> What UK Biobank is revealing, scan by scan and layer by layer, is that disease doesn’t arrive out of nowhere. It accumulates quietly, shaped by genes, environment, and habits.
I think that is already known for a while. It's called functional reserve, and was a big topic in HIV patients (and then again for SARS-CoV-2).
Like people with higher cognitive capabilities will be protected by those a bit longer before onset of HIV-associated neurocognitive disorder (or even dementia).
Same for kidneys: They have a functional reserve that you are born with gets used up during life, until it is gone. Acute kidney disease treatment is aimed at preserving whatever little function is left.
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