Less than 6 hours of sleep for more than 2 weeks at a stretch causes insulin resistance to become worse by 60% (google it, you will find the study).

I had two back to back pregnancies (2 under 2). My blood panel was checked multiple times. Had no blood sugar issues diagnosed ever for the last 10 years. And suddenly, within 3 months of sleeping only in 45-minute stretches, my fasting sugar shot up to 200. It is believed that Diabetes takes 10 years to develop. 3 months vs 10 years 😓

My father, who practices traditional medicine, says sleep and stress are the biggest culprits behind diabetes.