Article on the unknown sixth sense of a human body..

3 Smart Things About Our Sixth Sense: Interoception

Seeing the Sixth Sense

Proprioception is our silent “sixth” sense. Neuroscience is just beginning to understand it. - Vox

In the Gut's 'Second Brain,' Key Agents of Health Emerge

Scientists discover genetic markers behind human 'sixth sense

Proprioception is our silent “sixth” sense. Neuroscience is just beginning to understand it. - Vox

In Some Ways, Your Sense of Smell Is Actually Better Than a Dog's, Science

Mapping emotions in the body: Study reveals physical topography of feelings

11 Animals That Have a Sixth Sense

IJMS, Free Full-Text

Was a Tiny Mummy in the Atacama an Alien? No, but the Real Story Is Almost as Strange - The New York Times

Seeing the Sixth Sense

Interstitium: Scientists say they've discovered a new human organ