NEW HAVEN, Conn. (WTNH) – In the United States, migraines affect nearly 40 million people.

Recently, researchers with Hartford HealthCare’s Headache Center performed the largest study to date looking at their patient’s use of cannabis and its effect on their headaches.

A headache medicine specialist with Hartford HealthCare’s Headache Center, Dr. Aakash Bhargava, joined News 8 at noon to talk about the study.