From 4:30 a.m. wake-ups to treadmill runs: How Sunita Williams fights bone loss, radiation in space

Sunita Williams discussed the impact of long-term space travel on the body, emphasizing the importance of daily workouts to combat bone density loss. Both she and Butch Wilmore follow rigorous exercise routines and adapt to challenges like radiation exposure and microgravity. Despite missing their families, they remain focused on their mission at the ISS.