Weed's gonna kill us, it's a gateway drug.

Lying isn't funny.

Oh, no, for most people, weed is essentially harmless.

Whoa-kay, no way, Jose.

Look, I know this stuff

is a little overboard, but...

you can't tell kids weed isn't bad!

Of course I can. It's true.

And we've known it for decades.

Counting deaths from the substance alone,

alcohol kills 88,000 people a year.

Tobacco kills 480,000.

And marijuana kills absolutely no one.

(buzzer)

Uh, according to curriculum,

marijuana can get you hooked on harder substances.

It's a gateway drug.

Yeah, educators have been saying that for years,

but it's not true.

Most people who try marijuana

don't even continue smoking marijuana.

This dude knows what's up.

Now, that doesn't mean that it's perfectly safe.

Dude, I thought you were cool.

Oh, I wish! If you're under 25,

smoking weed can lead to memory problems

and poor cognitive functioning.

But if you're an adult,

and your brain has finished developing,

it's really your choice.

Adam, wrong way. Also, not in a school.

Sorry, I usually only smoke at parties,

and I'm rarely invited to them.

Yeah, wonder why.

The truth is, if you know the risks

and you use it in moderation, weed is no big deal.

And, in fact, humans have been using it for millennia.

Humans started growing cannabis as a crop over 8,000 years ago.

This crop will feed our family for a year,

and this crop will make movies way funnier.

(Adam) In 440 BCE, Herodotus wrote about

the ancient tradition of cannabis steam baths.

Fellow citizens, as a wise man

once told me, VapeLife! (laughing)

And in America, for many years marijuana was available in over-the-counter medications.

Step right up and try Professor Horkorium's Rejuvenating Tincture!

Now with the Arab hashish.

For most of America's history,

weed was legal, no one cared about it.