“Perhaps my depression coincided with the start of every academic year and the subsequent increase in my workload. Or maybe there was a more biological explanation linked to the fact that I, like many people with depressed mood, find the absence of light at these latitudes intolerable in the winter months. I didn't know the answer - I still don't. This is who I am. I cope most of the time; I am well for months, sometimes even for more than a year; but there are recurring periods in my life when the world seems a darker, more hostile and unforgiving place. I am a person who gets depressed.”