Adam into a man, and a compacted history of things that occurred millennia before was pressed into a few chapters.”

Adapted cold shower as a potential treatment for depression

Sunday, July 26th, 2009

Here is a study from Pubmed which found that a 2-3 minute cold shower of 20 degrees C (preceded by a 5 minute adaptation to reduce shock) performed once or twice daily, over several weeks to months was effective at relieving depression.  It also had an analgesic effect, and didn’t have noticeable side effects or create addiction.  The study was small, statistically insignificant, and needs to be replicated.  They speculate that several mechanisms might be involved, such as activation of the sympathetic nervous system, the release of noradrenaline, and the level of peripheral nervous system signals to the brain.  The idea is that our ancestors would have been subject to these sorts of environmental stressors, and the lack of them in the modern world might help explain some cases of improper brain functioning.

“Original Wisdom: Stories of an Ancient Way of Knowing” by Robert Wolff

Sunday, July 26th, 2009

Here is several snips from a review of Original Wisdom by Thom Hartmann:

“After I grew to know the Sng’oi, the People, and when I knew they accepted me, I apologized for having spoken of them as slaves before I knew what they called themselves. …(snip)

“This time, again, one person answered. He – a rather adventuresome young man, I was told later – spoke slowly, simply, for my benefit perhaps. “No,” he said, “we do not mind when others call us Sakai. We look at the people down below – they have to get up at a certain time in the morning, they have to pay for everything with money, which they have to earn doing things for other people. They are constantly told what they can and cannot do.’ He paused, and then added, ‘No, we do not mind when they call us slaves.”…(snip)

“Similarly, many of the Europeans wanted to become “savages” and live among the Indians:”

“Over the next hundred years, as more and more Whites encountered Native Americans, the incidence of Whites joining Indian tribes dramatically increased. Derisively termed “White Indians” by the colonists, thousands of European immigrants to the Americas simply walked away from the emerging American society to join various Indian tribes. Ethnohistorian James Axtell wrote that these early settlers joined the Indians because “they found Indian life to possess a strong sense of community, abundant love, and uncommon integrity�” Axtell quoted two White Indians who wrote to the people they�d left behind that they�d found, “the most perfect freedom, the ease of living, the absence of those cares and corroding solicitudes which so often prevail with us.”

In 1747, Reverend Cadwallader Colden wrote of the growing exodus of Whites for Indian life: “No Arguments, no Intreaties, nor Tears of their Friends and relations, could persuade many of them to leave their new Indian Friends and Acquaintance; several of them that were by the Caressings of their Relations persuaded to come Home, in a little Time grew tired of our Manner of living, and ran away again to the Indians, and ended their Days with them.”

While most people in the modern world think of contemporary tribal people as hungry to join our civilized world, wolff found the Sng�oi just as happy with their own democratic culture as Colden found Native Americans in the 1700s.

Similarly, Colden wrote: “�Indian Children have been carefully educated among the English, cloathed and taught, yet, I think, there is not one Instance, that any of these, after they had Liberty to go among their own People, and were come to Age, would remain with the English, but returned to their own Nations, and became as fond of the Indian Manner as those that knew nothing of a civilized Manner of living.”

Not being fettered to eight or more hours of work a day to enrich some person or corporation at the top of an economic food chain, people in democratic indigenous cultures spend much of their time interacting with their children. James Bricknell, who was captured by the Delaware in the early 1800s and lived among them for several years before returning to his family, wrote in 1842: “The Delawares are the best people to train up children I ever was with� Their leisure hours are, in a great measure, spent in training up their children to observe what they believe to be right� They certainly follow what they are taught to believe right more closely, and I might say more honestly, in general, than we Christians� I know I am influenced to good, even at this day, more from what I learned among them, than what I learned among people of my own color.”

The Worst Mistake In The History Of The Human Race by Jared Diamond

Saturday, July 25th, 2009

In this article Jared Diamond points out what a disaster the transition from a hunter gatherer lifestyle to an agricultural one was for most of humanity.  When that transition occurred about 10,000 years ago skeletal remains show that people shrank in stature.   People’s diet was much less varied, and enamel defects give good evidence of malnutrition.  Life expectancy went down, and class and gender inequality came about.

