Northumbria University : EXPERT COMMENT: William Shatner oldest astronaut at 90 - here's how space tourism could affect older people.
ENPNewswire-November 2, 2021--Northumbria University : EXPERT COMMENT: William Shatner oldest astronaut at 90 - here's how space tourism could affect older people
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Release date- 01112021 - Professor Nick Caplan of Aerospace Medicine and Rehabilitation and Professor Chris Newman of Space Law and Policy at Northumbria University provide expert commentary on the effects of space travel on older people following the news of William Shatner being the oldest person to go to space.
??Is space really the final frontier? William Shatner has found out after boldly going where no 90-year-old has gone before. Some 55 years after Captain James T Kirk hit our screens in the original Star Trek, Shatner recently launched to the edge of space aboard Blue Origin's New Shepard for a ten-minute sub-orbital flight.
??Shatner has become the oldest person to go to space, breaking the record set only recently by 82-year-old Wally Funk, who travelled on the New Shepard's first crewed spaceflight in July. Funk was one of the Mercury 13 women who qualified for spaceflight in the 1960s but never flew.
??With commercial spaceflight companies now taking older people to space, it's timely to consider the potential physical impact space flight might have on them.
In just a few days in space, the human body starts to adapt. Astronauts' bones start to lose density and their muscles become smaller and weaker because they're not being used to stand up against gravity or to move around.
While these changes aren't much of a problem in microgravity, they can lead to increased risk of injury, such as back pain or bone fracture, when returning to Earth. Astronauts spend considerable time exercising in space to minimise these adaptations, which are similar to age-related changes affecting people on Earth, but happen much more quickly.
A 90-year-old person with normal age-related health changes might arrive in space with their muscles and bones already deconditioned. This could present additional risks as their body adapts further when deprived of gravity. While we can speculate, not nearly enough older people have gone to space for us to know for sure how their bodies will cope.
Anyone like Shatner who only spends a few minutes in microgravity won't need to worry about this too much. The greatest risks to their health are the mental and physical stresses experienced during launch, re-entry into Earth's atmosphere, and landing.
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