Jennifer Lopez is known as much for her sculpted physique as she is for her music, movie roles and romantic partners. Her former trainer, Jay Cardiello, revealed to The Post how he helped J.Lo achieve ...

Learn how to combine cardio and strength training into one workout to get the most bang for your buck, according to fitness experts. If seeing “cardio day” on your calendar makes you shudder, you’re ...

Sharing gym machines sounds simple enough, but it can get tense fast when expectations clash. One gym-goer just wanted to finish his sets without interruption, but one impatient stranger was ...

Sign up for CNN’s Fitness, But Better newsletter series. Our seven-part guide will help you ease into a healthy routine, backed by experts. Working one-on-one with ...