My mother had been the proud owner of Cindy, a shepherd-collie mix with serious aggression issues and a pathological obsession with Ritz crackers.

NEWYORKER: A Box of Puppies

Dr. Michelle Collie, director of Performance Physical Therapy in Rhode Island, says she started seeing patients with head, neck and back pain caused by mobile devices six or seven years ago.

CNN: Your smartphone is a pain in the neck