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Randy Gardner (born c. 1946) is an American man from San Diego, California, who once held the record for the longest amount of time a human has gone without sleep.In December 1963/January 1964, 17-year-old Gardner stayed awake for 11 days and 24 minutes (264.4 hours), breaking the previous record of 260 hours held by Tom Rounds.
At long irregular intervals, Earth's biosphere suffers a catastrophic die-off, a mass extinction, [9] often comprising an accumulation of smaller extinction events over a relatively brief period. [10] The first known mass extinction was the Great Oxidation Event 2.4 billion years ago, which killed most of the planet's obligate anaerobes.
The book also suggests that not only will Earth eventually become uninhabitable to complex life long before it finally gets destroyed by the Sun's red giant stage, it also implies that intelligent life will probably die out even much sooner due to them being even more fragile than other animals, and that not only microbial life were the first ...
The Doomsday Clock is seen at 89 seconds to midnight, the closest the clock has ever been to midnight in its 78-year history. / Credit: SAUL LOEB/AFP via Getty Images
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As soon as thy eyes have closed shalt thou be woken, a thousand years shall be as if thou hadst slept but a little half-hour. Just as at night we hear the clock strike and know not how long we have slept, so too, and how much more, are in death a thousand years soon past. Before a man should turn round, he is already a fair angel. [107]
After the sun celebrates its 11 billionth birthday, scientists believe it will continue to expand to the point where it is 166 times bigger than it is now.
Studies on rodents show that the response to neuronal injury due to acute sleep deprivation is adaptative before three hours of sleep loss per night and becomes maladaptative, and apoptosis occurs after. [35] Studies in mice show neuronal death (in the hippocampus, locus coeruleus, and medial PFC) occurs after two days of REM sleep deprivation.