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Didn’t they know that?

Leonardo Da Vinci (Vitruvian Man) Art PosterSometimes when I read the results of a new scientific study, such as this one on “Loss of Height Linked to Breathlessness in the Elderly“, I wonder why they didn’t know that already. One researcher said:

“The results of the study were far more profound that we expected, given the relatively small number of subjects involved,” Tan said. “We postulate that this loss of height results in reduced lung volume which then results in shortness of breath.”

I’ve put Da Vinci’s Vitruvian Man as the image for this post. His sketch shows that a person’s reach from side to side is approximately the same as that person’s height. As you grow older the bones in the spine often compress or lose mass and the height of a person decreases. The study found that as the ratio of width of arms (reach) to height increased, that the elderly person was losing height and often that loss of height was related to shortness of breath.

Let’s think about that a second. I’ve still got all my organs but I’ve got less height so those same organs are now compressed into less space — which means my lungs have less space to expand. Wouldn’t the logical deduction, without a study, be that as the elderly person loses height they’d lose lung capacity? I just don’t understand the surprise at the findings.

It seems to me a forest/tree problem (i.e. can’t see the forest for the trees) or you look so much as the individual items that you lose sight of the big picture.

Was the research necessary? In my opinion it probably was since they were so surprised by the outcome. It’s one of those cases where if they had stopped to think about it, they’d have known what the results would be without actually having to run a study. But, in the scientific community if you don’t run a study and get quantified/verified/certified/reproducible results then all you have is intuition, folk lore, or theory. A theory that’s unproven isn’t really accepted. So, while you’d think one could figure it out intuitively, it is necessary to run a study to verify the belief that’s this is what’s happening.

It seems that a lot of things lately look like simple concepts being verified that you’d think would have been, by now, accepted facts. If all your organs now have to fit in less space — some of them are going to have problems working correctly. Now that it’s been tested maybe we can move on to how to help those who have lost height to adapt or alleviate the symptoms that loss of height has caused.

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