Getting to Bed Late
If you’re a night owl, then rethink your sleeping routine. A Korean study found that people who stay up late are more likely to develop diabetes than those who get to bed early, even if they sleep seven to eight hours.
Night owls are often exposed to more artificial light (TVs, etc.), which is associated with poor blood sugar regulation. Staying up late is also linked to poor sleep quality. This can disrupt the metabolism.