So I want to conclude with two things.
I want to conclude with a worry,
and with a wonderful story.
The worry is about antidepressants.
Over 100 million prescriptions
of antidepressants
are written every year
in the United States.
And these drugs are going generic.
They are seeping around the world.
I know one girl who's been
on these antidepressants,
SSRIs, serotonin-enhancing
antidepressants -- since she was 13.
She's 23. She's been on them
ever since she was 13.
I've got nothing against people
who take them short term,
when they're going
through something horrible.
They want to commit suicide
or kill somebody else.
I would recommend it.
But more and more people
in the United States
are taking them long term.
And indeed, what these drugs do
is raise levels of serotonin.
And by raising levels of serotonin,
you suppress the dopamine circuit.
Everybody knows that.
Dopamine is associated with romantic love.