Hamblin, a physician and health reporter, has been fielding the question since 2016, when the article he wrote about his decision to stop showering went viral. The piece outlines compelling reasons why one might want to spend less time sudsing up: Cosmetic products are expensive, showering uses a lot of water, and the whole process takes up valuable time.

Perhaps most importantly, bathing disrupts our skin's microbiome: the delicate ecosystem of bacteria, fungi, mites and viruses that live on (and in) our body's largest organ. Most of these microbes are thought to be benign freeloaders; they feast on our sweat and oils without impacting our health. A small number cause harmful effects, ranging in severity from an irksome itch to a life-threatening infection. And some help us out by, for example, preventing more dangerous species from taking up residence.