The Human Edge

Tuesday, August 3rd, 2010

NPR has a “special series” on how evolution gave us the human edge.

Naturally the piece on shoulder anatomy and thrown weapons caught my attention:

Shea explains that the secret of the modern shoulder is its ability to move the arm in almost any direction, even behind the back. That, combined with other early human traits, enabled us to throw with power and accuracy.

“We have a wrist that can move like a whip, that can accelerate through throwing,” he explains. “And your gluteus muscles — you know, your rear end, your thighs, your calves — these are things that make for good running, but they also make for good throwing.”

Early humans first used rocks as weapons to kill prey. As our bodies evolved, we became more able to use advanced weapons like spears and bows and arrows.

It also caught my attention that NPR was presenting the case that a meat-based diet made us smarter:

Our earliest ancestors ate their food raw — fruit, leaves, maybe some nuts. When they ventured down onto land, they added things like underground tubers, roots and berries.

It wasn’t a very high-calorie diet, so to get the energy you needed, you had to eat a lot and have a big gut to digest it all. But having a big gut has its drawbacks.

“You can’t have a large brain and big guts at the same time,” explains Leslie Aiello, an anthropologist and director of the Wenner-Gren Foundation in New York City, which funds research on evolution. Digestion, she says, was the energy-hog of our primate ancestor’s body. The brain was the poor stepsister who got the leftovers.

Until, that is, we discovered meat.

“What we think is that this dietary change around 2.3 million years ago was one of the major significant factors in the evolution of our own species,” Aiello says.

That period is when cut marks on animal bones appeared — not a predator’s tooth marks, but incisions that could have been made only by a sharp tool. That’s one sign of our carnivorous conversion. But Aiello’s favorite clue is somewhat ickier — it’s a tapeworm. “The closest relative of human tapeworms are tapeworms that affect African hyenas and wild dogs,” she says.

So sometime in our evolutionary history, she explains, “we actually shared saliva with wild dogs and hyenas.” That would have happened if, say, we were scavenging on the same carcass that hyenas were.

But dining with dogs was worth it. Meat is packed with lots of calories and fat. Our brain — which uses about 20 times as much energy as the equivalent amount of muscle — piped up and said, “Please, sir, I want some more.”

Drowning Doesn’t Look Like Drowning

Friday, July 9th, 2010

Drowning doesn’t look like drowning — or, rather, it doesn’t look like TV drowning:

The Instinctive Drowning Response – so named by Francesco A. Pia, Ph.D., is what people do to avoid actual or perceived suffocation in the water. And it does not look like most people expect. There is very little splashing, no waving, and no yelling or calls for help of any kind. To get an idea of just how quiet and undramatic from the surface drowning can be, consider this: It is the number two cause of accidental death in children, age 15 and under (just behind vehicle accidents) – of the approximately 750 children who will drown next year, about 375 of them will do so within 25 yards of a parent or other adult. In ten percent of those drownings, the adult will actually watch them do it, having no idea it is happening (source: CDC). Drowning does not look like drowning – Dr. Pia, in an article in the Coast Guard’s On Scene Magazine, described the instinctive drowning response like this:

  1. Except in rare circumstances, drowning people are physiologically unable to call out for help. The respiratory system was designed for breathing. Speech is the secondary or overlaid function. Breathing must be fulfilled, before speech occurs.
  2. Drowning people’s mouths alternately sink below and reappear above the surface of the water. The mouths of drowning people are not above the surface of the water long enough for them to exhale, inhale, and call out for help. When the drowning people’s mouths are above the surface, they exhale and inhale quickly as their mouths start to sink below the surface of the water.
  3. Drowning people cannot wave for help. Nature instinctively forces them to extend their arms laterally and press down on the water’s surface. Pressing down on the surface of the water, permits drowning people to leverage their bodies so they can lift their mouths out of the water to breathe.
  4. Throughout the Instinctive Drowning Response, drowning people cannot voluntarily control their arm movements. Physiologically, drowning people who are struggling on the surface of the water cannot stop drowning and perform voluntary movements such as waving for help, moving toward a rescuer, or reaching out for a piece of rescue equipment.
  5. From beginning to end of the Instinctive Drowning Response people’s bodies remain upright in the water, with no evidence of a supporting kick. Unless rescued by a trained lifeguard, these drowning people can only struggle on the surface of the water from 20 to 60 seconds before submersion occurs.

