Exercise Keeps You Young
The lazy mouse is an old mouse
A recent article published in the Proceedings of the National Academy of Sciences found that mice that exercised vigorously did not show signs of aging compared to mice that did not exercise.
The study used mice that were genetically unable to repair mitochondria and therefore aged rapidly. The New York Times article on the study reports:
By the time they reached 8 months, or their early 60s in human terms, the animals were extremely frail and decrepit, with spindly muscles, shrunken brains, enlarged hearts, shriveled gonads and patchy, graying fur. Listless, they barely moved around their cages. All were dead before reaching a year of age.