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Depression (major depressive disorder) is a common and serious medical illness that negatively affects how you feel, the way you think and how you act. Fortunately, it is also treatable. Depression causes feelings of sadness and/or a loss of interest in activities once enjoyed. It can lead to a variety of emotional and physical problems and can decrease a person’s ability to function at work and at home.

Depression symptoms can vary from mild to severe and can include:

  • Feeling sad or having a depressed mood

  • Loss of interest or pleasure in activities once enjoyed

  • Changes in appetite — weight loss or gain unrelated to dieting

  • Trouble sleeping or sleeping too much

  • Loss of energy or increased fatigue

  • Increase in purposeless physical activity (e.g., hand-wringing or pacing) or slowed movements and speech (actions observable by others)

  • Feeling worthless or guilty

  • Difficulty thinking, concentrating or making decisions

  • Thoughts of death or suicide

Symptoms must last at least two weeks for a diagnosis of depression. Also, medical conditions (e.g., thyroid problems, a brain tumor or vitamin deficiency) can mimic symptoms of depression so it is important to rule out general medical causes.

Depression affects an estimated one in 15 adults (6.7%) in any given year. And one in six people (16.6%) will experience depression at some time in their life. Depression can strike at any time, but on average, first appears during the late teens to mid-20s. Women are more likely than men to experience depression. Some studies show that one-third of women will experience a major depressive episode in their lifetime.

                                                                         --American Psychiatric Association

Children and Adolescents

Child Mind Institute
Families for Depression Awareness
Families USANational Child Traumatic Stress Network
Selective Mutism Group
Selective Mutism Foundation

Teens and College Students

Active Minds
Minding Your Mind
National Eating Disorders Association
Promoting Student Mental Health 
Student Mental Health: A Guide to Identifying Disorders and Promoting Wellness 

The Jed Foundation 




Food and Drug Administration Office of Women's Health provides these links:


Man Therapy

Military and Military Families

Helping Children Cope During Deployment — Real Warriors Campaign, Defense Centers of Excellence for Psychological Health and Traumatic Brain Injury (DCoE)

American Foundation for Suicide Prevention
American Psychiatric Association
American Psychological Association

Brain and Behavior Research Foundation 
Centers for Disease Control and Prevention (CDC) 
Depression and Bipolar Support Alliance (DBSA)
Mental Health America
NAMI (National Alliance on Mental Illness)
National Institute of Mental Health 


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