The Benefits of Sex for Women: What the Research Shows

Medically reviewed by Mark Strehlow, MD, Medical Director — September 2026

A satisfying sex life is linked with real benefits for women. They include better sleep, lower stress, more closeness with a partner and some pain relief. After menopause they include healthier vaginal tissue, and in older women, lower odds of high blood pressure. But most of this evidence shows that these things go together, not that sex causes them. And more isn’t always better: in large surveys, well-being rises with how often people have sex only up to about once a week.

Below is what the research actually shows, where it’s weaker than you may have read, and what to do if sex has become painful or you’ve lost interest.

Benefits of sex for women at a glance

What the research can and can’t tell you

The World Health Organization describes sexual health as physical, emotional, mental and social well-being in relation to sexuality, not just the absence of disease. [1] Studying that is hard. Most research on sex and health asks people how often they have sex and how they feel, then looks for patterns. That shows two things go together. It can’t show which one causes the other. Women who are healthier, less stressed and happier with their partners may simply have more sex, and better sex. The researchers behind the largest studies say this themselves. [2][11] Keep it in mind for every benefit below.

Does sex help you sleep?

It may help a little. In a 2025 pilot study, 14 people in live-in couples (7 of them women) wore a portable sleep monitor for 11 nights. After partnered sex or solo masturbation, they spent less time awake during the night than on nights without sex. They didn’t feel they had slept better, though, and the study was small. [4]

Stress, mood and closeness

Levels of oxytocin, a hormone tied to trust and bonding, rise during orgasm and even during a hug. [5] In a lab study of 183 couples, partners who showed more physical affection recovered faster from a stress test, as measured by the stress hormone cortisol. That study measured touch and closeness, not sex itself. [6]

Sex also seems to carry into the rest of a relationship. In two studies of newlyweds, sexual satisfaction stayed higher for about 48 hours after sex. Spouses with a stronger “afterglow” were more satisfied with their marriages, both at the start and months later. [7]

Can sex relieve pain?

There’s some evidence that it can. In two small lab studies from 1985, women who stimulated themselves to orgasm tolerated about 75% more pain while the stimulation lasted. [8] In a survey of headache-clinic patients with migraine who had had sex during an attack, 60% said it helped. But 33% said it made the headache worse. [9]

One warning: a sudden, severe headache during or right after sex, especially the first time it happens, needs medical care right away to rule out a serious cause. [10]

Sex, heart health and blood pressure

The key long-term study here followed 2,204 older U.S. adults over five years. For women, how often they had sex didn’t predict their heart risk, but how good it was did. Women who described sex with their partner as extremely pleasurable or extremely satisfying had lower odds of high blood pressure five years later. Men showed a different pattern: frequent sex was linked with a higher risk of cardiovascular events. The authors caution that their method can’t fully establish cause and effect. [11]

Vaginal and pelvic health

After menopause, lower estrogen can leave vaginal tissue thinner and drier. At least half of women entering menopause show signs of this, which is called genitourinary syndrome of menopause. Cleveland Clinic notes that regular sexual activity is good for vaginal tissue because it increases blood flow there. [12][21]

You may have read that sex strengthens the pelvic floor and improves bladder control. The research actually looked at it the other way around. Among women evaluated for sexual concerns, those with stronger pelvic floor muscles reported better arousal and orgasm. [13] That study didn’t show that sex builds those muscles. If you leak urine, pelvic floor (Kegel) exercises are what help. It’s worth having a clinician check your technique: done incorrectly or too forcefully, Kegels can tighten vaginal muscles and make sex painful. [14]

Does sex boost your immune system?

This claim comes from one 2004 study of 112 college students. Those who had sex once or twice a week had higher levels of an antibody called immunoglobulin A (IgA) in their saliva. Those who had sex three or more times a week had levels similar to those who had none. [15] It’s an interesting finding, but it doesn’t show that sex keeps you from getting sick.

Is it good to have sex every day?

There’s no medically recommended number. In three studies with more than 30,000 people, those in relationships were happier the more often they had sex, but only up to about once a week. Beyond that, they were no happier. The pattern held for women and men. [2] When researchers asked married couples to double how often they had sex for three months, the couples did have more sex. But they reported less desire and less enjoyment. [3]

So daily sex is fine if you both want it and it’s comfortable. It isn’t a health goal in itself. One practical note: women are more likely to get a urinary tract infection after sexual activity, so if you get UTIs often, tell your clinician. [17]

When sex is painful or desire is low

Sexual problems are common. In a national survey of more than 31,000 U.S. women, 43% reported a sexual problem, and 12% had one that caused them real distress. Distress was most common between ages 45 and 64. [18] About 3 in 4 women have pain during sex at some point in their lives. [19]

Common causes include:

• Lower estrogen around perimenopause and menopause, after childbirth and while breastfeeding, which can cause dryness and pain [19][21]
• Medications, including many antidepressants and some hormonal birth control [20]
• Pelvic floor muscle problems, endometriosis, vulvodynia and infections [19]
• Stress, depression, anxiety and relationship strain [20]

Most of these have options, but the right one depends on the cause, so an evaluation comes first. Depending on what’s found, options include lubricants and vaginal moisturizers, prescription vaginal estrogen, pelvic floor physical therapy, a change of medication, and counseling or sex therapy. [19][20][21] Low desire is worth raising when it bothers you or strains your relationship. There’s no number you’re supposed to hit. [20]

How Rock Creek Wellness can help

If sex has become painful, your desire has faded, or menopause has changed things, start by finding out why. We’re a physician-led hormone clinic in Leawood, and every visit starts with an evaluation. Your provider looks at your symptoms, hormones, medications and health history, with labs where they’re needed, before recommending anything.

