Astronauts are highly trained individuals who travel to space to conduct scientific experiments and exploration. They undergo rigorous physical and mental training to prepare for the unique challenges of space travel.
Zero gravity is the absence of gravitational forces experienced in space. This lack of gravity can have profound effects on the human body, including muscle wasting and changes in bone density.
In space, astronauts experience a significant loss of muscle mass and strength due to the lack of resistance from gravity. This can lead to muscle wasting and decreased physical fitness.
Space provides little protection from harmful radiation. Astronauts are exposed to higher levels of radiation in space, which can increase the risk of cancer and other health issues.
Living in a microgravity environment causes astronauts to lose bone density at a much faster rate than on Earth. This can lead to a higher risk of fractures and osteoporosis.
Microgravity refers to the very low gravitational forces experienced in space. It allows for unique research opportunities and the study of the effects of weightlessness on the human body.