the most common of all mental illnesses

Depression is the most common of all mental illnesses, afflicting an estimated 7 percent of the population.

a medical illness that involves the body, mood, and thoughts

Depression is a medical illness that involves the body, mood, and thoughts.

a mental health condition that affects millions of people worldwide

Depression is a mental health condition that affects millions of people worldwide.

a mood disorder that causes a persistent feeling of sadness and loss of interest in once enjoyable activities

Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest in once enjoyable activities.

a mental disorder

Just because depression is a mental disorder, doesn't mean depression doesn't have a real physiological basis.

a psychiatric disorder that affects mood, behavior, and overall health”

Depression (also known as major depression or major depressive disorder) is a psychiatric disorder that affects mood, behavior, and overall health.

the most common psychiatric disorder

Although depression is the most common psychiatric disorder, the most common psychiatric disorder's pharmacological properties are not well known yet.

the most common mood disorder all over the world

Depression is the most common mood disorder in the world and is currently ranked by the World Health Organization (WHO) as the second greatest cause of human suffering and disability.

a serious mental disorder that causes a significantly reduced quality of life

Depression is a serious mental disorder that causes a significantly reduced quality of life.

a mental health condition characterized by persistent feelings of sadness, hopelessness, and low energy

Depression is a mental health condition characterized by persistent feelings of sadness, hopelessness, and low energy.

a mood disorder associated with feelings of sadness and loss of pleasure in life

Depression is a mood disorder associated with feelings of sadness and loss of pleasure in life.

a highly prevalent mental disorder

Depression is a highly prevalent mental disorder, with about 280 million people worldwide who have the disorder.

a mood disorder that causes one to feel sad constantly and have feelings of disconnect with normal life

Depression is a mood disorder that causes one to feel sad constantly and have feelings of disconnect with normal life.

a common mental disorder, , loss of interest or pleasurefeelings of guilt or low self-worthdisturbed sleep or appetitefeelings of tirednessand poor concentration characterized by sadness, , , ,

Depression is a common mental disorder, characterized by sadness, loss of interest or pleasure, feelings of guilt or low self-worth, disturbed sleep or appetite, feelings of tiredness, and poor concentration.

a mood disorder that causes sadness and related symptoms to be more intense or last longer than usual after a difficult event

Depression is a mood disorder that causes sadness and related symptoms to be more intense or last longer than usual after a difficult event.

a mental health condition that causes feelings of sadness, hopelessness, and emptiness

Depression is a mental health condition that causes feelings of sadness, hopelessness, and emptiness.

a prevalent and disabling mental disorder that frequently co-occurs with a wide range of chronic conditions

Depression is a prevalent and disabling mental disorder that frequently co-occurs with a wide range of chronic conditions.

a common psychiatric disorder characterized by a high rate of relapse and recurrence

Depression is a common psychiatric disorder characterized by a high rate of relapse and recurrence.