Hi. Thanks for joining us as we expose the biggest myths in mental illness. Today's myth: a bad childhood causes mental illness.

I've discussed how I like to use the word "crazy" and don't find it derogatory. Us crazies, we have to stick together, I might say. I've also said that people can use any word to hurt you. Don't tell me you're a secretary. But some people use a mental illness diagnosis as a weapon. Some people insult and abuse with the facts of illness and treatment.

I've been wrong about a lot of things in my lifetime. Life is funny like that, always moving the ball when you're not looking. And one of them was this: I thought I was too smart to have a mental illness.

This week saw the passing of Schizophrenia Awareness Day and I think it's time to take a moment to learn some facts about this much stigmatized mental illness.

I hate shrinks. Shrinks should die. Shrinks are evil. (Thank the commenters (not an individual) for that.) OK I get it, you don’t like psychiatrists. Personally, I would find a more intelligent way to express an argument, but your point is clear nonetheless. You’re ranting. I get that. I rant. We all do. It’s a healthy expression of the frustration seen when dealing with so many things outside of our own control. But at some point you have to stop hating, wishing for murder and committing moral condemnation and actually do something useful.

In my last article on the biological evidence for depression I discussed evidence in genes, hormones, monoamines (like serotonin) and neuroimaging. Today I’ll finish off the research areas for the biological evidence of depression and suggest what I think all this biological evidence means.

Common messages spread by certain special interest groups are that “mental illness doesn’t exist” and “there is no biological evidence for mental illness.” It’s not surprising I take great exception with these claims. So do most doctors. But the brain is an extremely complex organ and refuting the above notions is hard. It’s not a two-word response. So, I’m going to attempt to give a two-part overview, in plain English, of some of the research around the biology of major depressive disorder according to a meta-analysis done in 2010 (see below).

I was recently having lunch with a woman who has a series of medical issues, including pain management. One of the medications she is on is oxycodone. She said she would like to get off of the oxycodone but when she has tried, the pain has been unbearable and no other pain medication would touch her pain. So I asked her, "if this medication is working for you and other medications don’t work, then why are you trying to get off of it?" She said it was because of the stigma attached to that medication. So I told her something important – you can’t let stigma make your treatment decisions.

There is a common refrain that if you looked in the DSM, everyone would have some mental disorder. And in point of fact, many symptoms are fairly generic and can be attributed to many. Fatigue, insomnia, thoughts of death, loss of pleasure and weight loss are part of the depression diagnosis. But the part no one seems to remember is what’s under that, The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.

Some people believe that being crazy makes you creative (perhaps brilliant) and being creative makes you crazy. Similarly, along this line of logic is that taking medication makes you uncreative and perhaps, un-brilliant. Well, pish-tosh I say.