PRAYAGRAJ, June 9 -- An 11-year-old boy fell unconscious and had to receive expert medical attention for a week after a teenager pressed his carotid artery during play, recently, in Kamalapur Deviganj village of Kunda tehsil in Pratapgarh.

After the child failed to recover, the panicked parents took the child to a neurosurgeon in Prayagraj, who had to treat the child for nearly a week to make him gain normalcy.

According to city-based neurosurgeon Dr Prakash Khaitan, who treated the child, dangerous online games on social networking sites, are accessible to children. They practise the tricks shown in the video on friends, sometimes injuring them.

"Ahmaan, 11, arrived in hospital last week. He was exhibiting symptoms of epilepsy. On enq...