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 ...

MrBeast's latest video—titled "Lose 100 LBs, Win $250,000!"—took a tragic turn after the fitness trainer featured in it unexpectedly passed away.

Majd -- to lose 100lbs by living in a gym for a year with the help of personal fitness coach Tyler Wall, his coach dies two months into the challenge.

If you had a chance to win a quarter million dollars, how would you react? A man named Majd was put to the ultimate test by YouTuber MrBeast: he had to lose 100 pounds and spend a year at the gym. The ...