Many gyms and fitness facilities have offered unique weight-loss challenges with their own twists. It's also not uncommon to see specific exercise groups or even friends decide to partake in the ...

In this video, Mikhail Varshavski, DO, who goes by "Dr. Mike," gives his honest reaction to YouTube superstar MrBeast's recent weight-loss challenge video. Following is a partial transcript of the ...

Here’s why this alternative to the 75 Hard challenge may be a more sustainable approach to weight loss and improved fitness.

Jimmy Donaldson — also known as MrBeast, the most popular YouTuber with more than 400 million subscribers — is known for challenging contestants to out-of-the-ordinary tasks to win thousands of ...

A gym’s Porsche weight-loss challenge sparked backlash due to the extreme guidelines required over just a three-month span. A gym in China offers a Porsche for losing over 110 pounds in three months.