Electronic Device Overuse May Increase CTS Risk.

Among a group of 48 university students, researchers found that those who used their electronic device for more than five hours per day had a larger median nerve cross section in their dominant hand than participants who utilised their device less often. Heavy users were also more likely to report numbness, tingling, and pain in their dominant hand, symptoms commonly associated with carpal tunnel syndrome.
Muscle & Nerve, November 2017