Friday, May 21, 2010

Atheism is a recent Neolithic invention: Ancestral humans were spiritual people

For the sake of simplicity, this post treats “atheism” as synonymous with “non-spiritualism”. Technically, one can be spiritual and not believe in any deity or supernatural being, although this is not very common. This post argues that atheism is a recent Neolithic invention; an invention that is poorly aligned with our Paleolithic ancestry.

Our Paleolithic ancestors were likely very spiritual people; at least those belonging to the Homo sapiens species. Earlier ancestors, such as the Australopithecines, may have lacked enough intelligence to be spiritual. Interestingly, often atheism is associated with high intelligence and a deep understanding of science. Many well-known, and brilliant, evolution researchers are atheists (e.g., Richard Dawkins).

Well, when we look at our ancestors, spirituality seems to have emerged as a result of increased intelligence.

Spirituality can be seen in cave paintings, such as the one below, from the Chauvet Cave in southern France. The Chauvet Cave is believed to have the earliest known cave paintings, dating back to about 30 to 40 thousand years ago. The painting below is on the cover of the book Dawn of art: The Chauvet Cave. (See the full reference for this publication and others at the end of this post.)


The most widely accepted theory of the origin of cave paintings is that they were used in shamanic or religious rituals. By and large, they were not used to convey information (e.g., as maps); and they are often found deep in caves, in areas that are almost inaccessible, ruling out a “decorative” artistic purpose. As De La Croix and colleagues (1991) note:
Researchers have evidence that the hunters in the caves, perhaps in a frenzy stimulated by magical rites and dances, treated the painted animals as if they were alive. Not only was the quarry often painted as pierced by arrows, but hunters actually may have thrown spears at the images, as sharp gouges in the side of the bison at Niaux suggest.
Niaux is another cave in southern France. Like the Chauvet Cave, it is full of prehistoric paintings. Even though those paintings are believed to be more recent, dating back to the end of the Paleolithic, they follow the same patterns seen almost everywhere in prehistoric art. The patterns point at a life that gravitates around spiritual rituals.

Isolated hunter-gatherers also provide a glimpse at our spiritual Paleolithic past. No isolated hunter-gatherer group has ever been found in which atheism was the predominant belief among its members. In fact, the life of most isolated hunter-gatherer groups that have been studied appears to have revolved around religious rituals. In many of these groups, shamans held a very high social status, and strongly influenced group decisions.

Finally, there is solid empirical evidence from human genetics and the study of modern human groups that: (a) “religiosity” may be coded into our genes, to a larger extent in some individuals than in others; and (b) those who are spiritual, particularly those who belong to a spiritual or religious group, have generally better health and experience lower levels of depression and stress (which likely influence health) than those who do not.

There was once an ape that became smart. It invented weapons, which greatly multiplied the potential for death and destruction of the ape’s natural propensity toward violence; violence often motivated by different religious and cultural beliefs held by different groups. It also invented delicious foods rich in refined carbohydrates and sugars, which slowly poisoned the ape’s body.

Could the recent invention of atheism have been just as unhealthy?

Surely religion has been at the source of conflicts that have caused much death and destruction. But is religion, or spirituality, really to be blamed? Many other factors can lead to a great deal of death and destruction, sometimes directly, other times indirectly – e.g., poverty and illiteracy.

References:

Brown, D.E. (1991). Human universals. New York, NY: McGraw-Hill.

Chauvet, J.M., Deschamps, E.B., & Hillaire, C. (1996). Dawn of art: The Chauvet Cave. New York, NY: Harry N. Abrams.

De La Croix, H., Tansey, R.G., & Kirkpatrick, D. (1991). Gardner’s art through the ages: Ancient, medieval, and non-European art. Philadelphia, PA: Harcourt Brace.

Gombrich, E.H. (2006). The story of art. London, England: Pheidon Press.

Murdock, G.P. (1958). Outline of world cultures. New Haven, CN: Human Relations Area Files Press.

Thursday, May 20, 2010

Cheese’s vitamin K2 content, pasteurization, and beneficial enzymes: Comments by Jack C.

The text below is all from commenter Jack C.’s notes on this post summarizing research on cheese. My additions are within “[ ]”. While the comments are there under the previous post for everyone to see, I thought that they should be in a separate post. Among other things, they provide an explanation for the findings summarized in the previous post.

