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5 Insane Facts About Sleep That You Didn't Know

5. Sleep Deprivation and Its Consequences Going without sleep is known as sleep deprivation, and even missing a single night can start to take a toll on your body and mind. After just 24 hours without sleep, you might feel irritable, anxious, and easily frustrated. Your brain begins to slow down, making it harder to focus and process information. By the time you hit 48 hours, extreme exhaustion sets in, and your body may start shutting down momentarily through episodes called micro-sleeps—brief, involuntary moments where you lose consciousness for just a second or two, often without realizing it.