Health experts want to of the benefits of experience. They belive it can lead to slower aging, longer life, better mood, stronger vision – the list goes on.The U.S. National Institutes of Health (NIH) is playing a key role in the effort. This year, it is launching a mayor study which will record in detail with happens in motion. Through its research, the NIH hopes to prove scientifically taht exercise is good medicine. Studies show taht many positive changes occur in the body during and after a workout. Exercise that have become weak, and can help repair tissues taht are failing due to disease or injuries, or aging.