Diet log

09/14/2005 –

Weight: 189.7
Waist: 36.75

11:32 – Began drinking 250 cal sugar water.
14:42 – Finished drinking sugar water
15:30 – Ate peanut butter sandwich, yogurt
20:45 – Ate bowl of lentil soup w/yogurt
21:00 – Ate can of peaches

09/15/2005 -

Weight: 188.2
Waist: 36 5/8

11:30 Ate bowl of lentil soup
12:30 Ate Nature Valley Crunchy Granola Oats and Honey bar (180), Quaker Chewy Peanut Butter Chocolate crunch (120)
15:00 Began drinking 250 cal sugar water
17:00 Finished drinking

Seth Robert's Sugar diet

According to the paper referenced in the previous post, Seth Roberts initially began his diet by consuming 1000 kcal of fructose dissolved in 2 liter of water. This completely killed his appetite for the day, so he lowered the fructose consumed to 500/2 L, then to 250/2 L. At his target weight, he ate about 1200 kcal/day (one normal sized meal, plus two pieces of fruit and fructose). He also walked 2 hours/day (!) and did 30 minutes of aerobic exercise. On this regimen, it appears to have taken him about 3.5 months to go from 185 lbs to 150 lbs, or 2.5 lbs/week.

According to him, sucrose (common table sugar) has the same effect. Sugar contains about 4 cal/g.

500 cal * 1 g/4 cal = 125 g/L.

250 cal * 1 g/4 cal = 62.5 g/L.

125 cal * 1 g/4 cal = 31.25 g/L

Day 1:

Drank 500 kcal sucrose dissolved in 1 l of water

10:00 a.m.
2:00 p.m.
6:00 p.m.
10:00 p.m.

The Accidental Diet

Via Marginal Revolution.

The original paper reference:

Seth Roberts, “Self-experimentation as a source of new ideas: Ten examples about sleep, mood, health, and weight” (2004). Behavioral And Brain Sciences. 27(2). pp. 227-4749.

Postprint available free at http://repositories.cdlib.org/postprints/117

http://www.nytimes.com/2005/09/11/magazine/11FREAK.html

The New York Times
September 11, 2005
Does the Truth Lie Within?
By STEPHEN J. DUBNER and STEVEN D. LEVITT

The Accidental Diet

Seth Roberts is a 52-year-old psychology professor at the University of California at Berkeley. If you knew Roberts 25 years ago, you might remember him as a man with problems. He had acne, and most days he woke up too early, which left him exhausted. He wasn't depressed, but he wasn't always in the best of moods. Most troubling to Roberts, he was overweight: at 5-foot-11, he weighed 200 pounds.

When you encounter Seth Roberts today, he is a clear-skinned, well-rested, entirely affable man who weighs about 160 pounds and looks 10 years younger than his age. How did this happen?

It began when Roberts was a graduate student. First he had the clever idea of turning his personal problems into research subjects. Then he decided that he would use his own body as a laboratory. Thus did Roberts embark on one of the longest bouts of scientific self-experimentation known to man – not only poking, prodding and measuring himself more than might be wise but also rigorously recording every data point along the way.

Self-experimentation, though hardly a new idea in the sciences, remains rare. Many modern scientists dismiss it as being not nearly scientific enough: there is no obvious control group, and you can hardly run a double-blind experiment when the researcher and subject are the same person. But might the not-quite-scientific nature of self-experimentation also be a good thing? A great many laboratory-based scientific experiments, especially those in the medical field, are later revealed to have been marred by poor methodology or blatant self-interest. In the case of Roberts, his self-interest is extreme, but at least it is obvious. His methodology is so simple – trying a million solutions until he finds one that works – that it creates the utmost transparency.

In some ways, self-experimentation has more in common with economics than with the hard sciences. Without the ability to run randomized experiments, economists are often left to exploit whatever data they can get hold of. Let's say you're an economist trying to measure the effect of imprisonment on crime rates. What you would ideally like to do is have a few randomly chosen states suddenly release 10,000 prisoners, while another few random states lock up an extra 10,000 people. In the absence of such a perfect experiment, you are forced to rely on creative proxies – like lawsuits that charge various states with prison overcrowding, which down the road lead to essentially random releases of large numbers of prisoners. (And yes, crime in those states does rise sharply after the prisoners are released.)

