Experts have long known there is a genetic component to obesity, and a new study identified one particular gene that may be behind it.

Researchers believe they have discovered a new biological mechanism for obesity, pointing to rare variants on two genes that dramatically increase the risk of carrying excess weight.

New research finds that obesity can trigger genetic modifications within fat cells that allow the cells to store "memories" of being overweight in their nucleus and make it easier to regain weight.

Experts have long known there is a genetic component to obesity, and a new study identified one particular gene that may be behind it.

Obesity isn’t just a matter of food and exercise — it may be in your genetic code, according to new research.