i think it's kind of simple. Our emotions affect our body. It's one system. If you guys can remember, you know that feeling happy, you know you can feel that in your body too. If you're anxious you feel that in your body. Chemicals in our body make us feel certain ways, but real life events trigger these emotions/chemicals. Depression in my opinion is when your inner, "real" self is under oppression. If you can express yourself even to yourself, you will not become depressed. But it might just be my case, I don't want to generalize my theory. Based on a half-hungarian psychologist and psychiatrist, Andrew Feldmar, there shouldn't be diagnoses made such as "bipolar" or "depression". Because there is no physical cause for it. it's emotional. And he says doctors can only cure the body. Your soul can only be cured by yourself, perhaps by expressing yourself. It can't be cured by doctors. that's why he doesn't call it a disease or an illness. I agree with this theory.

It's also hard to talk about depression as a state that could be "inherited" from our parents. As far as I'm concerned, anxiety can be genetically in us. We can be more anxious. and anxiety triggers depression, and makes it much worse.

But it's always hard to tell whether you actually "biologically" or "genetically" inherited something, or you just learned it as a behaviour from your mom and dad who you see being totally anxious about little things too.

In my opinion the most you can do in fighting depression, is to get to know yourself as much as you can. And after you're done with that (which is probably an entire life learning process) you can try and blame it on biology and genetics.

Depression is a vicious cycle, and maybe that's why we need chemicals, because the depressed state itself triggers depression. For me, AD helps with only that, I guess. That's the only thing that it's doing for me, is that I don't feel that this is gonna last forever, I feel if I work hard, I will get out of it. So it gives me hope. But I do go to therapy and maybe that's what's giving me hope.
Hope is really really important.