Adventures in Diet

Monday, July 5th, 2010

Years ago, when the Web was young and I first became interested in evolutionary fitness and ketogenic diets, I read that the Eskimos had traditionally lived on a diet almost entirely bereft of carbohydrates — and those Eskimos who adopted the white man’s diet quickly acquired western ailments that were previously unknown to them: dental caries (cavities), diabetes, etc.

Harvard anthropologist Vilhjalmur Stefansson went to live amongst the Eskimos on and off for years, and in 1935 Harper’s published his Adventures in Diet:

In the morning, about seven o’clock, winter-caught fish, frozen so hard that they would break like glass, were brought in to lie on the floor till they began to soften a little. One of the women would pinch them every now and then until, when she found her finger indented them slightly, she would begin preparations for breakfast. First she cut off the head and put them aside to be boiled for the children in the afternoon (Eskimos are fond of children, and heads are considered the best part of the fish). Next best are the tails, which are cut off and saved for the children also. The woman would then slit the skin along the back and also along the belly and getting hold with her teeth, would strip the fish somewhat as we peel a banana, only sideways where we peel bananas, endways.

Thus prepared, the fish were put on dishes and passed around. Each of us took one and gnawed it about as an American does corn on the cob. An American leaves the cob; similarly we ate the flesh from the outside of the fish, not touching the entrails. When we had eaten as much as we chose, we put the rest on a tray for dog feed.

After breakfast all the men and about half the women would go fishing, the rest of the women staying at home to keep house. About eleven o’clock we came back for a second meal of frozen fish just like the breakfast. At about four in the afternoon the working day was over and we came home to a meal of hot boiled fish.

Also we came home to a dwelling so heated by the cooking that the temperature would range from 85° to 100°F or perhaps even higher — more like our idea of a Turkish bath than a warm room. Streams of perspiration would run down our bodies, and the children were kept busy going back and forth with dippers of cold water of which we naturally drank great quantities.

Just before going to sleep we would have a cold snack of fish that had been left over from dinner. Then we slept seven or eight hours and the routine of the day began once more.

After some three months as a guest of the Eskimos I had acquired most of their food tastes. I had to agree that fish is better boiled than cooked any other way, and that the heads (which we occasionally shared with the children) were the best part of the fish. I no longer desired variety in the cooking, such as occasional baking — I preferred it always boiled if it was cooked. I had become as fond of raw fish as if I had been a Japanese. I like fermented (therefore slightly acid) whale oil with my fish as well as ever I liked mixed vinegar and olive oil with a salad. But I still had two reservations against Eskimo practice; I did not eat rotten fish and I longed for salt with my meals.

There were several grades of decayed fish. The August catch had been protected by longs from animals but not from heat and was outright rotten. The September catch was mildly decayed. The October and later catches had been frozen immediately and were fresh. There was less of the August fish than of any other and, for that reason among the rest, it was a delicacy — eaten sometimes as a snack between meals, sometimes as a kind of dessert and always frozen, raw.

In midwinter it occurred to me to philosophize that in our own and foreign lands taste for a mild cheese is somewhat plebeian; it is at least a semi-truth that connoisseurs like their cheeses progressively stronger. The grading applies to meats, as in England where it is common among nobility and gentry to like game and pheasant so high that the average Midwestern American or even Englishman of a lower class, would call them rotten.

I knew of course that, while it is good form to eat decayed milk products and decayed game, it is very bad form to eat decayed fish. I knew also that the view of our populace that there are likely to be “ptomaines” in decaying fish and in the plebeian meats; but it struck me as an improbable extension of the class-consciousness that ptomaines would avoid the gentleman’s food and attack that of a commoner.

These thoughts led to a summarizing query; If it is almost a mark of social distinction to be able to eat strong cheeses with a straight face and smelly birds with relish, why is it necessarily a low taste to be fond of decaying fish? On that basis of philosophy, though with several qualms, I tried the rotten fish one day, and if memory servers, like it better than my first taste of Camembert. During the next weeks I became fond of rotten fish.

About the fourth month of my first Eskimo winter I was looking forward to every meal (rotten or fresh), enjoying them, and feeling comfortable when they were over. Still I kept thinking the boiled fish would taste better if only I had salt. From the beginning of my Eskimo residence I had suffered from this lack. On one of the first few days, with the resourcefulness of a Boy Scout, I had decided to make myself some salt, and had boiled sea water till there was left only a scum of brown powder. If I had remembered as vividly my freshman chemistry as I did the books about shipwrecked adventurers, I should have know in advance that the sea contains a great many chemicals besides sodium chloride, among them iodine. The brown scum tasted bitter rather than salty. A better chemist could no doubt have refined the product. I gave it up, partly through the persuasion of my host, the English-speaking Roxy.

