The 5 components of physical fitness are more important than your weight in protecting your health, according to a study conducted by University of South Carolina researchers and published in the Journal of the American Medical Association.
This study included 2,600 people over the age of 59 and followed them for 12 years, monitoring their physical fitness, obesity and mortality. Participants were ranked for fitness based on how long they could walk on a treadmill as the incline increased. Online fitness course measures of overweight included body mass index (bmi), waist circumference and body fat percentage.

