Marijuana is one of the most frequently abused illicit drugs in the United States, according to the National Institute on Drug Abuse website. Green and leafy, the plant is dried and then rolled in cigarette papers or packed into a pipe for smoking. You may find seeds or stems if someone has recently used marijuana. But if you don't see physical evidence, you can observe several behavioral signs that someone has been smoking pot.
Behavior
When a friend has been smoking marijuana, you may notice he withdraws from certain family members, and possibly some of his friends who do not use drugs, according to TeensHealth. He may also become secretive about a new group of friends if they also use drugs. He will be reluctant to discuss where he's going and what he's doing. Withdrawal and secrecy can stem from him being afraid someone discover he is smoking pot. He also may not be as interested in school functions or sporting activities he once enjoyed.
Mood Swings
When someone has been smoking pot, she may exhibit sudden mood swings of irritability, anger, depression and anxiety. She also may to be going through symptoms of withdrawal if she is craving marijuana, according to the National Institute on Drug Abuse. Symptoms of withdrawal often peak within two to three days after abstinence.
Inpaired Judgment
People who smoke marijuana often have impaired judgment, according to the National Institute on Drug Abuse website. Suddenly, his ability to think clearly becomes clouded, or he's more clumsy than normal. If he is smoking pot, you may notice a decline in his grades or work performance. His cognitive skills will begin to decline, and his life achievements will begin to suffer. He once may have wanted to attending college, but suddenly became uninterested in a degree. A spike in poor attendance may result from the impaired judgment, according to TeensHealth.
