Low BMI linked to early menopause

Yoyo dieters are also at risk, but researchers aren't sure why

Young, underweight women are at greater risk of early menopause than their normal weight or overweight peers, according to a 22-year study including data on almost 80,000 women.


But researchers are unsure why.

They found that those who were underweight at age 18 had more than 50% higher risk for early menopause (before the age of 45) compared with those of normal weight.

Significantly, women who were underweight at 35 had nearly 60% higher risk.

Repeatedly gaining and losing weight through yoyo dieting was also linked with higher risk.