Bone mass
Dear Doctor: I just turned 65, and even though I'm strong and healthy, my friends say I should be concerned about osteoporosis. What is it, and how do I know if I have it?
Dear Reader: Osteoporosis, [...]
Early in the morning of July 3, 2017, 20 intrepid mice returned to Earth from the International Space Station aboard SpaceX’s Dragon capsule, splashing down in the Pacific Ocean off [...]