Whatever your goal, here two leading academics reveal exactly how much exercise you need to do to be "in shape."
Can exercise extend your life? - Harvard Health
Why you shouldn't exercise to lose weight, explained with 60+
Simple Healthy Living
cdn.jwplayer.com/v2/media/qQUX3kIK/poster.jpg?widt
Fasted Cardio: Working Out on an Empty Stomach, Explained
3 Ways to Stay in Shape - wikiHow
How Long Does It Take to Get Fit Again? - The New York Times
5 Ways to Maintain Muscle Mass
How Many Days a Week You Should Work Out for Muscle, Weight Loss
Cardio and Strength Training May Help You Live Longer, Study Says
How Long Does It Take to Get Fit Again? - The New York Times