The Science Behind Orgasm and Why Some People Struggle to Reach Them

An orgasm is the body’s way of rewarding us for sex. It is often described as the peak of sexual pleasure, characterized by a powerful release of physical and emotional tension that provides deep satisfaction. But behind this seemingly simple moment is a complex biological and neurological process involving hormones, nerves, and blood flow.  

While most people experience orgasms at some point, few truly understand the orgasm science behind what occurs in the body and brain during the process.

It is also important to note that for many women, reaching orgasm isn’t always easy, even with the right sex positions for orgasm, plenty of lubricants, sex toys, or exploring erogenous zones. Factors like stress, emotional connection, or even using condoms can subtly affect stimulation and sensitivity.

Durex Arabia helps you explore the science behind orgasms, from the stages of arousal to climax, and uncover why some people struggle to reach orgasm despite perfect circumstances.

Orgasm science

Orgasms vary slightly between men and women. For men, orgasms usually happen with ejaculation, but for women, they can differ in intensity, length, and the number of pelvic muscle contractions. Explore the science behind female orgasms. 

1. Excitement 

The excitement phase signals the beginning of sexual arousal. During this phase, stimulation such as touch, sight, sound, or even thoughts activates erogenous zones and increases blood flow to the genitals. 

Heart rate, breathing, and muscle tension increase, and the brain releases dopamine, a neurotransmitter linked to pleasure. For men, this may result in an erection, while for women, the vagina lengthens and begins to lubricate.

This stage establishes the foundation for orgasm and can be influenced by relaxation, comfort, and foreplay intensity.

Related Read: If you have experienced trouble, here are some of the most useful things to know if you can’t orgasm.

2. Plateau

The plateau is the phase of the human sexual response cycle that occurs just before orgasm, where sexual arousal peaks and stabilizes. The body becomes highly sensitive, with the clitoris or penis fully engorged; nipples may harden, and muscle tension continues to increase. 

The mind shifts into a focused state, blocking distractions and gearing up for climax. Blood pressure and heart rate rise, and the lower part of your vagina becomes more engorged. 

This is where communication, pleasure gels, and comfortable sex positions can boost pleasure and help partners synchronize for a simultaneous orgasm.

3. Actual orgasm

An orgasm typically lasts about 60 seconds and happens when the built-up tension during arousal is released through rhythmic contractions of the uterus, vagina, and clitoris. 

The brain releases a surge of feel-good chemicals such as oxytocin, dopamine, and serotonin, producing feelings of euphoria, warmth, and relaxation. Plus, some women even report that their eyes roll back or they exhale forcefully and experience a significant stress release. 

4. Post-orgasm 

Finally, there is a post-orgasm phase. For women, this can occur very quickly, sometimes within a few minutes. During this period, vital signs return to normal, breathing slows, and heart rate decreases as a wave of relief and satisfaction washes over you. 

Why do some people struggle to reach orgasm? 

Various factors can influence a person’s ability to achieve orgasm, including: 

1. Biological factors

Several biological factors can interfere with achieving orgasm. Hormonal imbalances, such as low estrogen or testosterone levels, can reduce sexual response and orgasmic ability.

Certain medications, like antidepressants (especially SSRIs), blood pressure drugs, and hormonal contraceptives, can also delay or block orgasm by disrupting neurotransmitter function.

Additionally, illnesses like sclerosis, diabetes, or effects of pelvic surgeries, pelvic floor dysfunction, and menopause-related dryness can impair genital sensation. Understanding the physical causes of these issues is essential for finding suitable treatment or therapy.

2. Psychological factors

Emotional and mental states greatly affect sexual response. Factors such as anxiety, depression, past trauma, or pressure to perform can interfere with the brain’s capacity to relax, which is essential for achieving orgasm.

Overthinking or concentrating too much on the goal rather than the experience can diminish enjoyment. Additionally, emotional disconnection from a partner, low self-esteem, or worries about body image may further decrease arousal.

Practicing mindfulness, keeping open communication, and seeking therapy can assist in overcoming these psychological obstacles and promote a healthier sexual mindset.

3. Social and relationship factors

Society and relationships significantly influence sexual experiences. Cultural taboos, lack of sexual education, or feelings of guilt and shame around pleasure can hold people back from exploring their own bodies and needs. 

In relationships, poor communication or mismatched expectations about sex can lead to frustration and damage trust. Emotional intimacy is essential; without it, physical connection often feels incomplete. 

Having regular conversations about desires, boundaries, and comfort levels can strengthen partners' bond and increase the chances of mutual satisfaction and orgasm.