What would happen to your body at the bottom of the Mariana Trench?

The Mariana Trench in the western Pacific Ocean is the deepest place on our planet. If you throw a rock into the water, it will sail 11 000 m before it hits the bottom. But unlike your body, the rock won't experience any unpleasant consequences. After all, it's not affected by all that immense pressure that builds up the deeper you go!