For the first time in history, more children are obese than underweight, a shift UNICEF says is putting millions of kids at risk of life-threatening disease. The UN agency’s analysis, which covered ...

BARCELONA, Spain—Adding a new wrinkle to the so-called obesity paradox, data from more than a million catheterizations in the United States confirm not only that overweight and obese people have ...

In a review of adults with type 1 diabetes (T1D), having a body mass index (BMI) <18.5 kg/m2 increased the risk of all-cause mortality by 3.4 times compared with normal BMI. Among patients with type 1 ...

Low body weight in young women has been linked to a range of health concerns, including disrupted menstrual cycles, infertility, weakened immune function, and a long-term decline in bone density.