What could be a more opportunistic means of generating data than exploiting your own body? Roberts started small, with his acne, then moved on to his early waking. It took him more than 10 years of experimenting, but he found that his morning insomnia could be cured if, on the previous day, he got lots of morning light, skipped breakfast and spent at least eight hours standing.

Stranger yet was the fix he discovered for lifting his mood: at least one hour each morning of TV viewing, specifically life-size talking heads – but never such TV at night. Once he stumbled upon this solution, Roberts, like many scientists, looked back to the Stone Age for explication. Anthropological research suggests that early humans had lots of face-to-face contact every morning but precious little after dark, a pattern that Roberts's TV viewing now mimicked.

It was also the Stone Age that informed his system of weight control. Over the years, he had tried a sushi diet, a tubular-pasta diet, a five-liters-of-water-a-day diet and various others. They all proved ineffective or too hard or too boring to sustain. He had by now come to embrace the theory that our bodies are regulated by a “set point,” a sort of Stone Age thermostat that sets an optimal weight for each person. This thermostat, however, works the opposite of the one in your home. When your home gets cold, the thermostat turns on the furnace. But according to Roberts's interpretation of the set-point theory, when food is scarcer, you become less hungry; and you get hungrier when there's a lot of food around.

This may sound backward, like telling your home's furnace to run only in the summer. But there is a key difference between home heat and calories: while there is no good way to store the warm air in your home for the next winter, there is a way to store today's calories for future use. It's called fat. In this regard, fat is like money: you can earn it today, put it in the bank and withdraw it later when needed.

During an era of scarcity – an era when the next meal depended on a successful hunt, not a successful phone call to Hunan Garden – this set-point system was vital. It allowed you to spend down your fat savings when food was scarce and make deposits when food was plentiful. Roberts was convinced that this system was accompanied by a powerful signaling mechanism: whenever you ate a food that was flavorful (which correlated with a time of abundance) and familiar (which indicated that you had eaten this food before and benefited from it), your body demanded that you bank as many of those calories as possible.

Roberts understood that these signals were learned associations – as dependable as Pavlov's bell – that once upon a time served humankind well. Today, however, at least in places with constant opportunities to eat, these signals can lead to a big, fat problem: rampant overeating.

So Roberts tried to game this Stone Age system. What if he could keep his thermostat low by sending fewer flavor signals? One obvious solution was a bland diet, but that didn't interest Roberts. (He is, in fact, a serious foodie.) After a great deal of experimenting, he discovered two agents capable of tricking the set-point system. A few tablespoons of unflavored oil (he used canola or extra light olive oil), swallowed a few times a day between mealtimes, gave his body some calories but didn't trip the signal to stock up on more. Several ounces of sugar water (he used granulated fructose, which has a lower glycemic index than table sugar) produced the same effect. (Sweetness does not seem to act as a “flavor” in the body's caloric-signaling system.)

The results were astounding. Roberts lost 40 pounds and never gained it back. He could eat pretty much whenever and whatever he wanted, but he was far less hungry than he had ever been. Friends and colleagues tried his diet, usually with similar results. His regimen seems to satisfy a set of requirements that many commercial diets do not: it was easy, built on a scientific theory and, most important, it did not leave Roberts hungry.

In the academic community, Roberts's self-experimentation has found critics but also serious admirers. Among the latter are the esteemed psychologist Robert Rosenthal, who has praised Roberts for “approaching data in an exploratory spirit more than, or at least in addition to, a confirmatory spirit” and for seeing data analysis “as the opportunity to confront a surprise.” Rosenthal went so far as to envision “a time in the future when 'self-experimenter' became a new part-time (or full-time) profession.”

But will Seth Roberts's strange weight-control solution – he calls it the Shangri-La Diet – really work for the millions of people who need it? We may soon find out. With the Atkins diet company filing for bankruptcy, America is eager for its next diet craze. And a few spoonfuls of sugar may be just the kind of sacrifice that Americans can handle.

