
Sex and Psychology Podcast Episode 322: Why Bisexuality Is On The Rise
Aug 27, 2024
Join Martin Monto, a Professor of Sociology at the University of Portland, as he explores the rising tide of bisexuality in today’s society. Monto discusses how definitions of bisexuality vary and the impact of gender differences, especially why more women than men identify as bisexual. He shares insights from a recent study revealing trends in bisexual identification and behavior over time. Listeners will gain a deeper understanding of the biopsychosocial factors influencing sexual orientation and the changing perceptions around bisexuality.
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Definitions Shape Bisexuality Rates
- Bisexuality is defined variably across studies, including attraction, behavior, and identity measures.
- These definitional differences produce different prevalence estimates and complicate comparisons over time.
Student Prompted The Research
- Martin Monto began this study after a student noticed many peers identified as bisexual and wondered if population data matched lived experience.
- He used the General Social Survey because it had repeated, national questions on sexuality dating back to 1989.
Bisexual Identity Has Grown Fastest
- Bisexual identification rose markedly from ~1.2% (2008–10) to ~2.7% (2012–18) and ~4.5% in 2021.
- Gay/lesbian identity rose too but much less, so most identity growth comes from bisexual identification.

