In article ,
Patrick Turner wrote:

When you get lean and fit, the natural heart rate at rest will fall from
a common 64BPM down to
say 52BPM even if you are 60 like me. A young bloke of 25 who did the
exercize I take would
benefit even more greatly, and have a HR maybe 45.
When I was fit when 40, my HR was 47BPM.

But how do you tell time properly if your resting heart rate isn't a
nice 60 BPM? Also notice that 60 neatly factors into 2*2*3*5.


Regards,

John Byrns

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