A small study found that the smell of farts, or hydrogen sulfide, can have some incredible health benefits, like helping the person who farted live longer, while the smell can quell dementia. Smelling farts can also help with heart disease, diabetes, and arthritis.
Is it good to smell your own fart?
Recent research in animals suggests that hydrogen sulfide — one of the major components of smelly gas, the one that gives it that “rotten egg” smell — might provide some health benefits in humans, from preventing heart disease to kidney failure.
Why do we like smelling our fart?
The most likely reason we like the smell of our farts is simply because we habituate easily. That means that if we fart all the time—which we all do, around half a liter a day—were very used to the smell already, says Loretta Breuning, Ph. D., who writes about brain chemistry and the social behavior of mammals.