Low gravity in space travel found to weaken and disrupt normal rhythm in heart muscle cells

Scientists who arranged for 48 human bioengineered heart tissue samples to spend 30 days at the International Space Station report evidence that the low gravity conditions in space weakened the tissues and disrupted their normal rhythmic beats when compared to earth-bound samples from the same source.

The researchers observed a significant difference in the heart tissue samples exposed to space conditions compared to those on Earth.

This study provides valuable insights into the effects of microgravity on the cardiovascular system, which may have implications for long-duration space missions and the development of countermeasures to mitigate these effects.