Veteran actor Christopher Walken pulls his hair daily because he thinks this will help keep baldness at bay.
Yanking at his hair has been a part of Walken's routine ever since he read that the activity gave late US president John F. Kennedy attractive hair.
"President Kennedy had this great hair, and I read that somebody came and massaged him because he had that back problem, but he would also get his hair pulled," Contactmusic quoted him as saying.
"As men get older, the skin on their heads tightens and the blood gets constricted. Apparently, if you keep your scalp skin loose, you're more apt to keep your hair. So I just grab it with both hands and yank on it while I'm watching the news," he added.