Some bodies like it hot, especially when trying to fight off germs. When the heat is on, the body creates an environment where germs find it hard to survive.
Post-Movember Motivation from Olympic Legend Mark Spitz
"When I went to the Olympics, I had every intention of shaving the moustache off, but I realized I was getting so many comments about it — and everybody was talking about it — that I decided to keep it."
Photo by Paul Mutant