Except for premature ejaculation, men suffer from erectile dysfunction (ED) more than any other sexual dysfunction. ED is not a disease specifically caused by aging, nor is it an “old man’s disease.” It affects about 10 percent of men per decade of life; that is, 20 percent of men in their 20s, 40 percent of men in their 40s, 70 percent of men in their 70s, etc. And recent demography studies are reporting greater numbers of younger men having ED. For example, a 2018 poll of 2,000 men found the largest affected age group were those in their 30s, with…


One of these days, I will finish writing a book titled, “The Top Ten Myths about Human Sexuality.” But every time I begin writing this book, I find it impossible to fit all 100+ human sexuality myths people need to have debunked for their health, happiness, and safety, into a single top ten list. I guess I need to write a book titled, “The Top 100+ Myths about Human Sexuality.” In any case, this paper is about one of these top ten, 100+ myths: Menopause causes women to lose their desire to have sex.


Here is a brief read about an important topic: Gender Equity.


Male sexual anatomy is mostly presented only in terms of reproduction, even though reproduction is only a fraction of what drives male sexuality. True discussions of male sexual anatomy must include the concept of pleasure, the greatest part of what drives male sexuality. A simple thought-experiment demonstrates just how great this pleasure is: Ask any adult male to calculate the number of times he has had (and will have) sex over his lifetime, then ask him to divide this number into two categories: (1) The number of times he had (and will have) sex for reproductive purposes and (2) The…


Female sexual anatomy is mostly presented only in terms of pregnancy and reproduction, even though pregnancy and reproduction are only fractions of what drives female sexuality. True discussions of female sexual anatomy must include the concept of pleasure, the greatest part of what drives female sexuality. A simple thought-experiment demonstrates just how great this pleasure is: Ask any adult female to calculate the number of times she has had (and will have) sex over her lifetime, then ask her to divide this number into two categories: (1) The number of times she had (and will have) sex for reproductive purposes…


Although our definitions of sexuality are different from when we are children, adolescents, and adults, we are none-the-less sexual creatures throughout our lifespans. And throughout our lifespans, our health, happiness, and safety are dependent on us understanding sexuality. Understanding sexuality, as understanding anything else that matters, begins with learning words.

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This paper is about the first ten sexual words children must learn for their health, happiness, and safety.


Humans are a weird bunch. Not knowing the definition of something, rarely stops us from debating, judging, or even doing this “something.”


If you are interested in orgasms — and who in their right-mind is not, then you are in the right place, because this paper is about “where” orgasms occur.

Biological factors are associated with genetics, physiology, and anatomy.

Psychological factors are associated with self, identity, feelings, behaviors, thoughts, and perceptions.

And sociological factors are associated with culture, society, groups, and ethics.

Masters and Johnson

The sexual response cycle was scientifically discovered by William Masters (b. 1915, d. 2001) and Virginia…


I want to make you think differently about sex education.


Despite sex education in general being controversial, most people support sex education when it is applied in a comprehensive fashion. Comprehensive sex education is driven by medical and scientific evidence to facilitate the development of sexually healthy people. It has tremendous benefits for a person’s psychological and physical well-being. For example, comprehensive sex education is associated with lower rates of unprotected sex, sexually-transmitted infections, unwanted pregnancies, and sexual assaults.

Don Lucas

I am a Professor of Psychology at Northwest Vista College in San Antonio Texas. My research focus is human sexuality. I also host a YouTube channel, 5MIweekly.

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