Rock on the balls of your feet, keeps your balance better and helps keep my calves in good shape.

Fidgeting burns calories if you're stuck at a desk.

those stress balls are good and so is sugar free gum burning calories and keeping you from getting drowsy.

toss in a few set of 20 rep pushups a day.

Stretching is also underrated, limber muscles are less likely to get damaged, if those big ol' NFL line backers can touch their toes, so can you.