What comes next depends on what the evaluation shows:
– If low estrogen is part of the picture, vaginal estrogen is one option your provider may prescribe.
– If broader menopause symptoms are part of it, we’ll also discuss our hormone care for women, along with simpler steps such as lubricants and moisturizers.
– If you’d be better served by an OB/GYN or a pelvic floor physical therapist, we’ll refer you.

Sexual wellness consultations are private and free. Book a free consultation

Looking for the men’s side? Read the benefits of a healthy sex life for men.

Common questions

Does masturbation have the same benefits?
For some benefits, yes. In the sleep study above, solo masturbation and partnered sex had similar effects on sleep. [4] In the pain studies, women stimulated themselves. [8] Benefits tied to a partner, such as the afterglow in a relationship, come from partnered sex. [7]

Is it normal for sex drive to change with age?
Yes. Desire often shifts with perimenopause, menopause, pregnancy and the months after birth, as well as with stress, health and medications. [20] Distressing sexual problems are most common in midlife. [18] A change is worth raising if it bothers you, and it isn’t something you have to accept.

How often should a woman have sex to be healthy?
There’s no medical target. In large studies, well-being rose with frequency up to about once a week and then leveled off. [2] What mattered most for women’s blood pressure in the long-term study was how satisfying sex was, not how often it happened. [11]

Sources

1. World Health Organization. Sexual health (health topic). https://www.who.int/health-topics/sexual-health
2. Muise A, Schimmack U, Impett EA. Sexual frequency predicts greater well-being, but more is not always better. Social Psychological and Personality Science. 2016;7(4):295–302. https://journals.sagepub.com/doi/abs/10.1177/1948550615616462
3. Loewenstein G, Krishnamurti T, Kopsic J, McDonald D. Does increased sexual frequency enhance happiness? Journal of Economic Behavior & Organization. 2015. Summary: Carnegie Mellon University news, May 2015. https://www.cmu.edu/news/stories/archives/2015/may/more-sex-does-not-lead-to-happiness.html
4. Lastella M, et al. Sleep on it: a pilot study exploring the impact of sexual activity on sleep outcomes in cohabiting couples. Sleep Health. 2025;11(2):198–205. https://pubmed.ncbi.nlm.nih.gov/40016080/
5. Cleveland Clinic. Oxytocin: what it is, function and effects. https://my.clevelandclinic.org/health/articles/22618-oxytocin
6. Ditzen B, et al. Intimacy as related to cortisol reactivity and recovery in couples undergoing psychosocial stress. Psychosomatic Medicine. 2019;81(1):16–25. https://pubmed.ncbi.nlm.nih.gov/30134358/
7. Meltzer AL, et al. Quantifying the sexual afterglow. Psychological Science. 2017;28(5):587–598. https://pubmed.ncbi.nlm.nih.gov/28485699/
8. Whipple B, Komisaruk BR. Elevation of pain threshold by vaginal stimulation in women. Pain. 1985;21(4):357–367. https://pubmed.ncbi.nlm.nih.gov/4000685/
9. Hambach A, et al. The impact of sexual activity on idiopathic headaches: an observational study. Cephalalgia. 2013;33(6):384–389. https://pubmed.ncbi.nlm.nih.gov/23430983/
10. Cleveland Clinic. Can an orgasm cause a headache? (reviewed by Nestor Galvez-Jimenez, MD, 2023). https://health.clevelandclinic.org/orgasm-headache
11. Liu H, Waite LJ, Shen S, Wang DH. Is sex good for your health? A national study on partnered sexuality and cardiovascular risk among older men and women. Journal of Health and Social Behavior. 2016;57(3):276–296. https://pubmed.ncbi.nlm.nih.gov/27601406/
12. Cleveland Clinic. Vaginal atrophy (last updated 2023-04-10). https://my.clevelandclinic.org/health/diseases/15500-vaginal-atrophy
13. Lowenstein L, et al. Can stronger pelvic muscle floor improve sexual function? International Urogynecology Journal. 2010;21(5):553–556. https://pubmed.ncbi.nlm.nih.gov/20087572/
14. MedlinePlus (U.S. National Library of Medicine). Kegel exercises – self-care (reviewed 2025-01-01). https://medlineplus.gov/ency/patientinstructions/000141.htm
15. Charnetski CJ, Brennan FX. Sexual frequency and salivary immunoglobulin A (IgA). Psychological Reports. 2004;94(3 Pt 1):839–844. https://pubmed.ncbi.nlm.nih.gov/15217036/
16. Frappier J, et al. Energy expenditure during sexual activity in young healthy couples. PLoS One. 2013;8(10):e79342. https://pubmed.ncbi.nlm.nih.gov/24205382/
17. MedlinePlus. Urinary tract infection – adults (reviewed 2024-07-23). https://medlineplus.gov/ency/article/000521.htm
18. Shifren JL, et al. Sexual problems and distress in United States women: prevalence and correlates. Obstetrics & Gynecology. 2008;112(5):970–978. https://pubmed.ncbi.nlm.nih.gov/18978095/
19. Cleveland Clinic. Dyspareunia (painful intercourse) (reviewed 2024-07-25). https://my.clevelandclinic.org/health/diseases/12325-dyspareunia-painful-intercourse
20. Cleveland Clinic. Low libido (low sex drive) (updated 2025-04-21). https://my.clevelandclinic.org/health/diseases/15216-low-libido-low-sex-drive
21. MedlinePlus. Vaginal dryness (atrophic vaginitis) (reviewed 2025-07-03). https://medlineplus.gov/ency/article/000892.htm