Um... Cancer?
"Marijuana smoke has been found to contain more cancer-causing agents than is found in tobacco smoke." Plus
"research has shown that being a marijuana smoker is associated with a 70% increased risk for being diagnosed with testicular cancer. "
Also,
- It can impair the body's immune system, by affecting your body's ability to create T-cells.
- Both Short and Long-Term Memory Loss
- You "can develop many breathing problems, such as daily cough and phlegm production, more frequent chest colds, a heightened risk of lung infections, and a greater tendency toward obstructed airways."
[I knew this would come up, so I have already put some thought into this]
As far as I know, you can become addicted, in one way or another, to basically anything that makes you feel good. The debate, however, is whether it is a psychological addiction (basically a really strong habit), or a physical addiction, where your body actually develops a
need for it (also called "dependence").
The conclusion that I came to, from what I can tell based on what I've been told and what I've found is that, in a nutshell, it is probably both:
The best study I found that was on "2446 young adults aged 14-24 years at baseline was followed up over a period of 4 years" said that:
Another said confirms that many (but not all)
Albeit, many stipulated something along the lines of "There is limited evidence in favor of a cannabis dependence syndrome analogous to the alcohol dependence syndrome." But "remember that alcohol has a much greater potential for excess than marijuana does because of burnout, and I think that is at least a little worse than caffeine.