The Mackenzie Eskimos, Roxy told me, believe that what is good for grown people is good for children and enjoyed by them as soon as they get used to it. Accordingly they teach the use of tobacco when a child is very young. It then grows to maturity with the idea that you can’t get along without tobacco. But, said Roxy, the whalers have told that many whites get along without it, and he had himself seen white men who never use it, while the few white women, wives of captains, none used tobacco. (This, remember, was in 1906.)

Now Roxy had heard that white people believe that salt is good for, and even necessary for children, so they begin early to add salt to the child’s food. That child then would grow up with the same attitude toward salt as an Eskimo has toward tobacco. However, said Roxy, since we Eskimos were mistaken in thinking tobacco so necessary, may it be that the white men are mistaken about salt? Pursuing the argument, he concluded that the reason why all Eskimos dislike salted food and all white men like it was not racial but due to custom. You could then, break the salt habit as easily as the tobacco habit and you would suffer no ill result beyond the mental discomfort of the first few days or weeks.

Roxy did not know, but I did as an anthropologist, that in pre-Columbian times salt was unknown or the taste of it disliked and the use of it avoided through much of North and South America. It may possibly be true that the carnivorous Eskimos in whose language the word salty, mamaitok, is synonymous with with evil-tasting, disliked salt more intensely than those Indians who were partly herbivorous. Nevertheless, it is clear that the salt habit spread more slowly through the New World from the Europeans than the tobacco habit through Europe from the Indians. Even today there are considerable areas, for instance in the Amazon basin, where the natives still abhor salt. Not believing that the races differ in their basic natures, I felt inclined to agree with Roxy that the practice of slating food is with us a social inheritance and the belief in its merits a part of our folklore.

Through this philosophizing I was somewhat reconciled to going without salt, but I was nevertheless, overjoyed when one day Ovayuak, my new host in the eastern delta, came indoors to say that a dog team was approaching which he believed to be that of Ilavinirk, a man who had worked with whalers and who possessed a can of salt. Sure enough, it was Ilavinirk, and he was delighted to give me the salt, a half-pound baking-powder can about half full, which he said he had been carrying around for two or three years, hoping sometime to meet someone who would like it for a present. He seemed almost as pleased to find that I wanted the salt as I was to get it. I sprinkled some on my boiled fish, enjoyed it tremendously, and wrote in my diary that it was the best meal I had had all winter. Then I put the can under my pillow, in the Eskimo way of keeping small and treasured things. But at the next meal I had almost finished eating before I remembered the salt. Apparently then my longing for it had been what you might call imaginary. I finished without salt, tried it at one or two meals during the next few days and thereafter left it untouched. When we moved camp the salt remained behind.

After the return of the sun I made a journey of several hundred miles to the ship Narwhal which, contrary to our expectations of the late summer, had really come in and wintered at Herschel Island. The captain was George P. Leavitt, of Portland, Maine. For the few days of my visit I enjoyed the excellent New England cooking, but when I left Herschel Island I returned without reluctance to the Eskimo meals of fish and cold water. It seemed to me that, mentally and physically, I had never been in better health in my life.

(Hat tip to Buckethead, who is preparing to join Aretae in his paleo-diet.)

A Strong Voice

Wednesday, June 16th, 2010

Both men and women can accurately assess a man’s upper body strength based on his voice alone:

A team led by Aaron Sell at the University of California, Santa Barbara, recorded the voices of more than 200 men from the US, Argentina, Bolivia and Romania, who all repeated a short phrase in their native tongue. Sell’s team also put the men through a battery of tests of upper body strength.

When university students listened to the recordings, they accurately predicted the strength of the men, based on a seven-point scale from “weak” to “strong” — regardless of the language used. The voice analysis provided just as much information about a speaker’s strength as photographs.

One World Cup

Saturday, June 12th, 2010

Steve Sailer has some fun at soccer’s expense:

Soccer is by no means a bad sport to play. It’s fun, good exercise, cheap, and, unlike basketball or football, it doesn’t help to be 7-feet tall or 300 pounds. In fact, soccer shares many virtues with hiking, but there are no hiking hooligans and nobody calls you a chauvinistic boor if you don’t watch Sweden v. Paraguay on TV in the World Hiking Cup.

