Surprising Benefits of Brief, Intense Exercise

Exercise builds the body, clears the mind and helps us live longer. We know all that. A good workout can even be enjoyable, flooding the brain with feel-good chemicals. The list goes on: improving sleep, helping battle depression, even maybe boosting general happiness.

But we humans have an unsurpassed capacity for finding excuses not to do the things that are good for us. Often we blame our perceived lack of time.

And so I wondered: How long must we exercise to actually improve health?