Dr. Nandi looks at the surprising benefits for kids of thumb sucking and nail biting

Posted at 6:08 PM, Jul 11, 2016
and last updated 2016-07-11 18:08:14-04

Thumb sucking and nail biting in children are often associated with health problems, but there is a surprising upside.

Our Chief Health Editor Dr. Partha Nandi takes a look in the video player above.