The most dramatic example of this biological priority shift is a sexually mediated disregard for pain and physical discomfort. Whatever ails you pretty much stops ailing you during really hot sex. Fevers and muscle aches, Kinsey claimed, briefly abate. Temperature extremes go unnoticed, which must have been a relief for the couples in Kinsey’s attic, as it was, depending on the season, either very hot or very cold up there. Handily, the gag reflex is eliminated, even “among individuals who are quite prone to gag when objects are placed deep in their mouths.”

