Why Do Old People Smell?
The 'old people smell' is actually caused by a chemical, called 2-Nonenal, that old people secrete through their skin.
What Does Sweat Smell Like?
Sweat itself is odorless. It's the bacteria on the skin that mingles with it and produces body odor.
8 Foods That Could Be Affecting Your Body Odor
Yes, you are what you eat, but you are also the odor of what you eat, depending on—ahem—what you eat.