Another problem, which Diamond doesn’t discuss, is that now “work” became necessary.  Animals tend to evolve to enjoy the things they have to normally do in their natural environment to stay alive.  This is because those animals which enjoy what they are doing will tend to do it better, and they will on average win the genetic competition.  In this regard people are no different since they are, of course, animals.  On average men especially liked hunting, and women especially liked gathering.  And, as a reminder of our hunter gatherer past, most people appreciate being out in nature.  After the transition people had to really “work” for a living, that is they had to spend much of their time doing such things as plowing fields, tasks they weren’t naturally wired to enjoy. 

It is said that play is the work of the child.  Some people I know have nostalgia for childhood as a wonderful time of such endless “work.”   As they grew up these people gradually transitioned into adulthood, where they have to work at jobs they often hate.  I think this sort of nostalgia is an artifact of civilization, and I’d predict that if you talked to a group of hunter gatherers they wouldn’t have such a depressing perspective, because the “work” they are doing as adults is just as enjoyable to them as play is to a child.  If this idea is correct, then in a sense many people know somewhat what a hunter gatherer life was like.  If you were raised in a setting that allowed you to play outside in nature, and had an otherwise normal childhood, all you have to do is to remember what it was like to be out of second grade for the summer playing with your friends in the woods.  I don’t want to paint a too idealistic picture because not everything was always going well for hunter gatherers, but then it isn’t always going well in childhood either.

Before the Fall Evidence for a Golden Age By Steve Taylor

Friday, July 24th, 2009

I don’t necessarily agree with all of Steve Taylor’s points in his article, but these are spot on as far as I’m concerned:

…”Many of the world’s cultures have myths that refer to an earlier time when life was much easier, and human beings were less
materialistic and lived in harmony with nature and each other. In ancient Greece and Rome this was known as the Golden Age; in China it
was the Age of Perfect Virtue, in India it was the Krita Yuga (Perfect Age); while the Judeo-Christian tradition has the story of
the garden of Eden. These myths tell us that, either as a result of a long degeneration or a sudden and dramatic “Fall,” something “went
wrong.” Life became much more difficult and full of suffering, and human nature became more corrupt. In Taoist terms, whereas the
earliest human beings followed the Way of Heaven and were a part of the natural harmony of the Universe, later human beings became
separated from the Tao, and became selfish and calculating.  Many of these myths make clear references to the hunter-gatherer way
of life – for example, the Greek historian Hesiod states that during the Golden Age “the fruitful earth bore [human beings] abundant fruit
without stint,” while the early Indian text the Vaya Purana states that early human beings “frequented the mountains and seas, and did
not dwell in houses” (i.e. they lived a non-sedentary way of life).  The garden of Eden story suggests this too. Originally Adam and Eve
ate the fruit from the tree of knowledge, until they were forced to leave the garden and forced to “work hard and sweat to make the soil
produce anything.” It appears that, at least in part, these myths are a kind of “folk memory” of the pre-agricultural way of life. The
agricultural peoples who worked harder and longer, had shorter life spans and suffered from a lot more health problems must have looked
at the old hunter-gatherer way of life as a kind of paradise.”…

Why Dirt is Good: 5 Ways to Make Germs Your Friends by Mary Ruebush

Friday, July 24th, 2009

Author Dr. Mary Ruebush is an expert in medical genetics, microbiology, and immunology.   On a radio call in show online she discusses the hygiene hypothesis, which is the theory that we need germs in order to be healthy.  With one caller she discussed the fact that researchers are experimenting with helminthic (worm) therapy.  

“the most delightful sights for a parent should be a young child covered in dirt from an active afternoon of outdoor play.” Her thesis, reiterated throughout, is that obsessive cleanliness is counterproductive: a “young, naïve immune system” needs exposure to germs “to build the ability to produce the right response quickly.” Arguing that evolution has conditioned us to coexist with the microscopic threats around us-a human body typically harbors “some 90 trillion microbes”