You are trying to access subscriber-only content.

If you are a subscriber, log in here.

If you are not a subscriber, or are only subscribed to the print edition, click here to subscribe now. Digital subscribers have unlimited access to our magazine articles and more!

Staying Fit Should Be Fun! Variety in physical activity decreases boredom and increases motivation, because each activity is a new challenge. Variety may also help reduce the risk of injury. Exercise becomes more balanced, and you are not always exercising the same muscles the same way. To steer you toward different options, this Special Report […]