SADT

SADT stands for Seasonal Affective Disorder. It is a type of depression that is related to changes in seasons. For most people with SAD, symptoms begin in the fall and continue through the winter months, then improve in the spring and summer. This pattern is sometimes referred to as "winter depression." A less common form of SAD, "summer depression," causes depression during the summer and remits in the fall and winter.

The exact cause of SAD is not fully understood, but it is thought to be related to a disruption of the body's internal clock, or circadian rhythm. Changes in the amount of sunlight can affect the body's levels of melatonin, a hormone that regulates sleep, and serotonin, a neurotransmitter that affects mood.

Symptoms of SAD can vary from person to person and can include fatigue, difficulty concentrating, increased appetite, weight gain, craving carbohydrates, and a persistent sad or low mood. For those experiencing winter depression, symptoms may also include sleeping too much and withdrawing from social activities. Summer depression symptoms can include insomnia, decreased appetite, weight loss, and agitation.

Treatment for SAD may include light therapy, psychotherapy (talk therapy), and medication. Light therapy involves sitting in front of a special lamp that mimics natural sunlight. Psychotherapy can help individuals develop coping strategies for managing their symptoms. Antidepressant medications may also be prescribed. Doctors can help determine the most appropriate treatment plan for an individual.