Mice Get Fit With ‘Exercise in a Pill’

Couch potatoes can get some of the benefits of exercise with a new drug, researchers say. So far, it has been tested only in mice. After four weeks of taking it, they burned more calories and had less fat than other mice. They also could run 44% farther and 23% longer on a treadmill. Mice who also exercised regularly got even more benefit with a second drug that was tested. They could run 68% longer and 70% farther than mice that exercised but didn’t get the drug. The Associated Press wrote about the study July 31. It was published online by the journal Cell.