He was a short man, less than five feet tall, but in his young days he was physically strong and athletic. However, he became ill while making The Ascent of Man and his health deteriorated.
Siya ay isang maikling tao, mas mababa sa limang feet tall, ngunit sa kanyang mga batang araw siya ay pisikal na malakas at Athletic. Gayunman, siya ay naging masama habang ginagawa Ang Ascent of Man at sa kanyang kalusugan deteryorado.