Sex as a biological drive

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Menstrual and menopausal changes, for example, are a normal part of development. Hormone levels fluctuate throughout our cycles. The lowest level of libido is often prior to menstruation, although there is much variation from this pattern.

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By Saul McLeodpublished People often get confused between the terms sex and gender. Sex refers to biological differences between males and females.

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Bill Sullivan does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment. In the U. Despite these numbers, many people still consider homosexual behavior to be an anomalous choice.

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The birds, the bees, chimpanzees, humans — we all do it, but few people realise that sexual reproduction actually first evolved in creatures vastly different to ourselves. View image of What is the real story of the birds and bees? Credit: Vivien Cumming. The dawn of sexual reproduction has always been a puzzle for scientists.

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Verified by Psychology Today. Once More, With Feeling. In recent weeks there has been a flurry of interest surrounding the topic of female sexual desire, stemming largely from the publication and surrounding publicity of a book called What Do Women Want?

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According to Sigmund Freud, there are only two basic drives that serve to motivate all thoughts, emotions, and behavior. These two drives are, simply put, sex and aggression. Also called Eros and Thanatos, or life and death, respectively, they underlie every motivation we as humans experience.

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According to conventional wisdom, men have sex on the brain from puberty until, roughly, death. The Kinsey Institutewhich uses somewhat more refined measurements, reports 54 percent of men think about sex every day or several times a day. It adds this is true of only 19 percent of women, making for quite a gender gap.

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Sex refers to biological characteristics, while gender is socially determined based on those characteristics. When filling out official documents, you are often asked to provide your name, birth date, and sex or gender. But have you ever been asked to provide your sex and your gender? It may not have occurred to you that sex and gender are not the same.

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Sex drive represents a basic motivation to pursue and initiate sexual activity and gratification and is tightly regulated by sex hormones—testosterone in men and both testosterone and estrogen in women. Sex drive is thought to have evolved to ensure the survival of the species by motivating sexual behavior and hence reproduction. This is consistent with the fact that children who have not yet reached puberty, who have low levels of sex hormones and are incapable of reproduction, do not typically report strong urges for sex although they are capable of sexual arousal.

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Verified by Psychology Today. Insight Therapy. Why do you sleep at night?

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