RJ Mackenzie

Contributor

More from RJ Mackenzie

couple in bed
Ask Us Anything

Do aphrodisiacs work? What the science says.

By RJ Mackenzie

Beautiful cat on red background
Animals

Why do cats make biscuits?

By RJ Mackenzie

man sneezing on a colorful, illustrated background
Ask Us Anything

Why do some people sneeze so loudly?

By RJ Mackenzie