Teenagers who started using weed had slower gains in thinking and memory skills as they grew, researchers report today in the ...

A study of more than 11,000 teens finds cannabis use tied to slower gains in memory, focus and thinking speed as well as ...

According to a recently released study involving more than 11,000 teens who were tracked from the age of 9-10 until they were ...

(Willie B. Thomas/DigitalVision/Getty Images) A long-term study of more than 11,000 children and teens has linked ...

A large longitudinal study found that teens who begin using cannabis show slower cognitive development across memory, ...

Many teenagers underestimate the risks associated with cannabis. A long-term study involving nine- and ten-year-old children ...

Alcohol is deeply rooted in our cultures and habits, and in most Western countries, its significant economic weight grants it a much more favourable legal status and social perception than other drugs ...

Not only does positive parenting make for a happier family life, but it also enhances children’s cognitive, physical, social, and emotional development going forward. A recently published study shows ...

For decades, my colleagues and I advanced the premise that early substance use—nicotine, alcohol, or cannabis (or other addicting drugs)—interferes with critical maturation stages, particularly ...

Add Yahoo as a preferred source to see more of our stories on Google. New research shows that just 15 more minutes of rest can sharpen teen thinking skills and improve brain health, even without ...