what is sad?
Sadness is an emotion characterized by feelings of disadvantage, loss, and helplessness. When sad, people often become quiet, less energetic, and withdrawn.

Sadness is considered to be the opposite of happiness, and is similar to the emotions of sorrow, grief, misery, and melancholy. The philosopher Baruch Spinoza defined sadness as the “transfer of a person from a large perfection to a smaller one.”

Sadness can be viewed as a temporary lowering of mood, whereas depression is characterized by a persistent and intense lowered mood, as well as disruption to one's ability to function in day to day matters.

what is depression?
Depression is a mental health disorder that can affect the way you eat and sleep, the way you feel about yourself, and the way you think about things. A depressive disorder is more than a passing mood. It is not a sign of personal weakness, and it cannot be willed or wished away.

A depressive disorder involves the body, mood, and thoughts. People who are depressed cannot "snap out of it" and get better. Without treatment, symptoms can last for months or years. Treatments such as antidepressant medications and psychotherapy can reduce and sometimes eliminate the symptoms of depression.

sad and depression is just simply me. what can i do? hais