The use of smartphones has been linked to posture problems. People tend to hold cellphones a certain way, which usually involves a slighty hunched over posture. This posture can strain muscles in the neck and upper back. Dr. Alton Baron, an orthopedic surgeon at St. Luke's Roosevelt Hospital, told CBS News, "We are straining our muscles, both in our necks and our upper backs and our shoulders to accommodate the farthest position and then we spend so long doing it."
