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Sphere on Spiral Stairs

What is depression?

Depression is classified as a mood disorder. It may be described as feelings of sadness, loss, or anger that interfere with a person’s everyday activities.

It’s also fairly common. Data from the Centers for Disease Control and PreventionTrusted Source estimates that 18.5 percent of American adults had symptoms of depression in any given 2-week period in 2019.

Though depression and grief share some features, depression is different from grief felt after losing a loved one or sadness felt after a traumatic life event. Depression usually involves self-loathing or a loss of self-esteem, while grief typically does not.


In grief, positive emotions and happy memories of the deceased typically accompany feelings of emotional pain. In major depressive disorder, the feelings of sadness are constant. People experience depression in different ways. It may interfere with your daily work, resulting in lost time and lower productivity. It can also influence relationships and some chronic health conditions. Conditions that can get worse due to depression include:

  • arthritis

  • asthma

  • cardiovascular disease

  • cancer

  • diabetes

  • obesity

It’s important to realize that feeling down at times is a normal part of life. Sad and upsetting events happen to everyone. But if you’re feeling down or hopeless on a regular basis, you could be dealing with depression. Depression is considered a serious medical condition that can get worse without proper treatment.


Depression symptoms Depression can be more than a constant state of sadness or feeling “blue.” Major depression can cause a variety of symptoms. Some affect your mood and others affect your body. Symptoms may also be ongoing or come and go. General signs and symptoms Not everyone with depression will experience the same symptoms. Symptoms can vary in severity, how often they happen, and how long they last. If you experience some of the following signs and symptomsTrusted Source of depression nearly every day for at least 2 weeks, you may be living with depression:

  • feeling sad, anxious, or “empty”

  • feeling hopeless, worthless, and pessimistic

  • crying a lot

  • feeling bothered, annoyed, or angry

  • loss of interest in hobbies and interests you once enjoyed

  • decreased energy or fatigue

  • difficulty concentrating, remembering, or making decisions

  • moving or talking more slowly

  • difficulty sleeping, early morning awakening, or oversleeping

  • appetite or weight changes

  • chronic physical pain with no clear cause that does not get better with treatment (headaches, aches or pains, digestive problems, cramps)

  • thoughts of death, suicide, self-harm, or suicide attempts

The symptoms of depression can be experienced differently among males, females, teens, and children. Males may experience symptoms related to their:

  • mood, such as anger, aggressiveness, irritability, anxiousness, or restlessness

  • emotional well-being, such as feeling empty, sad, or hopeless

  • behavior, such as loss of interest, no longer finding pleasure in favorite activities, feeling tired easily, thoughts of suicide, drinking excessively, using drugs, or engaging in high-risk activities

  • sexual interest, such as reduced sexual desire or lack of sexual performance

  • cognitive abilities, such as inability to concentrate, difficulty completing tasks, or delayed responses during conversations

  • sleep patterns, such as insomnia, restless sleep, excessive sleepiness, or not sleeping through the night

  • physical well-being, such as fatigue, pains, headache, or digestive problems

Females may experience symptoms related to their:

  • mood, such as irritability

  • emotional well-being, such as feeling sad or empty, anxious, or hopeless

  • behavior, such as loss of interest in activities, withdrawing from social engagements, or thoughts of suicide

  • cognitive abilities, such as thinking or talking more slowly

  • sleep patterns, such as difficulty sleeping through the night, waking early, or sleeping too much

  • physical well-being, such as decreased energy, greater fatigue, changes in appetite, weight changes, aches, pain, headaches, or increased cramps

Children may experience symptomsTrusted Source related to their:

  • mood, such as irritability, anger, rapid shifts in mood, or crying

  • emotional well-being, such as feelings of incompetence (e.g., “I can’t do anything right”) or despair, crying, or intense sadness

  • behavior, such as getting into trouble at school or refusing to go to school, avoiding friends or siblings, thoughts of death or suicide, or self-harm

  • cognitive abilities, such as difficulty concentrating, decline in school performance, or changes in grades

  • sleep patterns, such as difficulty sleeping or sleeping too much

  • physical well-being, such as loss of energy, digestive problems, changes in appetite, or weight loss or gain


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