Doctors have long known that there is a correlation between ADHD and obesity, both in childhood and adulthood, but a new study tightens the connection. In the latest research, researchers linked ADHD in childhood to later obesity in women, but not in men. This, taken in conjunction with other research and the clinical experience of hundreds of ADHD experts, suggests that ADHD is a risk factor for obesity, and that doctors should find ways to address that risk in their patients.