Gretchen Reynolds

Monday,Apr 18,2011

Let’s consider the butterfly. One of the most taxing movements in sports, the butterfly requires greater energy than bicycling at 14 miles per hour, running a 10-minute mile, playing competitive basketball or carrying furniture upstairs. It burns more ...

Wednesday,Mar 02,2011

We all know that physical activity is beneficial in countless ways, but even so, Dr. Mark Tarnopolsky, a professor of pediatrics at McMaster University in Hamilton, Ontario, was startled to discover that exercise kept a strain of mice from becoming gray prematurely.

But shiny fur was the l...

Monday,Feb 07,2011

A few years ago, researchers at the National Institute of Health and Nutrition in Japan put rats through a series of swim tests with surprising results. They had one group of rodents paddle in a small pool for six hours, this long workout broken into two sessions of three hours each. A second gro...

Syndicate content