How come you can tolerate the smell of your own farts but not someone

The main reason for this is due to the olfactory adaptation that occurs when you smell your own farts. When you fart, the gases released contain various compounds that can be unpleasant or even foul-smelling. However, your sense of smell quickly becomes accustomed to these compounds, and their odor becomes less noticeable over time. This adaptation is known as olfactory fatigue and is a natural defense mechanism to prevent sensory overload.

In contrast, when you smell someone else's farts, the odor is new to your olfactory system and thus more noticeable. This is because your sense of smell has not yet adapted to the specific blend of compounds present in their flatulence. As a result, the smell of someone else's farts can be more unpleasant and difficult to tolerate compared to your own.