Flick off the overhead lights. Light a candle. Turn on a lamp or two and sit. It’s 7pm in November and dark outside (at least in the Northern Hemisphere). It’s dim and cozy inside and your body and mind relax. Fast forward to 2pm tomorrow. Bright sunlight outdoors; bright inside. You’re energized and ready for action. Close the shades, turn off the lights, light a candle or two. Hmm, doesn’t feel right. Why? Our bodies are programmed to ebb and flow based primarily on our circadian rhythms (how our body acts and reacts based on external cues).
Our bodies want to synchronize with our environment. As the sun rises, our bodies rev up, and as it sets, we do the same. Or so the theory goes.