Endure

Is the limit in the body's physiology or in the mind, or in a combination of the two? (Mine is surely in the mind, I haven't gone close to limits of my body for running, swimming or cycling)

An exploration of research on limits of endurance performance and how to stretch them. I really enjoyed the middle and last section of the book—covering various physiological elements affecting the body, and the research on identifying and stimulating areas of the brain to stretch performance.
9/10.