My theory about sleep “ontogeny” is that since the early cycles differ from the later ones every night, could that also be recapitulating the evolutionary order in which they developed?
Research suggests turns out that mice can get the disease but that their longer telomeres often protect them and produce a mild disease form or phenotype
Since sex hormones like testosterone are positively associated with acne AND with increased telomerase activity, the study probably just captured this effect.