Astronauts May
Suffer Artery Damage on
Long Missions
At least some
Astronauts who spend six months aboard the International Space Station come back to Earth with stiffer arteries than before their flights, a new study reveals.
Stiff arteries in seniors here on Earth can lead to higher
blood pressure and, potentially, problems with blood flow to the brain. But ** blood pressure changes in
Astronauts have been **ted so far, scientists said.
"In an older person, that means that the blood pressure that reaches the brain, for example, is elevated," Richard Hughson, lead author of the research and a vascular aging researcher at the University of Waterloo in Canada, told Space.com in a phone interview. "You're putting higher pressures on the smaller, more fragile blood vessels that are in the brain and potentially damaging them."
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