When an individual is addicted to drugs, he or she may do anything to obtain more, including risky behaviors such as stealing, lying, engaging in unsafe sexual activity, selling drugs, or crimes that could land the person in jail.
When people choose using or getting the drug over meeting work or personal obligations, this is a classic sign of addiction.
Develop unhealthy friendships
When people start using new substances, they may spend time with others who have similar habits. They may hang out with a new group of people who may encourage unhealthy habits.