The human heart shows signs of ageing after just a month in space
undefined 24, 2024
Engineered human heart tissue sent to space for 30 days showed signs of weakening, irregular beating, and molecular changes mimicking aging, according to a study published in *PNAS*. Researchers observed a 50% drop in contraction strength and irregular heartbeats, though some effects were reversible upon return to Earth. Genetic analysis revealed increased expression of genes linked to inflammation and heart disorders. The study provides insights into how spaceflight impacts the heart, with plans for further organ research.
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