Bat Sheva Marcus, LCSW, MPH, PhD

Bat Sheva Marcus wrote her dissertation on women and vibrator use while earning her Doctor of Philosophy in human sexuality from the Institute of Advanced Study of Human Sexuality. She also has a Master’s in public health from the same institution. She is a licensed social worker with a Master’s degree from Columbia University. She is certified both as a sexuality counselor and supervisor by the American Association of Sex Educators, Counselors and Therapists.

Dr. Marcus is a founder of Maze Women’s Sexual Health and has served as its director since the launch of the Center in 2000. Although in recent years her work has focused on the area of female sexuality, in the past she has also worked as the executive director of not-for-profit institutions and corporations, medical practices and laboratories.

She is a frequent guest on television and radio, has lectured both nationally and overseas on a wide variety of women’s issues and has been extensively profiled in local and national publications.


Paul Nelson, MA, CCMA

Paul Nelson has been in education for over 20 years, and is AASECT certified. He moved into sex education when, as a prostate cancer survivor, he discovered there was almost no information for men with ED that was not a commercial. In 2008 he launched, which quickly became the largest online community for erectile dysfunction. Eventually a group of men formed the Erectile Dysfunction Foundation. Paul serves as its president.

Paul has been featured on ABC News, the BBC, and the New York Times and is a speaker at men’s groups across the country. He also consults for the National Geographic Channel program, “How Sex Works.” His work appears in the Prostate Cancer Research Institute, The Connecticut Magazine as well as blogs for Betty Dodson. He is a contributing author for Men’s Health Network and is currently producing, a comprehensive online education program for men’s reproductive health. Paul is also a Peer Review Panelist on Cancer Research for the Department of Defense.