[Knowledge] 8 hormones that affect libido and orgasm, do you know them?

Preface

Have you ever wondered why you blush when you see someone you like? Why does the body respond to sexual stimulation? And why the pleasure of orgasm is so strong and inexpressible?

None of these things come out of nowhere, but are silently manipulated by a set of complex and orderly biological systems behind the scenes, and in this set of systems, hormones play a key role.

From the onset of sexual desire to the release of orgasm to the satisfaction and calmness afterwards, each stage is inseparable from the synergistic functioning of various hormones.

If you want to better understand your body and improve the quality of your sex life, understanding these 8 hormones that are closely related to sex is a good place to start.

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8 Key Hormones

The human sexual response can be divided into four phases: arousal, plateau, orgasm and withdrawal.

During these four phases, different hormones come on at different times, controlling your emotions, physical responses and sexual experience.

Here's a look at each of these 8 hormones that have a key impact on sexual activity.

Androgens (Testosterone)

Testosterone is a hormone found in both men and women, but in higher concentrations in men, and it directly affects libido, erectile response, and the strength of the sex drive.

• In men, testosterone promotes sexual desire and natural erections by affecting the sex centres in the brain as well as blood flow and nerve responses in the penis.
• In women, although testosterone levels are lower, they can have the same effect on libido, with wide individual variations.

Low testosterone levels may result in decreased libido, erectile difficulties or a delayed response to sexual arousal, and in severe cases may even affect mood and self-identity.

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Estrogen

Estrogen is not only an important hormone for women's health, it also plays an important role in sexuality:

• It promotes vaginal lubrication by thickening the vaginal mucosa and increasing glycogen production.
• It maintains blood flow and nerve sensitivity in the vulva and vagina, helping to enhance the sensation of sexual stimulation.
• Works synergistically with testosterone to influence a woman's libido and sexual pleasure.

When oestrogen is deficient, women may experience vaginal dryness, reduced libido or difficulty in generating pleasure from sexual stimulation, which can seriously affect the quality of their sex life.

Dopamine

Dopamine is a neurotransmitter associated with pleasure, motivation and reward mechanisms, and its role in sexual activity cannot be ignored:

• Arousal: dopamine is released in large quantities in response to sexual stimulation, activating the brain's reward system and enhancing sexual desire.
• Prolongs the state of arousal: it increases blood flow to sexually sensitive areas, making the stimulation experience more vivid and long-lasting.
• Amplify the orgasmic experience: dopamine concentration peaks during orgasm, making the pleasure seem more intense, and also forming pleasurable memories in the brain, enhancing future sexual motivation.

If you think of sex as a kind of ‘rewarding behaviour’, dopamine is the power source that drives you to keep pursuing this reward.

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Oxytocin

Oxytocin, often referred to as the ‘intimacy hormone’ or the ‘trust hormone,’ is not only essential for childbirth and breastfeeding, but also plays a unique role in your sex life:

• Enhances the emotional connection with your partner, making sexual relations not only physical but also emotional.
• Helps to relieve tension and anxiety during sexual activity, promoting a sense of relaxation and security.
• Promotes uterine and pelvic floor muscle contractions during female orgasm, enhancing the pleasure experience.

Inadequate production of oxytocin may result in a lack of intimacy or a feeling of detachment and lack of fulfilment during sexual activity.

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Serotonin (5-HT)

Serotonin is a neurotransmitter that regulates mood and impulses, and plays a major role in ‘regulation and balance’ during sex.

• In men, serotonin helps to delay ejaculation and maintain the duration of the sexual act; low levels of serotonin may lead to premature ejaculation.
• In women, high levels of serotonin may reduce sexual desire and delay the build-up of arousal, thereby delaying orgasm.

Although serotonin has an ‘inhibitory’ effect on the sexual response, it interacts with hormones such as dopamine to maintain a balanced state of sexual activity.

Endorphins

Endorphins are natural ‘morphine-like substances’ in the body that bind to opioid receptors in the brain to produce pleasurable and analgesic effects.

• During sexual intercourse, endorphins relieve tension and pain, making the body more relaxed.
• After orgasm, endorphins help the body and emotions quickly regain their composure, resulting in a state of ‘contentment’ and ‘after-attachment’.
• It helps to create positive sexual memories and a psychological bond between partners.

If a person relies on endorphins during sex for emotional comfort, they may become overly dependent on sexual stimulation and even develop a sexual addiction.

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Norepinephrine

Norepinephrine is associated with physical alertness, concentration and physical arousal, and can act as a ‘double-edged sword’ in the sexual response:

• Released in moderation, it can help to arouse the body, enhance the sexual stimulus response and increase the level of sexual arousal.
• Excessive release can trigger anxiety, tension, and even interfere with an erection or orgasm.

The hormone needs to be kept within an appropriate ‘arousal threshold’ for proper sexual functioning.

Adrenaline

Adrenaline is secreted in large quantities during states of stress and arousal and provides physiological energy for sexual activity by increasing your heart rate and blood pressure:

• Promote penile or vaginal congestion response and increase stimulation sensitivity;
• Enhance concentration and mental engagement for a more focused sexual experience;
• However, if levels are too high, they can also activate the ‘flight or fight’ mechanism, inhibit the relaxation response and affect sexual performance.

In short, adrenaline needs to be used in the right amount, and too much can be counterproductive.

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Sex is driven by the brain in its entirety

When we talk about sexuality, it's easy for many people to focus solely on the response of the reproductive organs, but the real truth is - the brain is the biggest sex organ.

From the germination of the sexual urge to the release of orgasm involves not a single hormone, but a whole set of neuro-hormonal systems in high synergy.

Emotions, stress, relationship quality, and physical state all have an impact on the secretion of these hormones, which indirectly determines your sexual experience.

Therefore, improving the quality of your sex life is not only about exercising your body, but also about regulating your emotions, reducing stress, improving intimacy, and even changing the way you perceive sex.

Conclusion

Sex is a natural and complex physiological and psychological activity.

The next time you feel confused by a loss of libido, lack of pleasure, or incompatibility in your sexual relationship, you may want to ask yourself: Is there something wrong with your hormone system?

By learning to take care of your hormone system, you are also taking care of your sexual health and emotional quality.

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