***

During [the] cheese fermentation process the vitamin K2 (menaquinone) content of cheese is increased more than ten-fold. Vitamin K2 is anti-carcinogenic, reduces calcification of soft tissue (like arteries) and reduces bone fracture risk. So vitamin K2 in aged cheese provides major health benefits that are not present in the control nutrients. [Jack is referring to the control nutrients used in the study summarized in the previous post.]

Another apparent benefit of aged cheese is the breakdown of the peptide BCM7 (beta-casomorphin 7) which is present in the casein milk of most cows (a1 milk) in the U.S. BCM7 is a powerful oxidant and is highly atherogenic. (From "Devil in the Milk" by Keith Woodford.)

[P]asteurization is not necessary, for during the aging process, the production of lactic acid results in a drop in pH which destroys pathogenic bacteria but does not harm beneficial bacteria! Many benefits result.

In making aged cheese, the temperature [should] be kept to no more than 102 degrees F, the same temperature that the milk comes out of the cow. The many beneficial enzymes in milk (8 actually) therefore are not harmed and provide many health benefits. Lactoferrin, for example, destroys pathogenic bacteria by binding to iron (most pathogenic bacteria are iron loving) and also helps in absorption of iron. Lipase helps break down fats and reduces the load on the pancreas which produces lipase.

By federal law, milk that has not been pasteurized cannot be shipped across state lines [in the U.S.], but raw milk cheese can be legally shipped provided that it has been aged at least sixty days. Thus, in backward states like Alabama where I live that do not permit the sale of raw milk, you can get the same beneficial enzymes (well, almost) from aged cheese as from raw milk. And as you pointed out, cheese that is shrink-wrapped will keep a long time and can be easily shipped.

I buy most of my raw milk cheese from a small dairy in Elberta, Alabama, Sweet Home Farm, which produces a great variety of organic raw milk cheese from Guernsey cows that are fed nothing but grass. No grain, no antibiotics or growth hormones. There is nothing comparable in the way of milk that is available legally. The so called “organic” milk sold in stores is all ultra-pasteurized. Yuck.

Raw milk cheese is readily shipped. Sweet Home Farm does not ship cheese, so I have to go get it, 70 miles round trip. On occasion I buy raw milk cheese from Next Generation Dairy, a small coop in Minn. which promises that they do not raise the temperature of the cheese to more than 102 degrees F during manufacture. The cheese is modestly priced and can be shipped inexpensively.

Jack

Tuesday, May 18, 2010

Cheese consumption, visceral fat, and adiponectin levels

Several bacteria feed on lactose, the sugar found in milk, producing cheese for us as a byproduct of their feeding. This is why traditionally made cheese can be eaten by those who are lactose intolerant. Cheese consumption predates written history. This of course does not refer to processed cheese, frequently sold under the name “American cheese”. Technically speaking, processed cheese is not “real” cheese.

One reasonably reliable way of differentiating between traditional and processed cheese varieties is to look for holes. Cheese-making bacteria produce a gas, carbon dioxide, which leaves holes in cheese. There are exceptions though, and sometimes the holes are very small, giving the impression of no holes. Another good way is to look at the label and the price; usually processed cheese is labeled as such, and is cheaper than traditionally made cheese.

Cheese does not normally spoil; it ages. When vacuum-wrapped, cheese is essentially in “suspended animation”. After opening it, it is a good idea to store it in such a way as to allow it to “breathe”, or continue aging. Wax paper does a fine job at that. This property, extended aging, has made cheese a very useful source of nutrition for travelers in ancient times. It was reportedly consumed in large quantities by Roman soldiers.

Walther and colleagues (2008) provide a good review of the role of cheese in nutrition and health. The full reference is at the end of this post. They point out empirical evidence that cheese, particularly that produced with Lactobacillus helveticus (e.g., Gouda and Swiss cheese), contributes to lowering blood pressure, stimulates growth and development of lean body tissues (e.g., muscle), and has anti-carcinogenic properties.

The health-promoting effects of cheese were also reviewed by Higurashi and colleagues (2007), who hypothesized that those effects may be in part due to the intermediate positive effects of cheese on adiponectin and visceral body fat levels. They conducted a study with rats that supports those hypotheses.

