Hello, I'm a sleep expert with a background in neuroscience and psychology. I can provide you with information on the effects of sleep deprivation on the human body.

The human body can survive without sleep for a surprisingly long time, but the consequences can be severe and even fatal if it continues for too long. The exact time it takes for someone to die from sleep deprivation varies greatly from person to person and depends on a number of factors, including overall health, age, and the individual's resilience.

The Guinness World Record for the longest time without sleep is held by Randy Gardner, who stayed awake for 264 hours (11 days) in 1964 as part of a high school science fair project. However, this is an extreme case and not recommended.

Sleep deprivation can lead to a number of negative effects, including:


1. Cognitive impairments: Memory, attention, and decision-making can be significantly affected.

2. Physical health issues: The immune system can be compromised, and there's an increased risk of chronic conditions like obesity and diabetes.

3. Emotional disturbances: Irritability, mood swings, and even hallucinations can occur with severe sleep deprivation.

4. Reduced reaction time: This can lead to an increased risk of accidents and injuries.

While the body can survive for a short period without sleep, the lack of sleep can lead to a gradual decline in cognitive and physical performance, and prolonged sleep deprivation can be life-threatening. It's crucial to prioritize getting enough sleep for maintaining good health and well-being.

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The easy experimental answer to this question is 264 hours (about 11 days). In 1965, Randy Gardner, a 17-year-old high school student, set this apparent world-record for a science fair. Several other normal research subjects have remained awake for eight to 10 days in carefully monitored experiments.read more >>