Stephen J. Dubner and Steven D. Levitt are the authors of “Freakonomics: A Rogue Economist Explores the Hidden Side of Everything.” More information on the academic research behind this column is at www.freakonomics.com.

QOTD: Worry about cops now, corps later

writes:

If you’re going to hate and fear big power structures, shouldn’t you hate and fear the biggest and most powerful ones the most? Microsoft and Nike just determine what OS and shoes I wear – the BATF, DEA, cops, etc determine whether I live or die, whether or not I’m in jail, whether or not I’m allowed to keep my property…

I’m willing to start worrying about corps instead of cops as soon as the former are the biggest threat.

Guerrilla Drive Ins

Via BoingBoing. See the Santa Cruz Guerrilla Drive In website for info on how to start your own.

By CHRIS THOMPSON

Published: July 29, 2004

ANTA CRUZ, Calif.

LIKE most cities in Silicon Valley's outer stratosphere, Santa Cruz has a district dedicated to an odd marriage of high and low tech, where lumber mills and cement factories squat beside gleaming software business parks. But the geeks and hipsters who parked their bikes on this slab of broken land and sneaked past the “no trespassing” sign were not here on business. They were going to the movies.

Few theaters consist of dead weeds and a mound of gray slag squeezed between a laboratory and an alloy manufacturing firm. But these movie buffs have brought their own theater with them. For three years, cult-movie buffs have been organizing “guerrilla drive-ins” in a number of cities, rigging together a nest of digital projectors, DVD players, and radio transmitters or stereo speakers, spreading the word online, and assembling on parking lots or fields to watch obscure films beneath the stars.

They project the image onto warehouses or bridge pillars, tune their car stereos to a designated FM frequency, and sit back and enjoy the show. The only thing they do not do is ask for permission.

As dusk crept over the hills on a Friday night, a 1964 Ford pickup careened to the curb, and out jumped Wes Modes, the impresario behind the Santa Cruz guerrilla drive-in collective. Dressed in black and distinguished by a shock of frizzy red hair, Mr. Modes, 37, reached into the truck bed and began hauling out milk crates bristling with surge protectors and extension cords, a DVD player wired to an amplifier, and two 50-pound golf-cart batteries.

The police had broken up two showings in the last few weeks, so he kept his eyes peeled for patrol cars. As about 100 slackers, electrical engineers and graduate students unfurled blankets and waited for the opening credits to Richard Linklater's 2001 movie “Waking Life,” Mr. Modes checked his equipment. “I don't know how good the batteries are going to be,” he fretted. “So I think I want to run backup.” With a few sidelong glances, he strung out 300 feet of extension cord, crept down to the adjacent lab, and plugged into a socket he found in the driveway.

VCR's and specialty video stores may have exported art films to every corner of the country, but to Mr. Modes and his friends, they also left people stranded in their living rooms, starved for the community and fun of rep houses and B-movie drive-ins. In the mid-90's, cultural pranksters like David Krzysik, who runs the annual Brainwash Movie Festival in Oakland, Calif., experimented with replicating the ambience of old drive-ins, organizing movie showings in empty lots and open-air art spaces. But 16-millimeter projectors were too bulky and expensive for any but the most dedicated movie lover.

Now, high-quality DVD players, digital projectors and iPods have put the technology of drive-in movies into the hands of anyone with $1,500 to spare, giving rise to outdoor movie nights in locations from warehouse packing districts to suburban cul-de-sacs. Instructions on converting iPods into radio transmitters are available at Web sites like engadget.com, many DVD players cost less than $100 and any blank wall will work as a screen.

In cities like Tampa, Fla., and West Chester, Pa., as well as Santa Cruz, people are pirating a piece of that old Hollywood magic and challenging conventions on the role of public space in the process. “The one I used last week was unbelievable,” Mr. Krzysik said of the latest liquid-crystal-display projector he set up in Oakland. “And it's cheap, too. I think it cost $1,200, whereas in the old days it would have cost $30,000.”

Even $1,000 was too steep for John Young, a technophile in West Chester who became infatuated with guerrilla drive-ins after reading about them in a hobbyist magazine. So Mr. Young decided to build his own projector and found step-by-step instructions after just a few minutes of Web research.

