Incredible phenomena are happening in your body all the time. But have you ever stopped to think about what keeps you breathing, how information travels from your senses to your brain instantly, or any of the other amazing things that constantly happen to keep you alive? Now you can jump inside the human body and participate in these physiological processes to help Fred outrun danger in the woods.

This interactive requires Flash, and may not work on mobile devices. Contains mild peril and a few drops of blood.

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