Ridge was a star football player in high school, had a lot of friends, was funny, and was planning a career in agriculture when he left for college. However, according to his mother, Pattie, college was a “disaster.” She says Ridge experimented with drugs and was put through a severe hazing incident, and he is no longer the same person. She says the now 25-year-old has tics, can’t hold a conversation, and has unpredictable behavior.
 
Dr. Daniel Amen, a double board-certified psychiatrist, director of the Amen Clinics, and New York Times best-selling author who recently released You, Happier: The 7 Neuroscience Secrets of Feeling Good Based on Your Brain Type, joins Dr. Phil on Friday’s episode to weigh in with his thoughts.
 

Dr. Amen discusses Ridge’s symptoms and how they could be the result of traumatic brain injury and drug use. Hear his explanation in the video above.
 
This episode, "'From Football Star to Manic Episodes: Can My Son Be Helped?'," airs Friday. Check local listings to see where you can watch.

WATCH: Dr. Phil Explains To A Mom Why Her Son May Be Exhibiting Unusual Behaviors

TELL DR. PHIL YOUR STORY: Hopelessly in need of Dr. Phil's Help?