Smartphone overuse may cause inflammation in your thumb

People who use their smartphones heavily to text and email may wind up injuring their thumbs, since that's the go-to typing finger for many people.

As a physician at the Philadelphia Hand Center told TODAY, overuse may cause inflammation in the area — which can lead to aching, cramping, and throbbing — or even osteoarthritis.

The physician said the best treatment is usually rest and ice.