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If humans were extinct, Earth would be midway through a stable warm period with the next ice age due in 10,000 years, but if humans survived and did impact their planet, the greenhouse gas emissions would disrupt this natural cycle. [17] 10,000 – 1 million [note 1] The red supergiant stars Betelgeuse and Antares will likely have exploded as ...
From the beginning of the current century there is a tendency to also estimate healthy life expectancy (HALE), the average number of years that a person can expect to live in "full health". [2] [3] Comparing life expectancies across countries can be problematic.
[142] [143] [144] That is the key to why animals like giant tortoises can live so long. [145] Studies of humans with life spans of at least 100 have shown a link to decreased thyroid activity, resulting in their lowered metabolic rate. [citation needed]
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An aging expert thinks humans can live for 20,000 years—and he might not be crazy. There's one major key to unlocking extreme longevity. An Aging Expert Thinks Humans Can Live for 20,000 Years.
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.
Researchers found that people worldwide live 9.6 years longer than they are healthy — and in the U.S. the gap is more than 12 years. The U.S. has the biggest lifespan-health span gap in the world.
Maximum life span (or, for humans, maximum reported age at death) is a measure of the maximum amount of time one or more members of a population have been observed to survive between birth and death. The term can also denote an estimate of the maximum amount of time that a member of a given species could survive between birth and death ...