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 ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. Billions of nerve cells send signals coursing through our bodies, serving as conduits ...

Brain freeze — the sharp, seconds-long headache we get from ingesting something cold — is rooted in the way our brain senses ...

Dopamine—a neurotransmitter responsible for influencing motivation, pleasure, mood and learning in the brain—has experienced a bit of fame in recent years, acting as a sort of buzzword to describe a ...

Early signs of a nerve injury are your body’s warning to get help fast. Discover what symptoms to watch for and the minimally invasive nerve repair techniques to help you recover.