The National Institute of Mental Health is one of 27 institutes and centers that make up the National Institutes of Health.


Science Facts Written by NIH NIMH


When Do We Encounter Ionizing Radiation In Our Daily Lives?

Everyone who lives on this planet is constantly exposed to naturally occurring ionizing radiation (background radiation). This has been true since the dawn of time. The average effective dose ... Continue reading


Eating Disorders

Eating is controlled by many factors, including appetite, food availability, family, peer, and cultural practices, and attempts at voluntary control. Dieting to a body weight leaner than needed for ... Continue reading


What Is Autism?

Autism is not a disease, but a developmental disorder of brain function. People with classical autism show three types of symptoms: impaired social interaction, problems with verbal and nonverbal ... Continue reading


How Biological Clocks Work

Anyone who has traveled has experienced jet lag—that groggy realization that while your day is beginning in Washington, DC, the night you just left in San Francisco is hardly over. Jet lag is an ... Continue reading