What Does Ayurveda Say About Circadian Rhythms and Sleeping With the Seasons? Ayurveda addresses circadian rhythms through the doshic clock -- a framework that maps the body's natural daily rhythms to the six alternating windows of Vata, Pitta, and Kapha activity across 24 hours. This framework, established in classical texts thousands of years before chronobiology, describes the same biological rhythms that modern circadian research has since documented mechanically: the cortisol awakening response, melatonin secretion timing, digestive enzyme peaks, and core temperature cycling. What Ayurveda adds is the seasonal dimension -- the understanding that these rhythms must shift with the seasons to maintain health. The circadian rhythm conversation in modern wellness focuses almost entirely on