Loneliness

Loneliness is a complex and usually unpleasant feeling in which a person feels a strong sense of emptiness and solitude. The causes of loneliness are varied, but it can be affected by social, mental, emotional, and spiritual factors. It is a natural phenomenon, since humans are social creatures by nature. Loneliness has also been described as social pain — a psychological mechanism meant to alert an individual of isolation and motivate him/her to seek social connections.