Sleep Therapy Seen as an Aid for Depression

I would say one problem is a mismatch between a person's natural rhythms and their work schedule.
When I tried the suggestion of getting up on the weekend at the same time as during the week, it didn't change my body clock. I just got exhasted and sick.

http://www.nytimes.com/2013/11/19/health/treating-insomnia-to-heal-depression.html?partner=MYWAY&ei=5065

By BENEDICT CAREY
Published: November 18, 2013

Curing insomnia in people with depression could double their chance of a full recovery, scientists are reporting. The findings, based on an insomnia treatment that uses talk therapy rather than drugs, are the first to emerge from a series of closely watched studies of sleep and depression to be released in the coming year.

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