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Not agreeing with the (somewhat amusing) limited heartbeats theory, but even under that theory, cardio is beneficial since it lowers your resting heart rate. e

Not agreeing with the (somewhat amusing) limited heartbeats theory, but even under that theory, cardio is beneficial since it lowers your resting heart rate. e.g. my HR is 50 thanks to running an hour a day, my HR during those runs are between 120 to 150, that gives 50x60x23+150x60 == 78000 beats a day a non runner might've a HR of 60 (being very generous, most folks are well above 70), that gives 60x60x24 == 86400 beats Again, the limited heartbeats theory sounds like an oversimplification. But the point of rigorous training (cardio and strength) is that your body adapts to the taxing efforts during training and doesn't need to work nearly as hard for your day to day.

nradov 2y ago
For most adults, a resting heart rate above about 60 bpm is a sign of serious underlying pathology. Doctors usually won't recommend medical treatment unless resting heart rate exceeds 100 bpm, but over time there is a significantly increased risk of premature death.
- IIsi50MHz 2y ago
  > For most adults, a resting heart rate above about 60 bpm is a sign of serious underlying pathology. Sources? The claim I most recently heard is that 60-80 bpm is within normal range (which itself surprised me, because I've usually been told a target of 60 bpm resting heartrate, leaving aside the 40 bpm achievable by some athletes).