When certain bacteria in our body breaks down it gives off a odor we commonly call B.O, so who needs to use deodorant? Probably you and me.

We spend 18 billion a year trying to mask the offensive smell our bodies create.

Masking our body odor dates all the way back to ancient Egypt when they bathed in scented perfume and applying it to their armpits and other areas.

So who sweats more men or women? The fact is women have more sweat glands, but men actually sweat more.

Do we become immune to our brand of deodorant? Some scientists believe we do become immune to the brand we use every day, but personally I have never seen any proof, so if your brand is working, continue to use it.

Check out more facts about deodorants and antiperspirants with Doug's Morning Shorts below.