In the UK and other northern areas, a lot of it is due to seasonal affective disorder, where there's not enough sunlight. Vitamin D only does so much... Yes, I

In the UK and other northern areas, a lot of it is due to seasonal affective disorder, where there's not enough sunlight. Vitamin D only does so much... Yes, I understand that maybe the rational response to cold and dark and cloudy weather is not a cheery attitude, but if you love there you've got to do something. We can't all live in Hawaii.