SYNOPSIS: “ Worth All the Sweat ” (Economist, Jan. 2012); “ Exercise as Housecleaning for the Body ” (NYT); "Exercise as Housecleaning for the Body," Gretchen Reynolds, NYT, Feb. 2, 2012) We’ve all heard about the many downsides of being under pressure, but did you know that when it comes to the health of your cells, stress can be a good thing? Autophagy is the process by which cells clean out the “garbage” that accumulates in them. Cells constantly recycle old proteins and internal dead parts to use for energy. When the body undergoes stress—food deprivation or physical exertion—autophagy kicks in. This mechanism could help animals and humans survive through leaner times when sustenance is not readily available. Researchers have known for a while about the anti-aging effects of cell recycling. When animals are fed a near-starvation diet, they live longer. Some intrepid humans have adopted this practice with the hope of prolonging their lives. Recent research
Based on: “Personal Health: Too Much Medicine, and Too Few Checks,” (Jane Brody, NYT, Well Blog, April 17 2012) Over the last 100 years, life expectancy in the U.S. has increased dramatically. In 1910, for example, the average for men was 48 years. At 51 years, women didn’t fare much better. Today individuals can live well into their 80s. Longevity is both a blessing and a curse. As we age, maintaining good health becomes more complicated. Thanks to pharmaceutical advances, drug therapies have become highly targeted to treat specific conditions and illnesses; the longer we live, the more medications we need to take. The phenomenon known as overmedication of the elderly is a growing problem that costs the American healthcare system millions. Over 40% of people 65 and over take five or more medications. Often this is necessary to treat a variety of ailments, but when multiple doctors prescribe different classes of drugs to a single patient, problems inevitably ar