Scientists who study sex are called sexologists. They come from a variety of backgrounds, including:

* Psychologists: Focus on the psychological aspects of sex, such as sexual motivation, arousal, and dysfunction.

* Biologists: Study the biological and physiological aspects of sex, including sexual development, reproduction, and hormones.

* Sociologists: Examine the social and cultural influences on sexual behavior and attitudes.

* Anthropologists: Study sex across different cultures and historical periods.

* Physicians: Treat sexual health issues and provide sexual education.

It's important to remember that the field of sexology is broad and encompasses many different areas of study.