When danger lurks, instinct keeps us safe. It compels us to run from a burning building or wrestle a knife-wielding attacker ...

Communication between the body and the nervous system is called interoception and it allows the brain to sense internal states, such as hunger, pain, or heart rate. The vagus nerve is an important ...

Have you ever read something and felt it in your body? Let's say you read about muscle cramps and then suddenly as you read you start feeling like you are cramping too. Does this happen? Well, if your ...

The original version of this story appeared in Quanta Magazine. It is late at night. You are alone and wandering empty streets in search of your parked car when you hear footsteps creeping up from ...