Two tiny groups of brain cells, right next to each other, play a key role in driving feeding — and stopping. The brain’s own opioid system also gets involved.

A new study in mice finds that absence of a regulatory brain protein could hold the key to stimulating healthy weight loss.

One key to a healthy weight may lie deep inside the brain, in the endoplasmic reticulum of cells that produce the “grandfather” of appetite-regulating hormones.

A new study finds that obesity-prone rats respond more strongly to food-related cues, including specific changes in cells of the same brain area linked to addiction.

Caregivers of children with obesity were more than 90 percent more likely to use direct statements to prevent children from eating junk food, according to a new study.

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.