“There's a community out there for some serious home theater geeks,” he said. “They're using parts from old rear-projection video systems, from sports bar televisions from back in the day.” Within a few weeks, Mr. Young had assembled his Commando Projector, a mass of circuit board and liquid crystal encased in an old heating duct mounted on the handlebars of his motorcycle.

For a year, Mr. Young has cruised the roads of Pennsylvania, scouting sites and tipping off his friends when he finds a winner. His Web site, www .tikaro.com/gdi, is emblazoned with an image of Che Guevara wearing 3-D glasses. “There's no novelty in watching a movie by yourself anymore,” Mr. Young wrote in a recent e-mail. “It's way more fun to watch 'The Bad News Bears Go to Japan' on the back of the old Y.M.C.A. building than it is to watch reruns of 'Jerry Maguire' on cable by yourself.”

Unlike Mr. Young, most guerrilla drive-in ringmasters seem to have come up with the idea by themselves and for their own reasons. In Florida, a pirate-radio enthusiast, Kelly Benjamin, staged a series of drive-in screenings to raise money for a quixotic 2003 Tampa City Council race. A Los Angeles filmmaker, Lawrence Bridges, has used guerrilla drive-ins to get around traditional distribution networks.

Mr. Bridges, an advertising executive who heads the digital design company Red Car, spent 12 years and $300,000 making a movie about ancient Greek demigods condemned to live in Los Angeles and act as characters from “The Importance of Being Earnest.” By the time he finished his project, he decided that the best showcase for this elegy to his hometown would be in the open air, with the cityscape as a living backdrop. So his staff spent a year sneaking onto parking lots and projecting his film against a wall on Saturday nights.

Red Car employees are currently showing his film at various locations in Dallas and plan to take the movie to an empty lot somewhere in Brooklyn. “We don't say, 'Can we use the space?' ” said Mr. Bridges's executive assistant, Destiny London, in a telephone interview. “But we've never had any problem.”

Susan Spann for The New York Times
Communal – Johnny Hirst, standing, and Wes Modes, lower right, founders of a film collective, prepared to screen Richard Linklater's “Waking Life” as an audience gathered in a run-down lot in Santa Cruz, Calif.
Mr. Modes and his Santa Cruz friends started showing movies in the backyard of the house they shared (their “collective” is largely a grander reference to their former living arrangements) before taking their act on the road, as it were. But Mr. Modes aspires to more than a good time on a Friday night: he wants to change the way people use public space, and return the commons to an idealized past untainted by money.

“Part of why we're doing this is to reclaim public space and give people a way to use the nighttime that's not mediated by commerce,” he said. “In our town, the parks close at sundown, you have to buy something at coffee shops. We wanted to give people a way to interact with each other outdoors without having to spend any money.”

Of course, he is also organizing guerrilla drive-ins for the thrill of being naughty. Not only are Mr. Modes and his friends trespassing when they set up their events, they are not exactly clearing their project with the companies that own the rights to the films they show, either.

Michael Bergman, a Los Angeles-based entertainment lawyer, said the fact that Mr. Modes does not charge admission does not diminish his basic violation of copyright law. “The copyright proprietor for the film has the exclusive right to publicly perform the work,” he said in a telephone interview. “Projecting a rented DVD onto the side of a building, where anybody who wants to can come and watch it, is certainly a violation of the copyright act.”

But whether Hollywood would bother to crack down on a few enterprising movie fans is another question. Breena Camden, a spokeswoman for Fox Searchlight Pictures, which owns the rights to the Linklater film that Mr. Modes showed here in mid-July, refused to comment, if only because her company has never encountered this situation before. “This is the first I've heard of it,” Ms. Camden admitted.

So for now, Mr. Modes and his friends seem safe. Even the police do not really care; the Santa Cruz deputy police chief, Patty Sapone, said her officers had shut down the previous movie because Mr. Modes was using public property; as far as trespassing at the new site, it is not a matter for the police unless the property owner complains.

