The Biggest Loser trainer Bob Harper came perilously close to death when he suffered a heart attack in February 2017. The shocking health scare was seemingly unimaginable for Harper, who spent 18 seasons training contestants on The Biggest Loser to make their physical and emotional health a priority.

Michaels, 51, alongside Bob Harper, 60, was one of the personal trainers on the NBC reality show, which aired from 2004 to 2016, following obese people as they attempted to lose weight as quickly as possible using only diet and exercise for a $250,000 cash prize.