17 addition, some methods of using marijuana (e.g., dabbing, edibles) may deliver very high levels of THC to the user. In many cases, marijuana is smoked in the form hand-rolled cigarettes (joints), in pipes or water pipes (bongs), in bowls, or in blunts—emptied cigars that have been partly or completely refilled with marijuana. Smoked marijuana, in any form, can harm lung tissues and cause scarring and damage to small blood vessels. Smoke from marijuana contains many of the same toxins, irritants, and carcinogens as tobacco smoke. Smoking marijuana can also lead to a greater risk of bronchitis, cough, and phlegm production. These symptoms generally improve when marijuana smokers quit. Marijuana use, especially frequent (daily or near daily) use and use in high doses, can cause disorientation, and sometimes cause unpleasant thoughts or feelings of anxiety and paranoia. Marijuana use is associated with temporary psychosis (not knowing what is real, hallucinations and paranoia) and long-lasting mental health challenges, including schizophrenia (a type of mental illness where people might see or hear things that aren’t really there). Marijuana use has also been linked to depression and anxiety, and suicide among teens. However, it is not known whether this is a causal relationship or simply an association. MDMA The following information on MDMA health risks is from the National Institute on Drug Abuse’s MDMA fact sheet. People who use MDMA usually take it as a capsule or tablet, though some swallow it in liquid form or snort the powder. The popular nickname Molly (slang for “molecular”) often refers to the supposedly “pure” crystalline powder form of MDMA, usually sold in capsules. However, people who purchase powder or capsules sold as Molly often actually get other drugs such as synthetic cathinones (“bath salts”) instead. Some people take MDMA in combination with other drugs such as alcohol or marijuana. HOW MDMA AFFECTS THE BODY MDMA increases the activity of three brain chemicals: • Dopamine: produces increased energy/ activity and acts in the reward system to reinforce behaviors. • Norepinephrine: increases heart rate and blood pressure, which are particularly risky for people with heart and blood vessel problems. • Serotonin: affects mood, appetite, sleep, and other functions. It also triggers hormones that affect sexual arousal and trust. The release of large amounts of serotonin likely causes the emotional closeness, elevated mood, and empathy felt by those who use MDMA. MDMA’s effects last about three to six hours, although many users take a second dose as the effects of the first dose begin to fade. Over the course of the week following moderate use of the drug, a person may experience irritability, impulsiveness and aggression, depression, sleep problems, anxiety, memory, and attention problems, PREVENTION AND EDUCATION PROGRAMS