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It is healthy to have regular, quality sex as a lack of it can be harmful to one’s health and may contribute to serious medical conditions.
Jane Wairimu (not her real name), a woman in her mid 30s developed high blood pressure and back pain.
When she sought treatment, her doctor told her one of the reasons for these conditions at that age was a lack of regular and quality sex.
Additionally, a lack of regular sex has also been linked to an increased risk of prostate cancer in men.
Wairimu abstained from sexual activity for nearly eight years. She says her husband became impotent following the birth of their third child.
“People experience periods of sexual inactivity or dry spells for various reasons, including busy schedules, being single or choosing to take a break, or adhering to religious teachings that discourage pre-marital or extra marital affairs,” explains a gynaecologist and medical consultant based at Karen Hospital.
While prolonged sexual abstinence is generally not associated with significant negative physical health effects, it can impact on emotional well being and intimacy within a relationship.
”Anxiety, depression, and stress can arise from a lack of regular sex,”** says Dr. Joseph Odhiambo. Couples who do not engage in regular sex often feel less connected. Sex triggers the release of hormones like oxytocin and endorphins, which help manage stress.
Improved memory
Oxytocin also promotes better sleep. Research suggests that frequent sexual activity is linked to improved memory, and some studies indicate that sex may help the brain grow neurons and function more efficiently.
Regular sex fosters emotional closeness between partners, improving communication. Studies show that couples who have sex more frequently tend to be happier.
However, experts emphasize that daily intercourse is not necessary—once a week is often sufficient, as recommended by medical professionals.
After the age of 20, individuals should have sex at least twice a month to avoid complications associated with a lack of regular intimacy.
According to Dr Odhiambo, a medic at Kenyatta University Teaching, Research, and Referral Hospital, sex can also boost the immune system.
One study among college students found that those who had sex one to two times per week had higher levels of immunoglobulin, an antibody crucial for immune function.
“If you are a woman experiencing menopause, regular intercourse is even more important,” explains Dr Odhiambo.
“Without it, the vaginal tissues can become thinner, more fragile, and prone to tearing or bleeding during sex, which may lead to discomfort and avoidance—worsening the issue.”
Menopausal changes, including vaginal dryness and irritation, can be treated with lubricants, moisturizers, or low-dose estrogen therapy.
It is widely believed that a lack of regular sex may contribute to prostate cancer. However, research on the topic is mixed.
While some experts suggest that frequent ejaculation might help reduce the risk, others argue that sexual activity could expose men to sexually transmitted infections that contribute to inflammation.
Pharmacist and molecular biologist Dr Steve Waluande states that men should ejaculate at least 21 times per month to reduce their risk of prostate cancer.
“Many prostate cancer patients I encounter admit to long periods without ejaculation, sometimes lasting months or even years,” he notes.
Sexual dysfunction is any issue that prevents an individual or couple from experiencing satisfaction during sexual activity.
Sexual dysfunction
Studies suggest that 45 per cent of women and 30 per cent of men experience some form of sexual dysfunction, which can occur at any stage of the sexual response cycle.
Sexual dysfunction is generally classified into four categories:
Desire disorders
Lack of interest or reduced sexual desire. Arousal disorders
Difficulty becoming physically aroused. Orgasm disorders
Delay or inability to reach orgasm. Pain disorders
Discomfort or pain during intercourse. While sexual dysfunction can affect individuals of all ages, it is more prevalent in those over 40 due to age-related health issues.
Common sexual health concerns for men:
Erectile dysfunction (inability to maintain an erection).
Delayed or absent ejaculation despite sufficient stimulation.
Premature ejaculation (inability to control the timing of ejaculation).
For women: Difficulty achieving orgasm. Insufficient vaginal lubrication. Vaginismus (involuntary tightening of vaginal muscles).
For both men and women: Low libido or lack of interest in sex. Difficulty with arousal. Pain during intercourse.
Dr Odhiambo explains that medical conditions such as diabetes, cardiovascular disease, neurological disorders, hormonal imbalances, chronic illnesses (e.g., kidney or liver disease), alcoholism, and substance abuse can all impact sexual function.
Additionally, certain medications, including some antidepressants, may contribute to sexual dysfunction.
Social psychologist Tamara Ochieng’, formerly of Maseno University, highlights that psychological factors—such as stress, anxiety, body image concerns, past trauma, and relationship conflicts—can also play a significant role.
Furthermore, some prescription and over-the-counter medications may reduce libido or interfere with sexual performance. The risk of sexual side effects is increased when an individual is taking several medications. Some over-the-counter antihistamines and decongestants can cause erectile dysfunction or problems with ejaculation, explains Dr Waluande.
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