The American professional classes have learned that soccer is a terrific game for small children. In comparison, tee-ball generates farce, while Little League baseball inflicts humiliation on rightfielders who drop fly balls, strike out, and get picked off. (Not that I’m bitter or anything.) Via random Brownian motion, a soccer team of tykes is almost guaranteed to stumble into a few goals. (That’s why college robot-building competitions typically feature soccer matches.) When my five-year-old would trot off the field after one of his AYSO games, which he spent discussing the Power Rangers with his opponents while occasionally swiping at the ball as it rolled past, he’d brightly inquire, “Did we win? How many goals did I score?”

To us Americans, a kids’ soccer game doesn’t look all that different from the endlessly ineffectual endeavors of the scoreless 1994 Brazil-Italy World Cup final in the Rose Bowl. Similarly, because we can’t recognize quality soccer, we’re as happy to root for our women as our men. We were ecstatic over America’s victory in the 1999 Women’s World Cup of soccer. We’d beaten the world! When cynics pointed out that the world, other than China and Norway, doesn’t much care about women’s soccer, well, that just made us even prouder of how liberated our women are, compared to those poor, oppressed women of Paris, Milan, and London, whose consciousnesses haven’t been raised enough to want to trade in their Manolo Blahniks for soccer spikes.

Squattin’ Ain’t Easy

Tuesday, June 8th, 2010

Powerlifter Logan Lacy is just 21 years old, and already he’s squatting 1000 pounds — or trying to:

That’s his second lift. He comes back for a third.

He actually squatted 1014 a few months ago:

In his own words, “And yes after the rack command I did pass out briefly. Thank God for good spotters!”

Get Zombie Fit

Friday, June 4th, 2010

I’ve been watching parkour for years — and watching Jackie Chan’s proto-parkour before that — and I’m sure I wasn’t the first person to think, this would be excellent training for escaping a zombie horde.

A few Chicagoland traceurs decided to commercialize that fanciful idea and created ZombieFit. Then the local WGN news team covered their zombie workout:

Is the female reporter trying to make us hate her?

By the way, preparing for a zombocalypse is also a fun way to get prepared for a more mundane disaster.

Floyd Landis Admits Doping, Accuses Lance Armstrong

Thursday, May 20th, 2010

I’m shocked — shocked! — to find that doping is going on in cycling:

The emails are particularly focused on American riders. Mr. Landis said in them that during his career, he and other American riders learned how to conduct blood transfusions, take the synthetic blood booster Erythropoietin, or EPO, and use steroids. Mr. Landis said he started using testosterone patches, then progressed to blood transfusions, EPO, and a liquid steroid taken orally.

In one of the emails, dated April 30 and addressed to Stephen Johnson, the president of USA Cycling, Mr. Landis said that Mr. Armstrong’s longtime coach, Johan Bruyneel, introduced Mr. Landis to the use of steroid patches, blood doping and human growth hormone in 2002 and 2003, his first two years on the U.S. Postal Service team. He alleged Mr. Armstrong helped him understand the way the drugs worked. “He and I had lengthy discussions about it on our training rides during which time he also explained to me the evolution of EPO testing and how transfusions were now necessary due to the inconvenience of the new test,” Mr. Landis claimed in the email. He claimed he was instructed by Mr. Bruyneel how to use synthetic EPO and steroids and how to carry out blood transfusions that doping officials wouldn’t be able to detect. Mr. Bruyneel and Mr. Johnson could not be reached for comment.

In the same email, Mr. Landis wrote that after breaking his hip in 2003, he flew to Girona, Spain—a training hub for American riders—and had two half-liter units of blood extracted from his body in three-week intervals to be used later during the Tour de France. The extraction, Mr. Landis claimed, took place in Mr. Armstrong’s apartment, where blood bags belonging to Mr. Armstrong and his then-teammate George Hincapie were kept in a refrigerator in Mr. Armstrong’s closet. Mr. Landis said he was asked to check the temperature of the blood daily. According to Mr. Landis, Mr. Armstrong left for a few weeks and asked Mr. Landis to make sure the electricity didn’t go off and ruin the blood. George Hincapie, through a spokesman, denied the allegations.

Parkour Generations Training Day

Thursday, May 6th, 2010

Parkour Generations led a Training Day in New York City a few years ago. Those of us in the hinterlands can watch the video:

The Top Ten Staph Infections in MMA History

Wednesday, May 5th, 2010

Staph infections are no joke. If your job involves grappling — without a gi — while covered in abrasions from punches and kicks, you have to keep on the look out for small staph infections, before they get big.

