Bil Baer Jaxx Wrote:I don't think how fast you go changes the pace at which your cells age.
It doesn't, but because you are traveling close to the speed of light your time frame reference is different. So while you may experience a year of time from your frame of reference, the world is experiencing many years.
They have actually proven this to be true, the took two atomic clocks that were synchronized down to like the pico second and found that those on the space station were out of sync with the rest of the world.
http://en.wikipedia.org/wiki/Tests_of_ge...relativity
Edit: Even better is that all dimensions change during relativity, so while you measure something on a ship traveling the speed of light it might be 20cm long but to a person in a different refference frame it could be 200metres long.