Get motivated to exercise regularly like these gym rats in their 70s and 80s
Dr. Grover Smith, a retired radiologist, is 86 and still going strong. He attributes this partly to training regularly in a ...
TheHealthSite26 分钟
Sunita Williams' Return to Earth: NASA Astronaut Likely to Face Gravitational Challenges ...
After spending more than eight months aboard the International Space Station (ISS), veteran astronaut Sunita Williams is ...