Most speed limits are set by state or local statute, although each state allows various sub div isions to set a different, generally lower, limit. The highest speed limits are generally 75â80 mph (120â130 km/h) in western states and 70 mph (115 km/h) in eastern states.
1 Ecstasy: This drug is very popular among the dance club scene and is now being marketed to kids, using cartoon character stamps. 2  With its designs and cheap prices, this stimulant has, unfortunately, become a popular pastime.3  Inhalants: The presence of inhalants has become another danger in most teenage homes.arents need to talk with their kids about drugs, and warn them about the severity of these substances. Perhaps with a little more time and effort spent on awareness, education and prevention, these trends wonât continue to surface among our teens.
Marijuana. Marijuana (cannabis) is the most commonly used illicit substance. This drug impairs short-term memory and learning, the ability to focus, and coordination. It also increases heart rate, can harm the lungs, and may increase the risk of psychosis in vulnerable people.n recent years, Monitoring the Future, the NIDA-funded annual survey of drug, alcohol, and tobacco use in 8th-, 10th-, and 12th-grade students, has shown persistently high rates of marijuana and nonmedical prescription drug use in our Nationâs teens.