Marijuana is the most commonly abused banned substance in the United States. The National Survey on Drug Use and Health found that in 2009 more than 28 million Americans, age 12 and older, had abused the drug at least once in the year prior to being surveyed. Past studies have reflected the adverse effects of marijuana to its users, but still, the problem of abuse is far from being resolved.
In one of our previous posts, we cited a Duke University study that says people who frequently use marijuana are at risk of slowing down their IQ. The finding may not be the scariest to date in terms of marijuana side effects, but it’s still worrisome. If you’re a parent, you’re aware how challenging it is to never be able to keep an eye on your children, especially the moment they go out of the house. If you’re raising an adolescent it’s even more difficult because it’s that time when peer pressure is at its strongest and experimenting with drugs may not be far from happening.
Aside from marijuana’s effects on intelligence, it could also wreak havoc on the user’s mental capacities. An Australian study involving 14- and 15-year-olds found that those who used marijuana weekly as teenagers were twice as likely to have depression as a young adult than women who did not use the drug.
Another study which assessed the participants for signs of marijuana abuse and symptoms of depression found that people who initially did not have depressive symptoms but abused marijuana were more than four times as likely to have depressive symptoms.
Marijuana use could also have some negative effects on hormonal system and reproduction. Similarly, it can cause physical problems, ranging from dry mouth and red eyes to increased heart rate and blood pressure.