Winter brings fewer days and less sunlight. Disrupting circadian rhythms makes it tougher to control sleep-wake cycles.
Cold temperatures outside often mean indoor heating, which can lead to fluctuating temperatures in the bedroom.
With shorter days and longer nights, people may experience reduced exposure to natural daylight.
The winter season often coincides with holidays, which can bring added stress and anxiety.
Colder weather and holiday busyness may discourage outdoor activities and exercise.
Winter holidays are often associated with indulgent meals, festive treats, and altered eating patterns.