Everyone has felt sad or down at some time in their life as a result of life events such as a move to another city, loss of a job, medical reasons, etc. This is a normal part of life and it happens to all of us. Everyone has felt sad or down at some time in their life as a result of life events such as a move to another city, loss of a job, medical reasons, etc. This is a normal part of life and it happens to all of us.