Men lose weight easier, study: A class of hormones known as POMC peptides, which regulate body weight, acts differently in female mice than in male mice, according to a collaboration of researchers across four continents. The difference appears to make it harder for female mice to lose weight.

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Men lose weight easier, study: A class of hormones known as POMC peptides, which regulate body weight, acts differently in female mice than in male mice, according to a collaboration of researchers across four continents. The difference appears to make it harder for female mice to lose weight.