Updated

Former Browns quarterback Bernie Kosar says he has finally found a treatment to ease years of pain from concussions he sustained during his NFL career.

Kosar said he had more than a dozen documented concussions as a player. After more than a decade of constant headaches, insomnia and slurred speech, Kosar said he began to feel better following just a few weeks of treatments with Dr. Rick Sponaugle, who has a wellness institute in Florida. Kosar said he was skeptical about Sponaugle but he's now convinced the complex therapy, which involves nutritional supplements, works.

Kosar has spoken to NFL Commissioner Roger Goodell about Sponaugle's "groundbreaking" treatments. Kosar hopes to help other former players who are suffering from too many blows to the head. Sponaugle said the NFL is interested in his research.