Have you ever realized that you feel differently at different times of the year? Perhaps in the winter you feel less motivated and lethargic, and maybe as the spring shifts into summer you feel energized, alert and ready to tackle a bunch of things on your to-do list. Today I want to talk about how our bodies monitor changes in our environment (from temperature to sunlight), how it interprets this information and then changes how we feel and our behavior. Yes, even metabolism (read: weight). Fascinating!