Winter-over syndrome

Winter-over syndrome (pronunciation: /ˈwɪntərˌoʊvər sɪnˈdroʊm/) is a psychological condition that affects individuals who spend extended periods in Antarctica during the winter months. The syndrome is characterized by a range of symptoms including insomnia, irritability, depression, and cognitive impairment.

Etymology

The term "winter-over syndrome" originates from the practice of "wintering over" in Antarctica, where individuals stay on the continent throughout the harsh winter months. The syndrome is also sometimes referred to as "polar T3 syndrome" due to the observed decrease in the thyroid hormone triiodothyronine (T3) in affected individuals.

Symptoms

Winter-over syndrome is characterized by a range of symptoms that typically emerge after several months of living in the extreme conditions of the Antarctic winter. These symptoms include:

Insomnia: Difficulty falling asleep or staying asleep.
Irritability: Increased sensitivity to stress and frustration.
Depression: Persistent feelings of sadness, hopelessness, and loss of interest in activities.
Cognitive impairment: Difficulty with memory, concentration, and decision-making.

Causes

The exact cause of winter-over syndrome is not fully understood, but it is believed to be related to the extreme environmental conditions of the Antarctic winter, including prolonged darkness, extreme cold, and social isolation. The decrease in the thyroid hormone triiodothyronine (T3) observed in affected individuals may also play a role.

Related Terms

Seasonal affective disorder: A type of depression that's related to changes in seasons.
Cabin fever: A popular term for a claustrophobic reaction that takes place when a person or group is isolated and/or shut in a small space, with nothing to do for an extended period.
Polar T3 syndrome: An alternative name for winter-over syndrome, referring to the decrease in the thyroid hormone triiodothyronine (T3) observed in affected individuals.