Hey, at 67, my hubby is doing squats with 100 pounds on his shoulders. More than any of the other college students (other than one young Greek god). He also shovels the whole block and walkways when it snows (and wished it snowed more, crazy I know). He works 5-6 days a week for Habitat for Humanity from right now until November. I think it all keeps him alive because otherwise he would just sit.