American Vinny Mauri, who runs most of his miles at his local gym, is a top contender in Sunday’s Chicago Marathon.

Steve Cardillo takes working out to another level with a series of extreme and bizarre fitness challenges. The fitness fanatic is used to pushing his body to its limits, but his workouts are anything ...

Add Yahoo as a preferred source to see more of our stories on Google. Steve Cardillo takes working out to another level with a series of extreme and bizarre fitness challenges.The fitness fanatic is ...

Researchers have known for decades how to prevent and treat heat illness, but a patchwork of policies has left players like ...

Sylvester Stallone revealed his unhealthy obsession with extreme leanness and steroid use while preparing for Rocky III, ...

Chris Hemsworth is getting back into superhero shape, but this time he’s doing it a little differently. The actor is currently filming Avengers: Doomsday, and ...

How this astronaut, prisoner and soldier maintain their fitness in such extraordinary circumstances ...

Prime Day shoppers have a new deal to watch: Mineral Ice Extreme's menthol Pain Relief Spray is on sale for the first time.

Carl Daikeler lost 15 pounds by swapping breakfast for a 250-calorie shake and eating a big salad for lunch, then enjoying ...

Back in 1990, Italian mountaineer Marino Giacometti and his friends took mountain running to extreme heights by charging up ...

Dmitry Nuyanzin, 30, decided to eat 10,000 calories a day - nearly four times the recommended 2,500 daily intake for men.