Seth's Blog

I wrote recently about how our health care system resembles a protection racket. In a protection racket, you or someone else threatens people so that you can make money protecting them. Modern health care, especially in America, ignores prevention. It says let them get sick. Let the general public get sick so that we (health care providers) can make money treating them.

The profitability of let them get sick is illustrated by some numbers in Run Barefoot Run Healthy, a new book by Ashish Mukharji  (who gave me a copy). Ashish has run several marathons. Before he started running barefoot, running caused all sorts of problems. To deal with them was costly:

• Two or three pairs of orthotics (a type of insole): $200-$300 each.
• One MRI, for what turned out to be ITBS (Iliotibial Band Syndrome, a thigh injury): around $1,000.
• Twenty or more deep-tissue massage treatments for ITBS: around $80 each.
• Corns removed (twice): $500 per treatment.
• Twenty or more sessions of physical therapy for ITBS and Achilles tendonitis: $100-$250 per session.
• Several visits to orthopedists and podiatrists: $150 per visit.
• Cortisone injection for plantar fasciitis: $200.

Since he started barefoot running (3 years and 2 marathons ago), he has incurred no (zero) running-injury expenses. Interviews with other barefoot runners convince him this is typical. Long ago a runner friend of mine told me everyone who runs eventually hurts themselves. The truth of this was confirmed many times by runners I met after she said this. Now it appears she was right because all the runners she and I knew wore shoes.

I started barefoot running/walking on my treadmill a year ago. I have never had running injuries (probably because I walk — uphill fast — much more than run). Going barefoot saved time. During the first few months, I got four or five cuts (actually, splits) on the sides of my feet. The skin was split by  downward pressure. The cuts made ordinary walking (in shoes) a little unpleasant. I did nothing  about them. They healed and have not recurred.

A better health care system would have discovered the damage caused by running shoes long ago. We are lucky to live when personal scientists such as Ashish can figure out the truth themselves and tell others.

• Top uses of natto
• I found Three Cups of Tea (about establishing schools in Pakistan) unreadable. Whereas I want to learn more about Pratham schools.
• Stagnation in claims about climate-change skeptics (such as me)
• “A 51-year-old physician colleague who looked the picture of health—no cardiovascular risks, a marathon runner who had exercised vigorously each day for 30 years—had just flunked a calcium screening scan of his heart” (link). After I started doing the “wrong” thing (eat half a stick of butter per day) my calcium screening score substantially improved.
• more about scientific fraud at Duke University

In 1996 I put a treadmill in my office so that I could work standing up. My goal was better sleep (the more I stood, the better I slept), not weight loss (the usual reason for a treadmill desk). It was hard to walk a lot. Mostly I stood still. It was noisy, too — my neighbors complained. When the treadmill broke I didn’t replace it.

Now I walk on a treadmill for different reasons: to lower blood sugar and learn Chinese. Above is my current setup. I use the laptop to study Chinese (using Anki) or watch TV or movies. Studying Chinese while walking is much easier than studying Chinese while standing still or sitting. I have used flashcards but Anki (shown on the computer screen) helps space repetitions optimally. The headphones (Bose noise-reduction) are for TV and movies. I don’t need them for Anki.

I discovered via self-tracking that I could get my fasting blood sugar much closer to optimal by walking an hour per day. This took me a year to figure out and I discovered it by accident. Phil commented that I could have learned the same thing more quickly by searching websites or asking my doctor.

Whether I was rediscovering the fairly obvious is important to me. This website by Janet Ruhl, who has diabetes, is named “How to get your blood sugar under control”. Its advice says nothing about exercise, much less walking. Here’s one reason why:

I [Ruhl] currently control my own diabetes using a fairly low carbohydrate diet and very low doses of fast acting insulin at meal time. . . . At one point I exercised daily for a year and got my body fat down to 24%, which put me into the “Fitness” category for a woman my age. Despite what my doctors had told me, weight loss and intense fitness didn’t do a thing for my blood sugars, which got worse.

Emphasis added. I too did recommended amounts of aerobic exercise. I too found my blood sugar was nevertheless unpleasantly high. The usual recommendation of aerobic exercise may make it less likely you will do the long low-intensity exercise (ordinary walking) that my results suggest works. You may think: I’ve already exercised. I’m tired.

“Be very paranoid about any new drug.”

• A well-done study about the July spike in medication deaths. From The Browser.
• How microbes protect us
• Correlation between sitting and mortality, equated for physical activity.
• Exercise and weight loss. I had a similar experience: After an extremely intense racquetball session, I lost 6-8 pounds over the next two weeks.

Thanks to Peter Couvares and Casey Manion.