What NO SLEEP Does to Your Brain?

What happens to your brain when you stop sleeping? Sleep deprivation affects far more than how tired you feel. As the hours without sleep continue, attention, reaction time, judgment, metabolism, immune function, and even your perception of reality can begin to change. In this video, we follow what happens to the brain and body as sleep deprivation progresses, from the first signs of impaired attention to microsleeps, hallucinations, and the body's increasingly difficult attempt to compensate. 00:00 What Happens When You Stop Sleeping? 00:21 What Sleep Does for Your Brain and Body 00:55 The First Night Without Sleep 01:31 How Sleep Loss Changes the Body 02:35 When Sleep Deprivation Distorts Reality 03:30 Microsleeps and the Dangers of Staying Awake 05:07 What Happens When Sleep Finally Returns 05:32 Why Sleep Is Essential