The Heart Does Not Beat Forever
People who study cross species differences, have noticed that all animals pretty much have the same number of ultimate heart beats, and so species with the slowest heart rates -- like the tortoise, have the longest lives, while animals with the fastest heart rates, like shrews, live only about a year.
It’s also noted that within a species, such as man for example, that those whose heart rates are lower tend to live longer than those with faster heart rates. The lower heart rates is indicative of greater cardiovascular efficiency -- requiring the heart to work less hard (fast). The heart cannot work any harder than it already does because its sole movement is full contraction to full relaxation -- it can not decide to give only 5-10% effort, or contraction -- and so the rate of the contractions is a variable that matters.
Great long distance runners are those with the genetic advantage of having slower than normal heart rates, and one will note that at the end of their races, many do not even seem to be breathing hard. Obviously, such people were built for running -- and when reviewing these elite runners coming in at the head of the pack of thousands of daily runners, they seem to be a breed apart, who are not normally seen otherwise along the jogging trails, laboring mightily to take their next breath and step.
Just as obviously, the ideal exercise for such people, is not running, or walking even, if the activity doesn’t seem to be right for them. But rather than that being discouraging, one should find or create the exercise they are suited best for -- just like even elite athletes must also. The champion distance runner is not going to be the champion weightlifter -- no matter how much time, energy and other resources he puts into it.
So the blanket advice that any exercise is better than none at all -- is not sound wisdom and may be the reason for a lot of people’s discouragement. When one embarks on the myriad of activities that human ingenuity has devised, some will be enjoyable and others will not -- but to force everyone to feel the same towards any one, is not any kind of understanding of human behavior, motivation and performance.
One of the great misunderstandings of contemporary science, is that the average does not supersede the range -- but it is the range that is real, and not the average. The “average” may actually be totally nonsensical and meaningless -- like the person standing with one foot in a bucket of scalding hot water and the other in ice water, and the researcher smugly pronouncing that the subject is “on average,” totally comfortable -- denying the actuality of the experience.
Those with greater cardiovascular efficiency will tend to find most cardiovascular challenges to be enjoyable -- while those without that congenital advantage, would find other movements and exercises more suitable as well as enjoyable. All the exercise in the world is not going to transform a cardiovascular disadvantaged, to the cardiovascular gifted.
That’s a misunderstanding of cause and effect, and correlation. People don’t exercise to get into shape; it’s because of their shape that they like to exercise -- but exercise is much broader than simply increasing one’s heart rate. It is the requirement that increasing one’s heart rate that discourages most people’s activity because the increase in the heart rate is an indicator to lower the heart rate, to conserve heart beats as much as possible.
The trick is to develop healthful exercise that costs the body nothing. What that requires is a better understanding of total body functioning -- and not just one organ in isolation to every other. The whole is much more than just the sum of the parts.