Why do people like sad music?

1.hormone

Definition:

Any of various chemicals in the body that are carried by the blood and that influence the body's growth and how it works.

Example:

The hormone is known to affect reproduction and gonadal function, and to have an influence on the growth of tumours.

2.lactation

Definition:

The process in which a woman or female animal produces milk.

Example:

Females are often limited further by the necessity to rear offspring by brooding or lactation.

3.comforting

Definition:

Making you feel less worried, unhappy, or upset.

Example:

It was comforting to see the lights of home.