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 no blood pressure changes in astronauts have been noted so far, scientists said.
Image: During Expedition 35 in 2013, Canadian astronaut Chris Hadfield performs an experiment by the University of Waterloo's Richard Hughson called BP Reg, that examines the risk of fainting for astronauts. - NASA
To read the original article: Astronauts May Suffer Artery Damage on Long Missions