In the study, they fed two groups of rats an isocaloric diet with 20 percent of fat, 20 percent of protein, and 60 percent of carbohydrate (in the form of sucrose). In one group, the treatment group, Gouda cheese (produced with Lactobacillus helveticus) was the main source of protein. In the other group, the control group, isolated casein was the main source of protein. The researchers were careful to avoid confounding variables; e.g., they adjusted the vitamin and mineral intake in the groups so as to match them.

The table below (click to enlarge) shows initial and final body weight, liver weight, and abdominal fat for both groups of rats. As you can see, the rats more than quadrupled in weight by the end of the 8-weight experiment! Abdominal fat was lower in the cheese group; one type of visceral fat, mesenteric, was significantly lower. Whole body weight-adjusted liver weight was higher in the cheese group. Liver weight increase is often associated with increased muscle mass. The rats in the cheese group were a little heavier on average, even though they had less abdominal fat.


The figure below shows adiponectin levels at the 4-week and 8-week marks. While adiponectin levels decreased in both groups, which was to be expected given the massive gain in weight (and probably body fat mass), only in the casein group the decrease in adiponectin was significant. In fact, the relatively small decrease in the cheese group is a bit surprising given the increase in weight observed.


If we could extrapolate these findings to humans, and this is a big “if”, one could argue that cheese has some significant health-promoting effects. There is one small problem with this study though. To ensure that the rats consumed the same number of calories, the rats in the casein group were fed slightly more sucrose. The difference was very small though; arguably not enough to explain the final outcomes.

This study is interesting because the main protein in cheese is actually casein, and also because casein powders are often favored by those wanting to put on muscle as part of a weight training program. This study suggests that the cheese-ripening process induced by Lactobacillus helveticus may yield compounds that are particularly health-promoting in three main ways – maintaining adiponectin levels; possibly increasing muscle mass; and reducing visceral fat gain, even in the presence of significant weight gain. In humans, reduced circulating adiponectin and increased visceral fat are strongly associated with the metabolic syndrome.

One caveat: if you think that eating cheese may help wipe out that stubborn abdominal fat, think again. This is a topic for another post. But, briefly, this study suggests that cheese consumption may help reduce visceral fat. Visceral fat, however, is generally fairly easy to mobilize (i.e., burn); much easier than the stubborn subcutaneous body fat that accumulates in the lower abdomen of middle-aged men and women. In middle-aged women, stubborn subcutaneous fat also accumulates in the hips and thighs.

Could eating Gouda cheese, together with other interventions (e.g., exercise), become a new weapon against the metabolic syndrome?

References:

Higurashi, S., Kunieda, Y., Matsuyama, H., & Kawakami, H. (2007). Effect of cheese consumption on the accumulation of abdominal adipose and decrease in serum adiponectin levels in rats fed a calorie dense diet. International Dairy Journal, 17(10), 1224–1231.

Walther, B., Schmid, A., Sieber, R., & Wehrmüller, K. (2008). Cheese in nutrition and health. Dairy Science Technology, 88(4), 389-405.

Healthy Spirits: New Arrivals

The newness.

1. Drie Fontinen Schaerbeekse Kriek (bottled Oct. 2008)
2. Howe Sound Bailout Bitter(1 Liter)
3. Howe Sound Nut Brown Ale (1 Liter)
4. Mikkeller Beer Geek Breakfast
5. Mikkeller Black
6. Lucifer Glasses (beautiful goblet-style with a heavy, thick base)


cheers,

dave hauslein
beer manager
415-255-0610

Saturday, May 15, 2010

Intermittent fasting as a form of liberation

I have been doing a lot of reading over the years on isolated hunter-gatherer populations; see three references at the end of this post, all superb sources (Chagnon’s book on the Yanomamo, in particular, is an absolute page turner). I also take every opportunity I have to talk with anthropologists and other researchers who have had field experience with hunter-gatherer groups. Even yesterday I was talking to a researcher who spent many years living among isolated native Brazilian groups in the Amazon.

Maybe I have been reading too much into those descriptions, but it seems to me that one distinctive feature of many adults in hunter-gatherer populations, when compared with adults in urban populations, is that the hunter-gatherers are a lot less obsessed with food.

