Smells seem to disappear after a while because our brains lie to us. Not maliciously -- they think they're helping. Learn about olfactory adaptation in this episode of BrainStuff.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices
