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NASA says space travel has five dangers. These are space radiation, feeling alone, being far from Earth, lack of gravity, and harsh conditions. The human body can change in some ways for space travel, like the heart and balance. However, bones, calcium levels, and reproduction struggle to recover. There is also little proof that space travel can harm hormone signals and egg or sperm quality. This harm might not fix itself when people come back to Earth.
For people who want to have children in space, the risks could be higher. Long time in space can cause more problems with reproduction. Changes in genes may affect fertility and health in future children.
Scientists know some about how radiation affects people. But there is still much to learn. Current knowledge shows radiation can harm reproductive health. This can make it hard to have healthy babies. The effects of long time in low gravity are still unclear. Changes in gravity might impact hormone levels and early baby growth.
Palmer says radiation can hurt DNA and increase cancer risk. Microgravity can also create problems with hormones and baby development. Due to these serious risks, Palmer calls for rules to protect people and future children in space.
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Vocabulary List:
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Radiation/ˌreɪ.diˈeɪ.ʃən/noun
Energy emitted in the form of waves or particles.
Reproduction/ˌriː.prɪˈdʌk.ʃən/noun
The biological process by which new individual organisms are produced.
Fertility/fərˈtɪl.ɪ.ti/noun
The ability to conceive children or young.
Microgravity/ˌmaɪ.kroʊˈɡræv.ɪ.ti/noun
A condition in which people or objects appear to be weightless.
Hormones/ˈhɔːr.moʊnz/noun
Chemical substances produced in the body that control and regulate various functions.
Development/dɪˈvɛl.əp.mənt/noun
The process of developing or being developed such as growth or evolution.