Yahoo News - Gene Tweaking Turns Couch Potato Mice Into Racers
WASHINGTON (Reuters) - Altering a single gene turned ordinary mice into marathon racers that could run for hours and eat huge amounts of food without getting fat, a team of researchers reported on Monday.

They said their study could lead to an exercise pill that gives many of the benefits of training without the need to sweat.

"It is a pill that, in part, mimics exercise. It mimics the metabolic activity associated with exercise," Howard Hughes Medical Institute investigator Ronald Evans of The Salk Institute for Biological Studies, who led the study, said in a telephone interview.

Someone is going to be very, very rich.