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> My dad claims his sometimes exceeds 200 BPM.
See link below...
> I must admit, I didn't think that was an outrageous number until everybody
> here started being all like "dude, if it hits 150 BPM you'd nearly be in a
> coma!"
http://upload.wikimedia.org/wikipedia/commons/a/ad/Exercise_zones.png
If I do a "harcore" cycle ride for an hour or so my average is usually about
155, which seems inside the 152-171 zone identified by that chart for my
age.
> That's fine, but it also occasionally does this when I'm sitting in the
> house too. Why the heck would it do that?
Spurious electrical noise from things switching on/off?
> Last night, I drove to my dance class, and I drove home again. And on both
> journeys, the monitor went crazy just as I drove past a specific
> roundabout. I have no idea why, but that seems like one hell of a
> coincidence...
High voltage electric cables above or below the ground? Or a train line?
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