Science
Space news: Astronaut Scott Kelly reveals how the human heart adapts to life in space – 7NEWS.com.au
What happens to the strength and shape of your heart when you spend a year in the weightlessness of space?
When astronaut Scott Kelly spent nearly a year in space, his heart shrank despite the fact that he worked out six days a week over his 340-day stay, according to a new study.
Surprisingly, researchers observed the same change in Benoit 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.
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