'Lifting a pencil will feel like workout': How gravity will 'punish' Sunita Williams on return from space

NASA astronauts Sunita Williams and Butch Wilmore have been stranded in space for over eight months abroad the International Space Station (ISS). Upon their return, the two are will experience significant physical changes, as gravity begins to "punish" their body after months of living in weightlessness. This sudden shift is likely to cause will lead to discomfort and a feeling of heaviness as the body readjusts to gravitational forces.