3. Weed and sex don't gel

Many teen-focused public-service ads warning about the perils of weed focus on the fact that it makes you antisocial, unable to talk to members of the opposite sex, and an overall dud in the sack. But Canadian researchers performing the most applied-for case study ever (probably) found that more than half of participants who had sex while stoned reported it as more enjoyable than regular sex. But studies have shown that some people -- men, exclusively -- might have some trouble **ahem** rising to the occasion after smoking too much.

4. Marijuana is addictive

This is an admittedly tough (and controversial) one. We all have the friend who "just can't function without weed, man!" But is there any real proof that it's actually addictive? Not really... or at least not in the way we commonly classify "addiction." Often, this kind of addiction is referred to as a "dependency," largely focusing on a mental attachment to the drug. People do get "addicted," technically, but a similar addiction could occur with chocolate, or driving race cars every weekend. A mental dependency has a lot to do with an individual's mental makeup and overall state of mind. So it's not fair to qualify marijuana as physiologically and inherently addictive like harder drugs (cocaine, heroin, etc.), even though some individuals can use marijuana with addict-like dependencies.

Around 9% of people who use weed heavily will grow dependent in their lifetime, as opposed to 15% of heavy cocaine users and 24% of heroin users.

5. Quitting smoking is easy

While there is no proof that marijuana is physically addictive (see above), anyone who has seen Half Baked knows that quitting pot can be a tall order for a heavy smoker. And it's not just about willpower. Frequent smokers -- like, very frequent smokers -- have reported withdrawal symptoms like irritability, insomnia, and appetite loss. While these pale in comparison to withdrawal experiences from other drugs, they're still worth noting. Generally, though, casual smokers should have nothing to worry about if they stop smoking cold turkey. Except not finding Family Guy funny anymore, which will probably happen.