He said it was clear that family breakdown was also taking its toll.
"It is as much about the problems arising from family breakdown as the event itself. Young people don't like being in different homes on different days of the week and get upset by strife between their parents," he said.
An accompanying poll also showed that most adults believe that children these days are not as happy as the kids of their own generation.
The GfK NOP poll found that only nine per cent of adults thought that present-day children were happier than the children of their own generation, while 55 per cent said that they thought that present-day children were less happy.
About 29 per cent of the people surveyed blamed family breakdown for making children unhappy, while 23 per cent said that peer pressure accounted for the problem.
Several people also said that the deteriorating mental health amongst children was attributable to computer games, television, and a lack of physical activity.
The Government, however, played down the findings.
"Our families and children's survey showed that most young people in Britain say that they are healthy and feel good about themselves," Children's Minister Kevin Brennan said.
"That doesn't mean that there aren't problems. That is why we issued our children's plan, which aims to make this the best place in the world to be a child," Brennan added.
Source-ANI
SPH/L