"If man wasn't exposed to "modern ways" his average resting pulse would be similar to yours,.............."
And figuring in a pediatric death rate of a generous 1 in 3, his life expectancy would be around 35....
PS: Ya need to be a bit careful with very fit young people with low resting heart rates. Under anesthesia, manoevres that increase vagal tone (like eyeball pressure when reducing zygomatocomalar fractures) can lead to extreme bradycardia or even sinus arrest with brown trousers for all.
Forewarned is forearmed (with a bit of atropine or glycopyrrolate)!
