Why do I sometimes feel depressed for no reason?

Mild depression is quite common. We all have periods in our lives when we feel sad, and have trouble shaking it off. It may not seem like a big deal, but if we let mild depression fester, then it can diminish our health and quality of life.

With everything that’s going on at the moment, our mental health is under greater threat than ever before. Lifehack.org offers an interesting look at why we sometimes feel mildly depressed for no apparent reason, as well as some tips for dealing with the blues when they arise.