She is the author or co-author of numerous books, magazines, and website columns, and is a television personality on the subject of sexuality.

Schwartz also serves as the Love & Relationship Expert & Ambassador[2] for AARP and writes the column The Naked Truth.

[citation needed] While a graduate student there, she co-authored with Janet Lever the 1971 book Women at Yale, documenting the first year of co-education at that university.

She was the 2005 president of the Pacific Sociological Association, helped create the dating website Perfectmatch.com, and is a sexuality adviser for WebMD.

Schwartz is a past president of the Society for the Scientific Study of Sexuality and a charter member of the International Academy of Sex Research.