Mental Health Awareness Month (also referred to as “Mental Health Month”) has been observed in May in the United States since 1949, reaching millions of people in the United States through the media, local events, and screenings.
Mental Health Awareness Month was started in the United States in 1949 by the Mental Health America organization (then known as the National Association for Mental Health). Each year in mid-March Mental Health America releases a toolkit of materials to guide preparation for outreach activities during Mental Health Awareness Month. During the month of May, Mental Health America, its affiliates, and other organizations interested in mental health conduct a number of activities which are based on a different theme each year.
Themes from recent years include:
Its purpose is to raise awareness and educate the public about: mental illnesses, such as the 18.1% of Americans who suffer from  depression, schizophrenia, and bipolar disorder; the realities of living with these conditions; and strategies for attaining mental health and wellness. It also aims to draw attention to suicide, which can be precipitated by some mental illnesses. Additionally, Mental Health Awareness Month strives to reduce the stigma (negative attitudes and misconceptions) that surrounds mental illnesses. The month came about by presidential proclamation.
Mental Health America is not the only organization to run campaigns throughout May. Many other similar organizations choose to host awareness observances that coincide with Mental Health Awareness month. National Children’s Mental Health Awareness Day is one such campaign. This event is sponsored by the Substance Abuse and Mental Health Services Administration in partnership with other non-profit and advocacy organizations.
Twitch.tv / Twitch has made an effort to participate in mental health awareness month as well, first with a blog post in 2018  then with an email in 2019 directing users to the Twitch Cares: Mental Health Support & Information page . The Twitch Cares page provides links to hotlines, games built on evidence-based therapeutic principles, and guidance on how to help viewers and streamers alike with specific resources for LGBTQ+ users. Streamers like MommaFoxFire place emphasis on mental health awareness during mental health awareness month and beyond to help lessen the stigma around talking about mental health. 
Other months and weeks throughout the year are designated to raise awareness around specific mental health conditions or the mental health of different demographic groups (Minority Mental Health Month, Mental Illness Awareness Week, National Depression Screening Day, etc.).
- Mental Health America
- National Alliance for Mental Illness (NAMI)
- Brain & Behavior Research Foundation
- National Institute of Mental Health
- National Federation of Families for Children’s Mental Health