As the ocean breeze took the edge off the summer heat, Becca Anderson, 24, sat on a blanket and waited for the show to start. Ms. Anderson moved in May from Wisconsin to San Mateo, south of San Francisco, looking for work and a taste of the Bay Area's counterculture, she said, but found herself surrounded by computer geeks who talked endlessly about gaming.

The San Francisco club scene was too fast for her, she said, so she and her friends logged onto www .squidlist.com, the local Web clearinghouse for subversive culture, and found out about Mr. Modes's labor of love. “They show some awesome movies,” Ms. Anderson said. “You don't often see a drive-in with 'Waking Life.' Or 'Dr. Strangelove.' “

Just before the main feature, Mr. Modes showed a few experimental short films as appetizers. The clear crowd favorite was “Round and Round,” a 1939 General Motors educational cartoon about the laws of economics. After all, buying and selling was exactly what these people have come here to avoid.

Women who get boob jobs generally happy with results. Also, is a jerk.

Via Will Wilkinson

Plast Reconstr Surg. 1994 Dec;94(7):958-69. Related Articles, Links

Comment in:
Plast Reconstr Surg. 1995 Oct;96(5):1237-8.

The efficacy of breast augmentation: breast size increase, patient satisfaction, and psychological effects.

Young VL, Nemecek JR, Nemecek DA.

Division of Plastic and Reconstructive Surgery, Washington University School of Medicine, St. Louis, Mo.

In this study designed to quantify the degree of breast enlargement produced by augmentation mammaplasty, 112 women who underwent breast augmentation were interviewed. The size increase that typically resulted from various implant volumes was measured by comparing preoperative and postoperative bra sizes. For the study group as a whole, the average increase was two bra sizes (either increased cup size or a combination of increased cup size and chest circumference), regardless of the implant volume inserted. Patients also were asked a series of questions to evaluate the impact of the surgery on various psychological parameters, including body image, feelings of self-confidence, and interpersonal relationships. Along with having a very positive body image, the group reported decreased self-consciousness (86 percent) and heightened self-confidence (88 percent); in addition, 95 percent said they felt better about themselves after surgery. The women's satisfaction with the results of augmentation and the success of surgery in meeting their expectations also were measured. Eighty-six percent reported being completely or mostly satisfied with the postoperative results, 86 percent felt the operation was a complete success, and 95 percent said that augmentation met their expectations.

Immortal

Saw the movie Immortal last night. It's a combination of live action and animation, akin to Casshern and Sky Captain and the World of Tomorrow, which came out about the same time.

It's set in future Earth, in a Blade Runneresque urban dystopia. A single large corporation, Eugenics, has near police state powers.

The premise is that the ancient Egyptian gods were in fact immortal aliens. Bast, Horus, and return in a giant floating pyramid which parks itself above one of the cities (New York?). For some reason, Horus has to find a mate and reproduce within the next seven days, else he loses his immortality. Most of the movies follows his efforts to first find a host body, and then to find and woo Jill, a blue haired alien apparently destined to bear his child.

Some of the CGI was quite beautiful, especially the monsters and landscape scenes. However, most of the humanoid characters looked unrealistic and plastic, especially Horus.

However, the plot was a confusing mess.

Price gouging preferable to eye gouging

We're seeing lot's of indignation over so-called “price gouging” right now. What you don't see is much discussion of how goods would be allocated in the absence of “price gouging”. As points out:

“…In the absence of gouging using money, people gouge the old-fashioned way: with their fists or with weapons.

I can't win in a fistfight. I don't own a firearm. With scarcity of something desperately needed, money is my only shot at getting it; I can't beat up the guy in front of me for it.

More importantly, I have to ask myself how I'd prefer that the guy in front of me beat me out for a needed, scarce item. Would I prefer he paid the guy money I don't have and can't compete with? Or would I prefer he punched me in the head and kicked me in the ribs? Would I prefer being shot over being outbid on that last cab ride home?

Easy, easy, easy call. I prefer price gouging, even if the result is that I'm priced out of a particular good.”

The Hedge of Bureaucracy: Why NOLA disaster relief has been inadequate…

Via Russell Nelson:

Riot Control

You know, if we had a rational drug policy, we'd be dropping dozens of bales of marijuana into New Orleans right now.