For example, we feel putting on clothes, but then very quickly, aren’t aware of that sensation anymore. Similarly, when you encounter a smell, the sensation begins to diminish. While I am glad that I become less aware of a foul smell, why does this happen? Would it not be safer to remain aware of bad smells so that you remain deterred from bad food or potential disease exposure? At the same time, does this happen with other senses like hearing? I remain constantly aware of the noise of my fan if I leave it on, so if that sense doesn’t diminish, why is that?