Regularly getting less than six hours sleep a night could cause the same long-term damage as alcohol abuse, according to a worrying new study.
For the body, sleep deprivation results in increased risk of obesity, depression, heart attacks and strokes - causing experts to dub it the 'modern ill'.
However, the most worrying consequences are rooted in the brain and new research suggests the effects are far more destructive than previously thought.
Research suggests that being awake for 18 hours results in the same cognitive impairment people get from being drunk.
This is so severe that driving while sleep deprived could be as dangerous as driving when drunk, researchers found.