This transformative guide completely breaks down our current understanding of biological sex and gender diversity. Introducing readers to seven variations of human sex, commonly considered intersex, the book challenges the myth that sex and gender are exclusively binary and explores the inherent diversity of biological sex and its relationship to gender identity and expression, and the impact this has on society. Examining historical, linguistic and socio-cultural understandings of sex and gender, as well as genetic and scientific definitions, the book is an important resource for dismantling gender and sexuality-based discrimination and promoting understanding and inclusivity. Co-written by one of the world's leading intersex activists and a highly respected scholar in biological sciences, and accompanied with detailed anatomical illustrations throughout, this pioneering text is the essential introduction to gender and sex diversity for gender studies, women's studies, biology and genetics courses, as well as professionals working with intersex and trans communities.

Ryan and Selena Frederick were newlyweds when they landed in Switzerland to pursue Selena's dream of training horses. Neither of them knew at the time that Ryan was living out a death sentence brought on by a worsening genetic heart defect. Soon it became clear he needed major surgery that could either save his life--or result in his death on the operating table. The young couple prepared for the worst. When Ryan survived, they both realized that they still had a future together. But the near loss changed the way they saw all that would lie ahead. They would live and love fiercely, fighting for each other and for a Christ-centered marriage, every step of the way. Fierce Marriage is their story, but more than that, it is a call for married couples to put God first in their relationship, to measure everything they do and say to each other against what Christ did for them, and to see marriage not just as a relationship they should try to keep healthy but also as one worth fighting for in every situation. With the gospel as their foundation, Ryan and Selena offer hope and practical help for common struggles in marriage, including communication problems, sexual frustration, financial stress, family tension, screen-time disconnection, and unrealistic expectations.

"International sex researcher, neuroscientist, and frequent contributor to The Globe and Mail (Toronto) Debra Soh [discusses what she sees as] gender myths in this ... examination of the many facets of gender identity"--

It's obvious why only men develop prostate cancer and why only women get ovarian cancer. But it is not obvious why women are more likely to recover language ability after a stroke than men or why women are more apt to develop autoimmune diseases such as lupus. Sex differences in health throughout the lifespan have been documented. Exploring the Biological Contributions to Human Health begins to snap the pieces of the puzzle into place so that this knowledge can be used to improve health for both sexes. From behavior and cognition to metabolism and response to chemicals and infectious organisms, this book explores the health impact of sex (being male or female, according to reproductive organs and chromosomes) and gender (one's sense of self as male or female in society). Exploring the Biological Contributions to Human Health discusses basic biochemical differences in the cells of males and females and health variability between the sexes from conception throughout life. The book identifies key research needs and opportunities and addresses barriers to research. Exploring the Biological Contributions to Human Health will be important to health policy makers, basic, applied, and clinical researchers, educators, providers, and journalists-while being very accessible to interested lay readers.

Binary is the ultimate guide for understanding and dismantling the sex spectrum, the new cultural belief that sex exists on a continuum and that male and female are social constructs. By analyzing its ten most popular arguments, Zachary Elliott reveals how the tenets of the sex spectrum deny evolution, development, and genetics. Using the primary biology literature, the book provides the reader with a comprehensive scientific understanding of how the two sexes are universal phenomena and how complex genetic networks consistently result in a simple yet profound outcome: male or female. Zachary Elliott is the founder of the Paradox Institute, a research group that specializes in teaching the biology of sex and sex differences to the public. Zach has been researching, reading, and writing about sex differences since 2017 and has written two other books on the subject—Sex Differences: A Land of Confusion and The Gender Paradox: Discrimination and Disparities in the Postmodern Era. He is also a writer and producer of more than twenty animated videos on the biology of sex, using his expertise in motion graphics and design to effectively communicate biological concepts.

This book introduces cutting-edge studies on the spectrum of sex. The sex spectrum can be understood as an interwoven mechanism sustaining graded phenotypes between the two sexes. The book overviews three elements that develop the sex spectrum: genetics, the endocrine system, and the environment. Part I discusses the genetic regulation during sex determination, which often results in a mixture of two sexes or sex reversal. The evolutionary aspects of the genetic determinants are also discussed. Part II presents the involvement of endocrine regulation in the sex spectrum, which covers a broad range of phenotypic events, including sexual behavior and metabolism. Interestingly, sex hormones can also act as sex determinants. Finally, Part III shows that intrinsic factors, such as sex-determining genes and sex hormones, are not the only factors in sex development. The environment surrounding organisms, such as symbiosis and metabolism, act on the sex as critical factors, generating the sex spectrum. Determination and development of the two sexes have been a topic of great interest and a long-standing issue in biology. The book updates the conventional view that biological sex is fixed after birth and sets new perspectives for understanding sex as a spectrum manifested in multiple phenomena. Each chapter contributed by leading experts explains the sex spectrum in various organisms and their underlying mechanisms from the latest ongoing studies. The book provides a valuable resource for not only experts in developmental biology, physiology, and medical science, but also non-scientists and anyone interested in the topic.