Conducted by Lilavati Hospital, the study said 79 percent of the population between the age group of 18 and 44 have their cell phones with them almost all the time, with only two hours of their waking day spent without their cell phone on hand.

India has the world's second highest mobile phone users with the figure standing above one billion.

"People working on computers most of the day, like software professionals and bank employees, are also prone to feel pain and slight numbness in their neck and shoulders," said Nirad S. Vengsarkar, orthopaedic surgeon at the hospital.

Due to the overuse of phone, instead of a normal forward curve, patients can be seen to have a backwards curve which can be degenerative, often causing head, neck, shoulder and back pain, said the study.

"The condition can also result in emotional and behavioural changes as the stress can affect the release of happy hormones," said the study.

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