Teens who start using cannabis before age 15 are more likely to use the drug often later in their lives. They are also more likely to develop mental and physical health problems in young adulthood ...

Preteens using increasing amounts of social media perform poorer in reading, vocabulary and memory tests in early adolescence compared with those who use no or little social media. That's according to ...

Less than half of people experiencing homelessness regularly used illicit drugs in the prior six months. The most common drugs used by this population aren’t opioids but methamphetamines. And a ...