The most common line is that every biceps curl and squat rep you do in a workout will rip or tear your muscles—then your body repairs the damage as you recover, resulting in new muscle growth.

Why do we have such an obsession with true crime? There’s no denying the genre is captivating, drawing you right into the real-life stories of murders, kidnappings, strange disappearances ...

Newsweek magazine delivered to your door Newsweek Voices: Diverse audio opinions Enjoy ad-free browsing on Newsweek.com Comment on articles Newsweek app updates on-the-go ...

DNA damage and repair refers to the creation and correction of DNA lesions that threaten genome integrity. Because DNA replication errors or environmental agents that damage DNA can introduce ...