The Science of Kissing book cover

The Science of Kissing

Sheril Kirshenbaum
3.48 (884 Reviews)

Overview of The Science of Kissing

Explore the surprising science behind our most intimate gesture. Kirshenbaum reveals how kissing transcends cultural boundaries while offering health benefits. Cited by psychologists and relationship experts, discover why this universal language might be more powerful than words - and what your kissing style reveals about you.

Key Themes in The Science of Kissing

  • evolutionary biology of kissing
  • sensory information exchange
  • cultural history of intimacy
  • mate compatibility signaling
  • neurochemistry of bonding

Quotes from The Science of Kissing

  • Kissing isn't just about romance-it's about biology, chemistry, anthropology, and neuroscience.

  • Darwin believed kissing was innate and hereditary, while some anthropologists argue it's purely cultural.

  • Our ability to detect red colors created a 'red equals reward' neural pathway that transferred to sexual attraction.

  • The Romans were passionate kissers with a sophisticated kissing culture.

  • Charles Dickens found the practice repulsive, particularly criticizing Catholic foot-kissing rituals as 'slavish self-abasement.'

Characters in The Science of Kissing

  • Sheril KirshenbaumAuthor and scientist exploring philematology
  • Helen FisherAnthropologist who identified three kissing needs
  • TiberiusRoman Emperor who attempted to ban kissing

About the Author

About the Author of The Science of Kissing

Sheril Kirshenbaum, author of The Science of Kissing: What Our Lips Are Telling Us, is a renowned science writer, researcher, and advocate for science communication.

A marine biologist and policy expert by training, Kirshenbaum bridges scientific rigor and public engagement in her exploration of human behavior, relationships, and societal norms. Her work at Michigan State University and roles as host of PBS’s Serving Up Science and executive director of ScienceDebate reflect her commitment to making science accessible.

Kirshenbaum co-authored the critically acclaimed Unscientific America: How Scientific Illiteracy Threatens Our Future (named a top read by President Obama’s science advisor) and contributes to platforms like Scientific American, CNN, and NPR’s Science Friday.

A 2015 Presidential Leadership Scholar and recipient of a regional Emmy for her PBS series, she combines academic credentials with media savvy to decode complex topics. The Science of Kissing has been featured in The Best American Science Writing anthology, solidifying its status as a culturally resonant examination of a universal human experience.

Download Summary of The Science of Kissing

Get the The Science of Kissing summary as a free PDF or EPUB. Print it or read offline anytime.

FAQs About This Book

The Science of Kissing explores the biological, cultural, and historical dimensions of kissing, blending evolutionary biology, psychology, and anthropology. Sheril Kirshenbaum examines why humans kiss, how kissing varies across cultures, and its role in relationships, drawing on studies about hormones, animal behavior, and historical practices.

This book is ideal for romantics, science enthusiasts, and readers curious about human behavior. Its accessible tone appeals to those interested in biology, cultural anthropology, or the intersection of science and everyday life, offering insights without requiring a technical background.

Yes, for its engaging mix of science and storytelling. While some critics note it’s lighter on technical depth, the book’s charm lies in its exploration of kissing’s history, gender differences, and fun facts—making it a delightful read for casual learners and science newcomers.

Kirshenbaum traces kissing’s origins to ancient civilizations, suggesting it may have evolved from sniffing behaviors in primates or shared food practices. She highlights its role in rituals, from Roman greetings to medieval courtship, and how cultural norms shaped its significance over time.

The book proposes kissing evolved to assess genetic compatibility via pheromones or as a bonding mechanism to release oxytocin. Kirshenbaum also compares human behavior to animals, like bonobos’ “kiss-like” gestures, to explore its biological roots.

While Western cultures often romanticize kissing, 10% of societies avoid it entirely. Kirshenbaum contrasts practices like France’s la bise (cheek kisses) with regions where kissing is taboo, linking these differences to societal values and historical traditions.

Kissing triggers dopamine (linked to pleasure) and oxytocin (bonding hormone), reinforcing emotional connections. Men may prefer sloppier kisses to transfer testosterone, while women use kissing to evaluate potential partners’ health and genetic fitness.

Yes! Kirshenbaum includes science-backed advice: maintain oral hygiene, experiment with pressure, and prioritize mutual comfort. She humorously notes that 66% of people tilt their heads right during kisses—a quirk tied to fetal positioning.

It describes animals with kiss-like actions, such as elephants intertwining trunks and bonobos using mouth-to-mouth contact for reconciliation. These behaviors suggest evolutionary parallels, though human kissing uniquely combines sensory, emotional, and cultural layers.

Some reviewers argue it prioritizes anecdotes over rigorous science, with limited citations. However, its strength lies in making complex topics accessible, blending historical trivia with light neuroscience for broad appeal.

As a marine biologist-turned-science communicator, Kirshenbaum bridges academic research and public understanding. Her work on ScienceDebate and science policy informs the book’s focus on clear, engaging storytelling about human behavior.

Kirshenbaum references a 1960s study where 15% of couples reported kissing led to love, and quotes Marcel Proust: “A kiss is a secret told to the mouth instead of the ear.” These moments underscore kissing’s emotional and scientific complexity.

Explore Your Way of Learning

The Science of Kissing isn't just a book — it's a masterclass in Science. To help you absorb its lessons in the way that works best for you, we offer five unique learning modes. Whether you're a deep thinker, a fast learner, or a story lover, there's a mode designed to fit your style.

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