You're not alone if you’ve been feeling down since the days have been noticeably shorter and darker. A great majority of people living in the northern hemisphere are affected by the change of seasons and weather this time of year. You may be experiencing changes in energy levels, sleep, eating patterns, mood and general feeling of well-being, which may be linked to reduced exposure to sunlight during the shorter autumn and winter days. It’s completely normal to have a day here or there when you feel down, especially if the weather is gloomy, but if your feelings are affecting your everyday life, you shouldn’t downplay or ignore your symptoms.