A lot of terminology can be rather nebulous and needs nuancing. As Karl observed one who engages in running/jogging etc can have a resting heart rate well under 60 bpm.

It can also mean a developing cardiac block where the bpm drops into the 20's or 30's overnight without any explanation. My father had that and ended up with a pacemaker that solved the decades old problem he had with transitory dizziness.

Apparently no Dr. over his lifetime was able to correlate decreased bpm with dizziness. He just wasn't getting enough blood to the old noggin.

Medicine is as much an art form as science and not all are Rembrandt.

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It's been a bad year the next one will probably be worse.
Is there not one thing in your life that is worth losing everything for?
Well if that don't beat the bugs 'afightn.