Studies have shown that illicit drug abuse correlates more strongly with disintegration of the family than with poverty. A study published in the Journal of the American Medical Association found that teenagers who reported feeling close to their families were the least likely to engage in any of the risky behaviours studied, which included drinking and smoking marijuana or cigarettes. There are quite a lot of such myths. Marijuana smoke contains some of the same cancer-causing compounds as tobacco, sometimes in higher concentrations. It's okay to use marijuana as long as you're not a chronic user.
Occasional use can lead to frequent use.
Because sniffing powdered heroin doesn't require needles, it isn't very risky. Heroin is dangerous no matter how it's ingested. Once addicted to heroin, users may eventually switch to injecting the drug because it's cheaper. Drug use is extremely unpredictable and affects people differently. Anyone can become addicted to drugs.