<unk>  is a condition found in<unk>  explorers, caused by a decrease in levels of the thyroid hormone<unk> . Its effects include forgetfulness, cognitive impairment and mood disturbances. It can exhibit itself in a fugue state known as the Antarctic stare. It is regarded as one of the contributory causes of winter-over syndrome.
Polar T3 syndrome
Young–Madders syndrome
Christianson syndrome
Fraser syndrome
Berdon syndrome
Streff syndrome
Gianotti–Crosti syndrome
Griscelli syndrome