Winter is a miserable season for everybody.  It's cold, wet and the mornings are dark and depressing, and the dark descends upon us far too easily in the evenings.  For those battling with chronic illness, it can be even more miserable; with the cold affecting pain and fatigue levels.  And of course, Winter, and the darkness that comes with it, can cause Seasonal Affective Disorder; a type of depression that occurs during the Winter months and is thought to be...