We smell different as we age. Here's why.

Popular Science 

We smell different as we age. An odor-producing molecule 2-nonenal is only part of the story. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. There's a scientific explanation behind an aging body's distinct scent, but the chemistry only tells half the story. Breakthroughs, discoveries, and DIY tips sent six days a week.