Why is it when you are depressed you simply can't see any way out?
Why do things always appear at their worst, even if you know things look better at other times?
The reason is that depression exhausts your brain, and so makes you interpret reality in black or white, extreme and negative ways.
Depression, or 'nervous exhaustion'
Depression is exhaustion brought about by an incredibly stressful or emotional time. Over-worrying and over-analyzing, inward-looking negative rumination all cause and maintain depression.
One way to get a quick break from this onslaught is to get deep relaxation. This can give your brain the rest it needs and partially restore your depleted resources. Regular relaxation can help lift depression as part of a wider depression treatment program.