@@lihoxi123 when we're talking about heart rate, we are talking about Resting heart rate, athletes have low resting heart rate as they have well-trained cardio system, they have lower heart beat in the life span. The heart rate increased during exercise cannot outweight the benefit brought to resting heart rate.
Is it possible that Diet is one of the significant factors? Mice eat bad meat, elephants and whales eat plants and marine animals respectively. I wonder if, for example, pandas have cancers. If not, it might support my theory. Excellent episode. Inspirational. Thank you. Mr and Mrs 老高。