Our sense of smell is unique in that it’s designed to be flexible and adaptable. The number of visual, auditory, and touch-related receptors in the human body are fixed. But while the types of odor receptors we have are also fixed, the receptors themselves regenerate every six to ten weeks as they’re exposed to dust and toxins in the air. Every two to four months, our entire stable of olfactory receptor neurons turns over. And in that process, with the right effort, our sense of smell can come back stronger. If an odor becomes more relevant to us, it’s possible we may produce more receptors in
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