The World Health Organization has released a report examining the health behaviours in children aged 11 to 15-years-old in 44 countries, including Canada.
While smoking over all is on the decline among young people, Canada led all 44 countries when it came to youth smoking marijuana.
The study ranks Canada number one with 13% of young people here reporting marijuana use, and we also lead for youth who reported smoking pot at 13 years of age or younger.
Alcohol use is also on the decline, but the study notes drinking increases from ages 11 to 15-years-old.
The study also found sexually transmitted diseases are on the rise for teens.
At 15, girls are more likely to use the pill than boys are to wear a condom.
Skipping breakfast is prevalent among teens, girls are more likely to eat healthy, while boys are big on drinking pop with use increasing with age.