While dozing for 30 to 40 minutes can boost concentration, research showed anything over 60 minutes can also increase the danger of type 2 diabetes or even premature death. While dozing for 30 to 40 minutes can boost concentration, research showed anything over 60 minutes can also increase the danger of type 2 diabetes or even premature death.
Long daytime naps can increase risk of a stroke by nearly a quarter, study says
