Heavy Smartphone Use Can Lead to Hand and Wrist Problems!
If you are a heavy smartphone user and experience wrist pain, you may want to reduce your reliance on handheld devices. Researchers examined the wrists and hand complaints of 102 adults and found that those who spent the most time interacting with their devices had enlarged median nerves in their dominant hand, reduced pinch strength, and reduced hand function when compared with low/non-smartphone users.
Muscle & Nerve, April 2015