A study in the Lancet says that Cognitive behavioural therapy (CBT) can reduce symptoms of depression in people who fail to respond to drug treatment. 
Psychologists are cunning and have their own way of distorting the truth. And the truth is, as the same article says that up to two-thirds of people with depression do not respond to anti-depressants. So psychologists have to turn to reality in order to solve the problems their “science” cannot solve: they use things all ordinary people do every day and just tag them as a “scientific” method with a difficult name and… voilà! There you have Psychiatry! Because a psyciatrist cannot even imagine that a problem of the mind cannot be solved outside the boundaries of the “scientific method”…
In simpler words: Talking cuts depression.
And really: Who needs a study to know that? Go out. Talk with your friends. We are all alive and we are all going to die. We are in this together.
Related article: The dictatorship of the science of psychiatry