This article will provide an overview of facts, information, and statistics about depression.
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Depression Overview and Quick Facts
People with depression often experience similar feelings.
Though depression can look and feel different for each person, there are several common symptoms.

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These include:
Understanding depression can help you cope or support a loved one living with the condition.
If you or a loved one are in immediate danger, call 911.
How Common Is Depression?
Depression is one of the most common mental illnesses worldwide.
Though its prevalence varies by country, depression is the leading cause of death in many places.
Those with severe depression should seek immediate treatment from a licensed mental health provider.
Depression and Suicide
In some people with severe cases, depression can lead to suicide.
Summary
Depression is a common mental illness affecting millions of people worldwide.
People with co-occurring mental illnesses, inadequate income, and having family members with depression are at higher risk.
Depression is also linked to suicide, and anyone thinking or talking about suicide should be taken seriously.
Flint J, Kendler KS.The genetics of major depression[published correction appears in Neuron.
2014;81(5):1214].Neuron.
2014;81(3):484-503. doi:10.1016/j.neuron.2014.01.027
DeRubeis RJ, Strunk DR.
The Oxford Handbook of Mood Disorders.
Oxford University Press; 2017.
Patel V.Talking sensibly about depression.PLoS Med.
2017;14(4):e1002257.
2023;11(1):108. doi:10.1186/s40359-023-01130-5.
The Trevor Project.The Trevor Project: 2022 national survey on LGBTQ youth mental health.
2018;(303):1-8.
2020;17(3):207-221. doi:10.30773/pi.2019.0171