Fitness It S Never Too Late
Couch potatoes, take heart. A growing body of research shows that no matter how old you are, regular physical activity–20 to 60 minutes of exercise three to five days a week–can boost fitness dramatically. Out-of-shape 50-year-olds regained the aerobic capacity they’d had in their 20s after six months of exercise, according to one study. Even 90-year-olds improved muscle strength by 174 percent after eight weeks of weight training, according to researchers at Tufts University....