Affective disorder, seasonal (SAD)
Affective disorder, seasonal (SAD): Depression that tends to occur (and recur) as the days grow shorter in the fall and winter. It is believed that affected persons react adversely to the decreasing amounts of light and the colder temperatures as the fall and winter progress.
Seasonal affective disorder has not been recognized very long as a medical condition. The term first appeared in print in 1985. Seasonal affective disorder is also sometimes called winter depression or the hibernation reaction.
Read Also:
- Afferent
Afferent: Carrying toward. A vein is an afferent vessel because it carries blood from the body toward the heart. The opposite of afferent is efferent.
- Afferent nerve
Afferent nerve: A nerve that carries impulses toward the central nervous system.
- Afferent vessel
Afferent vessel: A vessel that carries blood toward the heart. A vein or venule.
- Affinity
Affinity: In immunology, the strength of binding interaction between antigen and antibody molecules.
- Affordable Care Act (ACA, Obamacare) Medical
Affordable Care Act (ACA or ObamaCare): the ACA is the US health care law that was enacted in March 2010. The law consists of two pieces of legislation: the Patient Protection and Affordable Care Act (PPACA) and the Health Care and Education Reconciliation Act (HCERA). According to the American Public Health Association, the APA “contains […]