SAD, 123, baby you and me

Coronary heart disease and high blood pressure increase the further you are from the equator because the equator is at the perfect latitude to receive year-round intense sunlight. This means year-round production of vitamin D from all those UV rays. But up here in Canada, and anywhere with a latitude above 35 degrees north, the oblique angle at which the sunlight hits the earth means the rays aren’t strong enough for our bodies to naturally produce vitamin D between October and March (give or take a month depending on location). The Canadian Cancer Society says you should consume 1,000 IU of vitamin D every day, especially in the winter. So eat your salmon and eggs and drink your fortified milk! Your bones won't disintegrate and it could prevent you from becoming s-a-d SAD in the coming months.