There has been a 72% increase in the number of victims with strain injuries, caused by overuse of Wii or iPhone, according to osteopaths.
Neck injuries and headaches are common complaints during the season.This was evident in the huge numbers of patients at the London clinic.
"The Christmas period is the obvious time, particularly this year's longer-than-usual break, when people spend more time entertaining themselves at home." said Manoj Mehta, head of clinic and osteopathy at the British College of Osteopathic Medicine.
He added: "Do not ignore the warning signs - the twinges that occur whilst you're playing these games serve as a warning. It is important that, if the ache or pain does not ease off after gentle stretching, the person seeks the advice of a GP or osteopath."
Extreme usage of iPhone can also trigger problems. It is important that victims of strain injuries do stretching exercises before playing sports games such as tennis.