Here is a fantastic speech by Neuroanatomist Jill Bolte Taylor. She first talks about the right and left hemispheres of the human brain, and then describes what it was like to personally experience a stroke. It'll make you laugh, it'll make you cry, and it'll make you think. My apologies for the cliché, but there is no better way to describe Jill Bolte Taylor's story. Well worth the 18 minutes - truly amazing.