Some comments herein deserve a reply :).
Fact: 1g (the earths' gravity), equates to accelerating at an ever increasing rate of 32 fps. Our bodies are fully capable to sustain this rate of acceleration for a lifetime.
1g for 1 minute > 1100 mph - the speed of earth's rotation.
1g for 1 hour > 67,000 mph - earth's speed around the sun.
1g for 1 day > 1,342,000 mph - earth's speed relative to the local group of galaxies ( 0.2% of the speed of light ).
1g for 1 year > speed of light ( 669,600,000 mph ).
Exceeding the speed of light, relatively speaking, may not be doable; covering a distance, faster than light from another frame of reference, is doable. Not only are we lacking in knowledge, worse, we're lacking imagination!