What is depression?

Depression is actually considered a disease.

It's because of the chemicals in your brain. According to doctors, it's because the levels of the chemicals are not balanced. That's why they presbribe antidepressants.

Do you belive that you are the way you are because of chemicals and all that fancy medical stuff?
I personally don't believe in it. I think that people are the way they are because of what they go through and what they gain through knowledge.