Reproduction, gender differences, personal hygiene, masturbation, sexual ethics, and other skills are taught in the United States from the first grade. In college, we talked about what we knew about the reproductive process, sexual maturity, menstruation, sperm, sexual limitations, and more. High school students learn about marriage, family, sexual attraction, homosexuality, sexually...

The body's pain is blunted by the magic of sex hormones. Sex acts as a powerful natural pain reliever, especially when it comes to relieving symptoms like arthritis and headaches. Regular sex life is an important secret for men to maintain their sexuality. Having fun sex can boost a man's libido. However, many middle-aged men have little or no interest in sex after age 50. Some men have no...