- [Narrator] You've probably already
heard about cannabidiol,
better known as CBD.
It's exploded in popularity with claims
of treating everything
from insomnia to diabetes.
- That's the only thing that would help me
with my migraine headaches.
- [Narrator] It can be consumed as an oil,
applied to skin, or inhaled it as a vapor.
We know CBD is a component of marijuana,
but it's derived from hemp,
usually does not contain THC,
and won't get you high.
The game changer for the
CBD industry came when
President Trump signed a farm bill
legalizing hemp cultivation.
One prescription drug
containing CBD has been approved
for treating two rare forms
of childhood epilepsy,
but the vast majority of
what we know about CBD
has been limited to personal experiences
and unproven animal studies.
- More often than not, things
that look good in animals,
when you go into humans,
those effects aren't there.
- [Narrator] According to a
2018 Harvard Health Blog post,
scientists say they still don't know much
about how CBD affects the brain
or which doses and
delivery methods work best.
For example, if you put a few drops of CBD
under your tongue, you
might consume 10 milligrams.
But some researchers say you
would need 30 times that amount
to reach a threshold
that can relieve stress.
And since CBD products
are primarily marketed
and sold as supplements,
the U.S. Food and Drug
Administration doesn't evaluate
whether these products
are safe or effective.
That means if you buy a CBD
product, you don't really know
how much CBD is actually in the container.
There's no denying the
CBD revolution is upon us
and the marketplace is buying in.
However, there's still
a lot of TBD about CBD.
