Walking daily helps heart health, but staying fit after 50 may require more. A trainer shares weekly targets and upgrades.

Aging doesn't have to mean slowing down. Discover how a strategic mix of interval training and heavy lifting can naturally boost testosterone and bulletproof your joints.

This is read by an automated voice. Please report any issues or inconsistencies here. Hitting 50 isn’t the beginning of the end. It’s the start of a new chapter. I should know. I started CrossFit aged ...