Bright-light lamps may curb sugar cravings as seasonal symptoms emerge

People experiencing seasonal symptoms should consider starting bright-light therapy now, as October is the month when symptoms most commonly appear, research professor Timo Partonen of Finland’s Institute for Health and Welfare says. Yle reported his advice as autumn days grow shorter and mornings darker.

Seasonal symptoms can include poorer sleep, lower mood, less socialising and physical activity, and cravings for sweet foods, particularly in the afternoon or evening. Symptoms often worsen in November and may not disappear on their own until February.

Partonen recommends sitting near a bright-light lamp for 30 minutes in the morning, between 6am and 10am, on at least five days a week. Follow the device’s instructions, including the recommended distance from the face, and do not look directly at the light.

Symptoms may begin to ease within a week. Sweet cravings are often the first to improve, Partonen says, followed by other symptoms. Some people use the lamps throughout the winter.

Headaches or eye irritation may occur during the first week. People with an eye condition should check with their doctor before using a lamp, and bright light may cause overexcitement in people who have already noticed strong mood swings. Anyone whose symptoms do not improve, or who has severe symptoms, should consult a doctor.