The Bones of the Matter: Reversing the Loss of Bone Mass in Space

Without the influence of gravity, astronauts experience bone loss and it takes research in space to figure out how to reverse that.

MOFFETT FIELD, Calif. (NASA PR) — Spaceflight is hard on the human body. Adapted over generations to meet the rigors of an environment with gravity, all of the normal rules about staying healthy on Earth don’t apply in zero gravity. Long-term space exploration depends on knowing how to keep humans strong and well, so NASA has been studying the consequences of short-term trips in space for years, with the International Space Station contributing significantly to the understanding of how to keep astronauts healthy.