Interestingly, this seems to be a common characteristic of physically active children. They want to play, and eating is often an afterthought, an interruption of play. Sedentary children, who play indoors, can and often want to eat while they play.

Perhaps adult hunter-gatherers are more like physically active children than adults in modern urban societies. Maybe this is one of the reasons why adult hunter-gatherers have much less body fat. Take a look at the photo below (click to enlarge), from Wikipedia. It was reportedly taken in 1939, and shows three Australian aboriginals.


Hunter-gatherers do not have supermarkets, and active children need food to grow healthy. Adult urbanites have easy access to an abundance of food in supermarkets, and they do not need food to grow, at least not vertically.

Still, adult hunter-gatherers and children who are physically active are generally much less concerned about food than adults in modern urban societies.

It seems illogical, a bit like a mental disorder of some sort that has been plaguing adults in modern urban societies. A mental disorder that contributes to making them obese.

Modern urbanites are constantly worried about food. And also about material possessions, bills, taxes etc. They want to accumulate as much wealth as their personal circumstances allow them, so that they can retire and pay for medical expenses. They must worry about paying for their children’s education. Food is one of their many worries; for many it is the biggest of them all. Too much food makes you fat, too little makes you lose muscle (not really true, but a widespread belief).

Generally speaking, intermittent fasting is very good for human health. Humans seem to have evolved to be episodic eaters, being in the fasted state most of the time. This is perhaps why intermittent fasting significantly reduces levels of inflammation markers, promotes the recycling of “messed up” proteins (e.g., glycated proteins), and increases leptin and insulin sensitivity. It is something natural. I am talking about fasting 24 h at a time (or a bit more, but not much more than that), with plenty of water but no calories. Even skipping a meal now and then, when you are busy with other things, is a form of intermittent fasting.

Now, the idea that our hominid ancestors were starving most of the time does not make a lot of sense, at least not when we think about Homo sapiens, as opposed to earlier ancestors (e.g., the Australopithecines). Even archaic Homo sapiens, dating back to 500 thousand years ago, were probably too smart to be constantly starving. Moreover, the African savannas, where Homo sapiens emerged, were not the type of environment where a smart and social species would be hungry for too long.

Yet, intermittent fasting probably happened frequently among our Homo sapiens ancestors, for the same reason that it happens among hunter-gatherers and active children today. My guess is that, by and large, our ancestors were simply not too worried about food. They ate it because they were hungry, probably at regular times – as most hunter-gatherers do. They skipped meals from time to time.

They certainly did not eat to increase their metabolism, raise their thyroid hormone levels, or have a balanced macronutrient intake.

There were no doubt special occasions when people gathered for a meal as a social activity, but probably the focus was on the social activity, and secondarily on the food.

Of course, they did not have doughnuts around, or foods engineered to make people addicted to them. That probably made things a little easier.

Successful body fat loss through intermittent fasting requires a change in mindset.

References:

Boaz, N.T., & Almquist, A.J. (2001). Biological anthropology: A synthetic approach to human evolution. Upper Saddle River, NJ: Prentice Hall.

Chagnon, N.A. (1977). Yanomamo: The fierce people. New York, NY: Holt, Rinehart and Winston.

Price, W.A. (2008). Nutrition and physical degeneration. La Mesa, CA: Price-Pottenger Nutrition Foundation.

Friday, May 14, 2010

Healthy Spirits: MORE new stuff!!!

1. De Ryck Arend Tripel
2. BIO Gageleer Blond (brewed with Sweet Gale)
3. BIO Belgian Liereken Wild Berries
4. BIO Jessenhofke Herbal Triple (brewed with garlic)
5. Oud Beersel Bersalis Tripel
6. Oud Beersel Kriek and Gueuze in 750ml bottles

come and get it!

cheers,

dave hauslein
beer manager
415-255-0610

Healthy Spirits: New Arrivals

1. Avery Depuceleuse-from their super-limited barrel aged series. I don't have too much, so grab it while you can! Beer of the Month Club Members can reserve up to 2 bottles, everyone else will have to scramble for it!

2. Midnight Sun Mayhem Double IPA

3. AleSmith Horny Devil

4. Stone/Victory/Dogfish Head "Saison Du BUFF"

5. Valley Brewing Company Decadence 6



cheers,

dave hauslein
beer manager
415-255-0610