And if you’re the kind of guy who volunteers to hop in the Octagon, you’re probably not quick to run to the doctor for a painful pimple.

This behavior leads to the top ten staph infections in MMA history. For your own sanity, do not follow the link.

Privilege Pulls Qatar Toward Unhealthy Choices

Sunday, May 2nd, 2010

The Connecticut-sized nation of Qatar has the second highest per capita GDP in the world, with a native elite of 250,000 surrounded by more than a million foreign workers. Now the combination of new wealth and old traditions is leading to serious health problems:

According to the International Association for the Study of Obesity, Qatar ranks sixth globally for prevalence of obesity and has the highest rate of obesity among boys in the Middle East and North African region. A recent article in the Qatari newspaper Al Watan said that local health experts predicted that within five years, 73 percent of Qatari women and 69 percent of the men would qualify as obese.

Obesity is considered the most important factor in the development of diabetes and is a prime contributor to many other ailments, like hypertension. The International Diabetes Federation ranks Qatar fifth globally in terms of the proportion of people aged 20 to 79 with diabetes.

The March of Dimes Foundation, a United States charity that focuses on trying to wipe out birth defects, listed Qatar as 16th globally for the incidence of birth defects per 1,000 live births. The chief cause of the problem in Qatar is consanguineous marriages, experts here said. Saudi Arabia ranked second globally.

For all of these challenges, and for all of its wealth, Qatar has primarily focused on the treatment of diseases rather than on prevention.

Ultimate Parkour Challenge

Thursday, April 29th, 2010

MTV’s Ultimate Parkour Challenge doesn’t seem quite ready for prime time, but the spectacular moments are quite spectacular — and scary:

Getting Through Allergy Season

Thursday, April 29th, 2010

Some advice on getting through allergy season:

Increase circulation to your sinuses and throat areas by complaining endlessly about your allergies in that nasal little voice of yours.

From The Onion.

What idiot signed in as Maxim Afinogenov?

Tuesday, April 27th, 2010

At Tuesday night’s adult pick-up hockey at the Pelham Ice Rink in Birmingham, Alabama, one of the players signing in asked a reasonable question: What idiot signed in as Maxim Afinogenov?

Turns out, the “idiot” actually was Afinogenov, the 30-year-old right-winger for the NHL Atlanta Thrashers, three-time Russian Olympian, and seven-time member of the Russian National Team that is competing in the IIHF World Championships next month in Germany.

The man known in hockey as “Mad Max” for his blazing speed up and down the ice has been in Birmingham all week with his girlfriend, Elena Dementieva, the top-ranked tennis player on the Russian team that plays the United States in a Fed Cup semifinal match that begins today at the Birmingham-Jefferson Convention Complex Arena.

But with the Thrashers’ season over and training camp coming up for the Russian National Team, the Moscovite was looking for some ice time.

Jeff Cheeseman, director of hockey for the Pelham Civic Center, couldn’t believe it when he got the call from Afinogenov’s agent.

“His agent said he wanted to skate,” Cheeseman said. “So I told her we had an adult pick-up game on Tuesday nights, and (Afinogenov) showed up. We limit the number of players, so you have to sign in and pay $10. I made sure his name was first on the list.”

But no, he didn’t make Afinogenov pay the $10.

“He was very professional, sharing the puck and everything,” Cheeseman said. “Then I told him we have a little better level of competition on Thursday nights with BASH (Birmingham Area Select Hockey). These are guys who played college or minor league, a few of the old Birmingham Bulls.

“As a general rule, we don’t allow drop-ins. We made an exception.”

The biggest problem Thursday turned out to be which team Afinogenov played with. He started out on the Black team and within 10 minutes the score was 7-2, with Afinogenov scoring all seven goals — “the quickest paced 10 minutes we’ve ever played,” Cheeseman said.

At that point he was “traded” to the White team, which wound up winning, 16-13.

“Of the 29 goals, Maxim scored 17, including the last three after it was tied, 13-13,” Cheeseman said. “And he didn’t come off the ice in either the second or third periods. He told us he was looking for conditioning. And besides, who was going to tell him to come off”

I don’t play hockey, but this reminds me of the time I decided not to go to Chris Brennan’s Westside Tournament, and Genki Sudo, not yet a name in American MMA circles, decided to show up and compete. The first fighter he schooled was Bao Quach, one of Brennan’s best students and now a pro fighter.

Pro Football Players Are Really, Really Fast

Monday, April 12th, 2010

Compared to ordinary Joes, pro football players are really, really fast — even the big, fat linemen: