Here's the average human brain.

One big lump of gray matter, right?

Well, your brain is really made up of a bunch of different parts.

And millions of signals are being sent to those different parts through nerve cells.

This little gap here, between the nerve cells...

That's called the synapse.

The nerve cell releases natural chemicals called neurotransmitters that travel across the synapse and tell the nerve cell on the other side to keep the signal moving to the part of the brain where it's needed.

When people have depression, those cells don't recognize the neurotransmitters very well...

So not as many signals keep moving.

And when those signals can't reach the part of the brain where they're needed...

It can be hard to appreciate the things that usually make life worth living.

And without those things...

Life can feel empty and meaningless.

Keeping those signals moving...

That's where depression medicine helps.

The medicine goes right to the synapse and helps your nerve cells recognize those neurotransmitters.

That helps the signals get to the right part of your brain.

It can take a few weeks for the medicine to start helping.

But with time, your brain can get back in balance.

And you can enjoy things more.