Do you crack your knuckles? For decades, warnings about possible harm have caused concern about the habit — here is what the research says.

Here are six behaviors that habitual knuckle crackers tend to share. Some people internalize stress. They ruminate, spiral, ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. It’s an age-old tale: A knuckle-cracking lover and hater enter a ...