How can physical activity improve health and wellness?

Answer 1

Without physical activity, muscles shrink and lose strength, the heart becomes weaker, joint mobility is lost, and excess weight is gained.

Answer 2

Is this really a college question?

Answer 3

This is what becomes of women who do not undertake physical activity:

http://3.bp.blogspot.com/_tQ74IfNZmZQ/SAJcxvA4EII/AAAAAAAAF0U/1Eo7nSHh7BA/s400/obese+ladies.jpg