It is not uncommon for people from all walks of life to feel sad or lonely at times. Everyone at one time or another will have the blues, but you may have depression. Depression is a medical condition that requires help and is much more serious than being in a slump.
The World Health Organization (WHO) has estimated that 350 million people worldwide suffer from some form of clinical depression. It’s far more common in women than in men, and children also are affected by it.