I know people whose emotions fluctuate in response to the weather, but I never used to be one of them. Similar to what my father calls a “teacher-proof” student (one motivated to learn no matter the strength of the student-teacher bond or quality of the instruction), I had always been a “weather-proof” person, generally positive and energetic no matter the situation outdoors. I’ve remained weather-proof most of my life, even though I’ve lived mostly in the northeastern U.S., where each of the four seasons appears in full stereotypical glory, and winter and summer feature extremes of temperature. I don’t think I had even heard of seasonal affective disorder (SAD) until after college. This cha