Good, my Grandpa has less and has been kicking for 20 years. 1/8 of a lung, 23% of heart, etc. I forget all the numbers. Doctors say that they don't know why he still is around. Call him d-ad man walking. He celebrated his 80th birthday in September. I know why he still is around. My Grandpa has great faith, a man of faith, and serves God well. My Grandpa is not the only person that should be gone and still walks. My Pastors sister, etc. With God anything is possible.