Hacker News Top Stories with Summaries (November 10, 2023)
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<h1> Hacker News Top Stories</h1>
<p>Here are the top stories from Hacker News with summaries for November 10, 2023 :</p>
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Apollo astronaut Frank Borman has died
Summary: Apollo 8 commander Frank Borman, who led the first crew to orbit the moon, passed away at 95 due to a stroke. Borman was part of NASA's second astronaut corps and played a crucial role in the 1969 moon landing. After retiring from NASA, he served as the chief executive of Eastern Air Lines.
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Widespread drastic reduction of brain myelin upon prolonged endurance exercise
Summary: A recent study found that prolonged endurance exercise, such as running a marathon, leads to a widespread and significant decrease in brain myelin content. However, myelin levels partially recover within two weeks after the event. This suggests that myelin use and replenishment is a form of metabolic plasticity aimed at maintaining brain function during extreme conditions.
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