True, but I wouldn't expect them to get into the neurochemistry aspect of it because no one would stay around long enough to figure out what they were trying to say.

Also, that's not from the drugfree.org site. That's just some random website.

http://checkyourself.com/fivemyths.aspx

Which I'm assuming is where you got that from, but if it isn't, nevermind.

The rest of his points weren't even arguably correct.

\3. MYTH: Marijuana Isn’t As Bad As Cigarettes TRUTH: Nope, sorry. Pot actually contains many of the same cancer-causing chemicals found in tobacco. Puff for puff, smoking marijuana may increase the risk of cancer more than smoking tobacco does.

Therefore, if you smoke pot regularly, you may experience the same breathing problems as those who smoke cigarettes. To put it plainly, walking up flights of stairs will seem difficult, and if you’re an athlete -- that unattractive wheezing and coughing caused by excessive smoking won’t look so hot (or feel so good) on the playing fields.

\4. MYTH: Driving While High is Safer than Driving Drunk TRUTH: Hardly. In a study reported by the National Highway Traffic Safety Administration, even a moderate dose of marijuana was shown to impair driving performance, since it affects alertness, concentration, perception coordination and reaction time – essential skills required for safe driving. Researchers also found that 17% (1 in 5) of crash victims under the age of 18 tested positive for marijuana.

\5. MYTH: I Can Smoke Pot and Still Get Straight A’s TRUTH: Hey, anything is possible – but there has been a lot of research done that states the opposite. Researchers have found that heavy marijuana use may be especially problematic during teens’ peak learning years, when the brain is still developing, since smoking pot can impair your ability to concentrate and retain information. This can cause poor academic performance. You might think you’re doing well in school – but you’ll never know if smoking pot is inhibiting your true academic potential.

This from number 3 is correct "Pot actually contains many of the same cancer-causing chemicals found in tobacco," but he made a false correlation that has been disproved in more recent studies.

Number 4 is just completely wrong, those studies have all shown that the largest dose of marijuana was equivalent or less than equivalent to low to moderate doses of alcohol. Maybe what he stated was true, but he was completely wrong in declaring the "myth" was incorrect.

Same for number 5. Not only is smoking cannabis and getting Straight A's possible, it's easy if you are already a straight A student. Sure, many people say that cannabis use can mess up brain development in teens, but it won't stop them from doing well in school unless they abuse it. It might have bad long-term consequences, but I'm not sure what those might be (I'm sure they exist, but I don't know what they are) because I've never seen any science behind it except for a study saying chronic teen cannabis users are twice as likely to become schizophrenic.

Some of the stuff he brought up was true, but he used those to try to prove untrue points.