How Does Someone Get Depressed for No Reason?

Question by Kevboy: How does someone get depressed for no reason?
Multiple online “credible” resources say that. How is that possible?

Best answer:

Answer by Demonic
Depression is an imbalance of chemicals in your brain. That’s why it’s possible. :)

Answer by Hagen
It’s very common and is often due to chemical imbalances in the brain. It can usually be cured by administering drugs to counter the imbalance.

[Update] Gardensallday – explain to me how injections of serotonin provide 100% cure in many cases.

Know better? Leave your own answer in the comments!

Depression – help online – This is a PSA I had to create for a theology class. I OWN NOTHING! No copyright infringement intended! I found the pictures on Google Images. I do not own the site mentioned at the end. The song is a clipped and editted version of “Never Too Late” by Three Days Grace. Enjoy!

Health beat: Online help for mental health
But two Minnesota health groups have created a free online program to help patients make and track their progress while they're under a doctor's care. The Help and Healing toolkit for depression (www.startribune.com/a2005) was introduced this week by … Read more on Minneapolis Star Tribune

Does Religion Help You Quit Smoking?
Although rates of smoking have dropped dramatically in recent decades, this behavior still represents a significant health problem for many people in society, and depressed women in particular. … Advance online publication. doi: 10.1037/a0031195 … Read more on GoodTherapy.org (blog)

Experts Debate Use and Misuse of Antidepressants
Two experts confront this topic in the online version of the British Medical Journal. According to … Those guidelines do not support the use of antidepressant medication in mild depression, or even as first-line treatment of moderate depression … Read more on PsychCentral.com