<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Which drugs are most popular with people under 18?
<|assistant|>
The most popular drugs used by people under the age of 18 include marijuana, ecstasy, amphetamines, opioids, and inhalants. Additionally, alcohol, cigarette smoking, and legal highs are also common among young drug users. 

Marijuana is the most widely used illegal drug among youth in the United States. The percentage of 8th and 10th graders who reported using marijuana in the past year increased from 6.5% in 2009 to 7.8% in 2018.

Ecstasy, or MDMA, is popular in clubs and parties, but usage is declining among young people. About 15% of 12th graders reported using ecstasy at least once in their lifetime in 2018.

Amphetamines like Adderall and Ritalin are often taken for non-medical reasons to boost energy, attention and focus. About 7.1% of 12th graders surveyed in 2018 reported using amphetamines at some point in their lifetime.

Opioids such as heroin, fentanyl and oxycodone are also highly addictive and dangerous drugs frequently misused by young people. Roughly 5.2% of 12th graders reported using opioids in their lifetime in 2018.

Inhalants, which include chemicals found in spray paint, glue, aerosols and cleaning fluids, are the most commonly used type of substance among younger teens. About 7% of 8th graders and 5.5% of 10th graders reported using inhalants in their lifetimes in 2018.