What If You Held in All Your Sneezes?

They show up uninvited. They shake your whole body. And they can travel up to 160 kilometers (100 miles) an hour.
When you sneeze, all the muscles in your body react,
everywhere from your eyelids right down to your sphincter.
Do you hate sneezing in awkward situations?
Are you scared of spreading germs? Well, what would happen if you held in all your sneezes?

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What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.

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