Microgravity reduces bone density that exercise machines have not been able to counter.

Question

Quizplus · Accepted Answer

Microgravity (the condition of very weak gravity) reduces bone density because bones are not being subjected to the regular stress and strain that happens on Earth. Despite attempts to create exercise machines that simulate the forces of gravity, they have not been completely successful in preventing bone density loss in astronauts.

Microgravity Reduces Bone Density That Exercise Machines Have Not Been