According to a report from the World Health Organisation (WHO), when it comes to abusing alcohol and drugs, British teenagers are right up there, with Wales at the top of the league, ahead of Scotland, Estonia, England and Lithuania.
The survey 'Health Behaviour in School-aged Children' is based on the experiences of 250,000 teenagers age 11, 13 and 15 from 41 countries across Europe and North America, which examined aspects of health, including drinking, weight, smoking, school pressures and bullying.
Carried out in the year 2005-6, the survey revealed that more 15-year-old girls in Wales had tried cannabis than anywhere else in Europe and one in five 11-year-old girls in Wales are trying to lose weight, as are a quarter of 13-year-olds and nearly a third aged 15.
It was also found that more than a third of 15-year-old girls and a quarter of 15-year-old boys in Wales say they tried smoking at 13 or younger, figures similar to Scotland but higher than England.
The survey found children in England and Wales were under more pressure than almost every other country which took part and across the UK rated their own health "poorly" compared to other countries - they also found communicating with their parents difficult.
Welsh health authorities say reducing the underage consumption of alcohol is a key priority in tackling an increasing culture of binge drinking in Wales which leads to an increased risk of injury, unsafe sex, and serious health issues in later life.
A 10-year substance misuse strategy launched in February will focus on the inappropriate and risky use of alcohol.