What makes sweat smell?

You actually have two types of sweat glands that produce stuff that looks and feels like sweat. Most of this secreted fluid serves a beneficial purpose by helping to flush toxins out of your body. It's only the apocrine sweat gland that secretes the odor-the smell that produces part of our identity, attracts mates, and makes you pick the treadmill at the other end of the gym. These glands are located in predictable locations-including arm pits and genitals.