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.
원문출처 : https://www.cnn.com/2021/03/29/world/heart-shrinkage-weightlessness-space-wellness-scn/index.html
원문출처 : https://www.cnn.com/2021/03/29/world/heart-shrinkage-weightlessness-space-wellness-scn/index.html