I found the section in the text about how taste and smell relate to be very interesting. I found it more so interesting this past week because I had a head cold. My sense of smell has been impaired to the point of not being able to really smell fragrances at all. This came to my attention the other night when I was eating salmon for dinner. If you have ever eaten any kind of fish, you know there is a strong and distinct taste and smell. Upon my first few bites, it tasted very bland, and I could not taste the strong "fish" taste you would normally get. I've obviously noticed this phenomenon before, but it was ironic timing because we just-so-happened to learn about this in our text. I would not advise anyone to get a head-cold to experience this, but next time you do; be aware of how your senses are effected.
The link below better explains the science behind this phenomenon.