Authors Sandra Aamodt and Sam Wang, writing for the New York Times, cite scores of research showing we have a fixed will power budget, one that we should be careful spending.
"If we tap into this neural reservoir and use it on one thing, we have less for others," says psychologist Daniel Goldman. "Tasks that demand some self-control make it harder for us to do the next thing that takes will power...Some neuroscientists suspect that self-control consumes blood sugar, which takes a while to build up again, and so the depletion effect."
The flip side is that, unlike our assumption that we are born with a fixed amount of brain goo that depletes over time, science now confirms the brain makes about 10,000 new cells every day that migrate to where they are needed. Once there, each cell makes around 10,000 connections to other brain cells over the successive four months.As a result, each time you exercise will power, you strengthen your brain’s "executive center" - located just behind the forehead. Learning to delay gratification in one area like food increases your ability to resist impulse buying at the store, for instance. (Remember our recent conversations about how developing discipline in one area - like food choices - improves our performance in other areas - like C25K?)
I suspect this is valuable information - not only for adults like us who are retraining our brains, but also for those of us who want to give our children and grandchildren a head start on healthy living.
Healthy You Challenge 2008
This week, I'm pleased to report the brain and body cooperated to produce another two-pound loss, bringing the totals since January 15 to 37 pounds and 31.5 inches lost. That means we’re 57 percent toward the goal of losing a total of 65 pounds in 33 weeks, or by August 12.
BMI: Start 33.9 / Current 27.9 / Goal 23.4 or less
Waist-to-hip ratio: Start .94 / Current .85 / Goal .80 or less
