London – A new report published in the Annals of Internal Medicine, analysed over 60,000 female nurses who stayed up late, ate unhealthy foods, exercised less, had high body mass index, slept fewer hours, smoked cigarettes, developed a risk of Type 2 diabetes. The new warning is issued to night owls by medical researchers who said they can develop diabetes due to their unhealthy lifestyle compared to those who are early birds.