This is how the human heart adapts to space
CNN
Astronaut Scott Kelly and endurance swimmer Benoît Lecomte both experienced heart shrinkage -- Kelly after a year in space and Lecomte after a 159-day swim across the Pacific Ocean. It's evidence of how the heart adapts to weightlessness, according to a new study.
Surprisingly, researchers observed the same change in Benoît Lecomte after he completed his 159-day swim across the Pacific Ocean in 2018. The findings suggest that long-term weightlessness alters the structure of the heart, causing shrinkage and atrophy, and low-intensity exercise is not enough to keep that from happening. The study published Monday in the American Heart Association's journal Circulation.
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