The term "nervous breakdown" originated during the 1700s, when scientists believed our nervous system caused mental health symptoms. This was a way to keep people out of asylums and to maintain ...

What Is a Nervous Breakdown? A nervous breakdown (also called a mental breakdown) is a term that describes a period of extreme mental or emotional stress. The stress is so great that the person is ...

When anxiety and stress stack up—and get in the way of routine daily functioning at home and at work—a person may be experiencing what’s sometimes referred to as a nervous breakdown.

The enteric nervous system is composed of nerves that are embedded in the organs of the digestive system, which control breakdown of food, absorption of nutrients, and elimination of waste.