Spatial navigation and spatial memory play a central role in our lives. Without these abilities, we would hardly be able to find our way around and it would be difficult to remember past events.

What situations make you feel nervous, fearful, or anxious to the point that you get butterflies and feel sick to your stomach? Are there people, places, or situations in your life that evoke a ...

The vagus nerve sprawls from the brain through the body, innervating our organs and managing life support and emotion. Sally Caulwell for Quanta Magazine The original version of this story appeared in ...