The Hanoi-based National Institute of Mental Health Wednesday said they are treating a 17-year-old boy who was hospitalized on June 12 for online game addiction.
The eleventh-grader's father said his son, N.A.D., had since the end of May, when his summer vacation began, spent all the time playing games without sleeping and eating properly.
They sent him to the institute as he showed symptoms of fatigue, short-temper and weight loss, the fathers said, adding that D. had started playing games when he was in secondary school.
Nguyen Minh Tuan, deputy chief of the institute, said several patients, mainly students, have been hospitalized recently with the same symptoms.
They were prone to anxiety attacks and become irritable if they don't play the online games, he said.