It seems to fix everything for me.
Inhale that frigid breath of pure night air and exhale it, and imagine how cold and vast space is. Suddenly, the weight on your shoulders seems to escape with the evacuation of that same breath.
No explanations for your condition, just perspective...
Things are either infinitely more complex than you make them out to be, or your problems seem for a moment to be so simple and inconsequential that they are negated entirely.
Its good to forget how 'important' yourself and your problems are, and to disappear into appreciation of something far more important than yourself. Its cleansing beyond belief.