If you've spent years dieting, tracking, exercising, and still struggling with your weight, effort may not be the missing piece. Genetics, hormones, environment, and behavior all influence weight regulation, which is why effective treatment can require more than simply trying harder.

Just when you thought getting a handle on your weight was a giant puzzle, Dr. Allison Holgerson, a clinical health psychologist, swoops in with some clear answers. Let's dive into...