51-year-old astronaut Scott Kelly lived in the International Space Station for almost a year while his identical twin brother Mark continued with life on earth. As an astronaut, Scott is a member of group that’s been studied in greater depth than any other living humans. As part of a special study, so was his earthbound twin.
The many negatives of space travel were expected to take their toll on Scott’s health — and they did.
What researchers did NOT expect was a sizable and positive change in an important marker of aging. . .
Increases Risk of Heart Disease
The effects of extended space […]