What lives on our skin?

The video explains that body odor is caused by bacteria feeding on proteins in sweat, particularly in areas like the armpits. It highlights the vast number of bacteria on human skin, comparable to the population of the USA. Different bacteria types inhabit various skin areas, some causing acne when pores are blocked. The skin also hosts fungi, such as yeast, which can lead to infections like athlete's foot. Despite their sometimes unwelcome presence, these microorganisms are a constant part of healthy skin.

What new insight or understanding did you gain from this video?