New research finds that more men have suboptimal testosterone levels than previously known, and it may be putting these men at risk.

A small new study examining widespread pain relief after weight loss could have new implications for treating pain in people with obesity.

An evidence-based wellness program for middle schoolers has recorded many healthy improvements. In a new paper, experts share lessons learned.

As more Americans turn to bariatric surgery for weight loss, a new study suggests they may not want to wait until their BMI exceeds 40 to reap the biggest benefits.

Nearly 1 in 5 patients with a lap band undergoes multiple device-related reoperations, and complication rates range widely among hospitals, new research finds.

A higher BMI means a lower chance of a good-quality death, a new study of people with and without obesity finds. That also means higher costs for the Medicare system.