What are the consequesces of sleeping late and get not enough sleep?

Impaired cognition: Lack of sleep cause people to be very tiered, have problem with concentration and focusing. These can cause people to get into accidents, make mistake, and even put his or others people life in jepardy. I someone has a history of a psychiatric condition, the lack of sleep can precipitate this making people more depressed, psychotic or manic.

Sleep deprivation: Sleep deprivation can cause a series of medical problems and subtle changes and your metabolism as well as your endocrine system. Start you can make this sort is worse, sleep deprivation has been associated with poor performance of mental functions, endocrine changes such a low sex drive and problems with insulin, effect on the calcium metabolism, the list is very long. Why are you keeping so busy.