Doing 30 to 60 minutes of one exercise weekly could help you live longer, study says

"Now we may know how much time to spend on those exercises, according to new research published Monday in the British Journal of Sports Medicine.

Compared with people who didn’t do muscle-strengthening activities, those who did 30 to 60 minutes of resistance, strength or weight training weekly had a 10% to 20% lower risk of early death from all causes, and of getting heart disease, diabetes or cancer at all, the research authors found."