We have previously reported how one is more susceptible to cardiac arrests and heart attacks early in the morning due to the release of the cytokinin hormone. Turns out, diabetics, too, should be extra careful during the morning hours as cortisol — a hormone responsible for maintaining glucose levels in the blood — peaks between 6 am to 10 am. “The stress level is correlated with cortisol hormone, and this hormone is highest during the morning hours. It gradually goes down as the day progresses, and is at its lowest by midnight,” Dr Shyam Sundar C M, Consultant Endocrinology and Diabetology, Sparsh Hospital said. Read more here..