There is no exact answer to this question. The most famous experiment was conducted in 1964, when seventeen-year-old Randy Gardner from California was awake Sleep Deprivation, Psychosis and Mental Efficiency / Psychiatric Times 264 hours, that is 11 days. This experience was carefully documented and, according to the idea, was supposed to prove that such prolonged deprivation does not affect a person in any way.
Gardner himself and the doctor who observed him claimed that they did not notice any mental and physical changes, and on the eve of the end of the experiment, the young man even beat an opponent in ping-pong. The second observer reported that over time, the guy's attention, memory, speech deteriorated and even had hallucinations.
It was later found that sleep deprivation is harmful to humans. Therefore, the Guinness Book of World Records does not support Man claims new sleepless record / BBC News such achievements and reliable data that someone broke the record could not be found.
Lack of sleep reduces the quality of life and increases the risk of death. Even proper nutrition and exercise will not improve health if there is not enough sleep.
Short-term sleep deprivation worsens Sleep Deprivation / National Sleep Foundation well-being and mood, causes problems with attention and memory, slows down thinking and increases the risk of getting into a car accident. Due to severe fatigue, microsnaps can occur that last from a few seconds to a minute. And this can be fatal for a person. The U.S. Centers for Disease Control and Prevention estimates that up to 6,000 people die every year. Sleep Deprivation / National Sleep Foundation due to driving in a sleepy state.
Chronic sleep deprivation is no less, if not more dangerous. He hits Here’s What Happens When You Don’t Get Enough Sleep (and How Much You Really Need a Night) / Cleveland Clinic throughout the body and may cause:
The National Sleep Foundation in the USA calculated How Much Sleep Do You Really Need? / National Sleep Foundation how much a person should ideally sleep, depending on their age:
| Newborns (up to 3 months) | 14-17 hours |
| Infants (4-11 months old) | 12-15 hours |
| Children aged 1-2 years | 11-14 hours |
| Preschoolers (3-5 years old) | 10-13 hours |
| Primary school students (6-13 years old) | 9-11 o'clock |
| Teenagers (14-17 years old) | 8-10 hours |
| Adults (18-65 years old) | 7-9 hours |
| Adults over 65 years old | 7-8 hours |
