When Turkish researchers surveyed 200 men, they found that those with a higher BMI and an obvious belly lasted an average 7.3 minutes in bed; men in the slimmer group lasted just 2 minutes, and were more likely to suffer from premature ejaculation. The reason is probably reduced testosterone, which often goes hand in hand with obesity. However, while large men may last longer, they may struggle to get it up in the first place: being overweight is also associated with erectile dysfunction. Source: International Journal of Impotence Research

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