He is abusing the drug Marijuana which causes the problems Issac is dealing with.
Answer:
1. Drug addicts, especially intravenous drug users, are at risk of overdose every time they use drugs. Many people who died of drug overdose did not even have time to pull out the syringe. Statistics show that deaths from overdose are more common among younger people.
2. The cost of drug abuse is very huge, which often makes drug addicts lose their money. They often take risks to participate in various illegal and criminal activities in order to get money to buy drugs. In the process of engaging in these activities, the probability of killing each other has increased significantly.
