If you have a normal weight (BMI: 18.5 to 24.9) in your 30s, don’t be afraid to gain a few extra pounds in your 50s. According to a recent study, it may help you live longer.

The study investigated an influence of BMI on the risk of death of people between ages 31 and 80. The researchers found out that participants with a normal weight who gradually gained some pounds while getting older, lived longer compared to those, who maintained their normal weight throughout their entire life. On the other hand, people who were already overweight or obese in their 30s, by getting heavier with age, had the highest risk of dying early.

The researchers believe that an extra few pounds in old age might provide protection against nutritional and energy deficiencies, metabolic stresses, the development of weakness and frailty, and loss of muscle and bone density caused by chronic diseases. But too much weight may lead to a bunch of health problems, such as high levels of cholesterol, blood pressure and blood sugar.

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