The Disturbing Effects of Space on Astronauts' Fingernails

Scientists have discovered various reasons why humans are not built for space, including bone and muscle density loss, difficulty in regulating bodily functions like urination, increased risk of erectile dysfunction due to radiation exposure, and even fingernail loss. These issues pose challenges for designing space suits and planning long-duration space missions. Despite these obstacles, space agencies like NASA are committed to exploring the universe and are working on solutions to make space travel safer for humans.