Keeping strong and physically fit is crucial to maintaining independence among the elderly. Exercise has repeatedly been shown to reduce or slow age-related declines in physical function and is a widely recommended for seniors, but the way that older people respond to exercise varies widely. A new study by Thomas W. Buford et al. examines the ACE I/D gene and whether its variations - the ID, DD, and II genotypes - impact some seniors' ability to fully reap the benefits of exercise. Continued at MedicalNewsToday>>