"The Biggest Loser," a reality TV show in which contestants compete to shed the most weight, has been a huge win for NBC — now airing all over the world in its 17th season. It's also been a boon for obesity researchers, offering them an extremely rare opportunity to study the effects of intensive diet and exercise on a group of people trying to lose over 100 pounds on average. Related Why you shouldn't exercise to lose weight, explained in 60+ studies The newest scientific study to use the contestants as subjects, published today in the journal Obesity, sheds light on why it can be so hard for people who've gained a lot of weight to keep it off once they've lost it. It also suggests the...
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