Space Travel Seriously Damages Your Health... | The Huffington Post

"I recall the first VR ('virtual reality') designs was to help re-orient astronauts, explained as providing a reality to practice in, mechanical escalators particularly troublesome, so the story went. When I was studying archaeology they stated that the domesticated animals have a similar response, that is bones do not get as robust from not running on the 'woolly flanks' of the Zagros Mountains, where domestication may have started, in western Iran. Maybe its a blood factor they might find 'talking to the animals'."