Researchers have found evidence supporting a genetic link between the receptor for the “body clock” hormone melatonin and type 2 diabetes. Previous studies have found that those who work night shifts were more likely to have the disease, and now it appears that those with a genetic mutation affecting the receptor of the hormone that regulates the body’s sleep-wake cycle have a higher risk of developing type 2 diabetes. Mutations in the melatonin 2 (MT2) gene could disrupt...
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