science
What Happens Between Your Toes Inside a Closed Shoe
Two toes pressed together make a sealed surface that no air reaches and no product gets into. Skin held wet in that space softens and loses grip, which is why the space between the...
Which Bacteria Cause Foot Odor?
Five organisms are named in the research: Staphylococcus epidermidis and Bacillus subtilis from a 2006 study, and Kytococcus schroeteri and Staphylococcus hominis from a 2026 one, with Staphylococcus species dominating the sole generally. All...
Sweat Is Odorless. Here's What Actually Makes the Smell.
Sweat comes off your skin as roughly water and salt, with no smell. Bacteria already living on your feet convert an amino acid in it into isovaleric acid, and that compound is what you...
Why Feet Smell: The Actual Chemistry
Sweat is odourless. It leaves your skin as roughly water and salt. The smell appears afterwards, when bacteria living on your skin convert the amino acid L-leucine into isovaleric acid, which is the compound...
Why Your Feet Sweat More in Leather Shoes Than in Sneakers
Your feet don't sweat more in leather shoes. They sweat about the same, and the leather shoe gives the sweat nowhere to go. A sneaker has mesh panels, a looser collar and more air...