# Why Libido Disappears and When Hormones Are to Blame
Desire for closeness, intimacy, sexual appetite – these are all natural parts of human life, yet they are rarely discussed in everyday conversations. And yet decreased libido is among the most common issues that people address with doctors, psychologists, or quietly on their own. If someone finds themselves in a phase where they simply "aren't in the mood," and this phase lasts longer than a few weeks, they will sooner or later start asking: what is actually happening and why?
The answer is rarely simple. Libido is not just a matter of the body or just a matter of the mind – it is a delicate balance of both. And hormones play a role in this mechanism that is far greater than most people realise.
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Hormones as conductors of intimate life
Imagine hormones as the conductors of an orchestra. Each has its own part, its own rhythm, and if one starts playing out of tune or falls silent entirely, the whole symphony falls apart. This is exactly how the hormonal system functions in relation to sexual desire.
Testosterone is the best-known player in this context – and not only in men. Yes, women have it in their bodies too, just in much smaller amounts, and yet it plays a key role in their sexual appetite as well. Research repeatedly shows that a decline in testosterone – whether natural, caused by age, or triggered by other factors – leads to a noticeable reduction in interest in sex. In men, this process is called andropause; in women, it most commonly manifests during perimenopause and menopause.
Oestrogen is another key hormone, particularly in women. It keeps the vaginal mucous membranes hydrated, influences mood and the overall sense of wellbeing. When its levels drop – for example after childbirth, during breastfeeding, or at menopause – women often experience not only reduced libido but also physical discomfort during intercourse, which further complicates the situation. Progesterone, in turn, has more of a calming effect and can naturally dampen desire during certain phases of the menstrual cycle.
A less well-known but equally important player is prolactin – a hormone associated with breastfeeding, but also with stress. Elevated prolactin levels (hyperprolactinaemia) can virtually erase libido, and this applies to both sexes. Cortisol, the stress hormone, acts similarly; when the body is under prolonged strain, it produces it in large quantities. Chronic stress is literally an enemy of intimacy – and this is entirely physiological, not merely psychological.
The thyroid gland tends to be overlooked in the context of libido, yet its influence is fundamental. Both hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid) can significantly affect sexual desire. Fatigue, weight gain, depressive moods – these are all accompanying symptoms of thyroid disorders that indirectly, yet very effectively, suppress libido.
When hormones are truly to blame and when we should look elsewhere
It is important to distinguish when a decline in libido is genuinely hormonal in origin and when the causes lie elsewhere. Hormonal imbalance is just one of many possibilities – and not always the most likely one.
Take a real-life example: a thirty-three-year-old woman, mother of two children, working full time, begins to notice that her interest in sex has virtually disappeared. Exhausted, overloaded, without a moment to herself. Her doctor might initially assume a hormonal cause, but after a thorough examination, it turns out that her hormone levels are entirely normal. The cause is chronic exhaustion, lack of sleep and accumulated emotional stress. This is a situation experienced by thousands of people – and hormonal treatment would not help them in this case at all.
On the other hand, a forty-year-old man who complains of fatigue, weight gain and a complete loss of interest in sex may genuinely have clinically low testosterone levels. His condition is not "just in his head" – it is physiologically determined and deserves appropriate medical attention.
So how can you tell when it's about hormones? The foundation is a blood test, which reveals the levels of key hormones. An endocrinologist or gynaecologist can correctly interpret the results and suggest solutions. Self-help and guesswork will not get you far here – and attempts at self-treatment may make the situation worse rather than better.
However, there are also warning signs that suggest the cause may be hormonal. These include a sudden, unexplained decline in libido without any apparent change in life circumstances, fatigue that does not subside even after adequate sleep, mood changes without obvious reason, or physical symptoms such as mucosal dryness, weight gain or hair loss. If these symptoms occur together, a visit to the doctor is absolutely warranted.
Psychological causes should not be underestimated. Depression, anxiety disorders, unresolved relationship conflicts, trauma, or simply boredom within a relationship – all of these can suppress libido just as effectively as hormonal imbalance. The World Health Organization in its recommendations on sexual health emphasises that sexual wellbeing is an inseparable part of overall health and deserves the same attention as any other aspect of healthcare.
Medications are another category that tends to be overlooked. Antidepressants from the SSRI group are notoriously known for reducing libido as a side effect. The same applies to antihypertensives, antihistamines, hormonal contraceptives and prostate medications. If someone starts taking a new medication and soon notices a decline in sexual desire, it is very likely that these two things are directly related. However, it is definitely not advisable to stop taking medications without consulting a doctor – this could bring about more serious problems than reduced libido.
What can be done and how to support natural hormonal health
The good news is that hormonal balance can be influenced to a significant extent through lifestyle – and this can be done before reaching for medical intervention. There are no miracle recipes involved here, but rather the basic pillars of a healthy life that have a demonstrable effect on the hormonal system.
Sleep comes first. During deep sleep, the body produces testosterone and regulates cortisol. Chronic sleep deprivation can reduce testosterone levels by tens of percent – this is confirmed by research published in the Journal of the American Medical Association. Seven to nine hours of quality sleep is not a luxury; it is a physiological necessity.
Movement and physical activity have a direct effect on hormones. Strength training increases testosterone levels, aerobic exercise reduces cortisol and improves insulin sensitivity. There is no need to spend hours in the gym – regular, moderately intense activity three to four times a week is sufficient to improve the hormonal environment in the body.
Diet plays a role that tends to be underestimated. Healthy fats are absolutely essential for hormone production – cholesterol is a precursor to sex hormones. Avocado, olive oil, nuts, fatty fish – these are foods that support hormonal health. Conversely, industrially processed foods, excess sugar and alcohol disrupt hormonal balance. Zinc, magnesium and vitamin D are micronutrients whose deficiency is directly linked to lower testosterone levels.
Stress management is not just a fashionable phrase. Meditation, breathing exercises, time spent in nature or simply regular moments of quiet have a measurable effect on cortisol levels. And as mentioned, cortisol is one of the greatest enemies of libido. "The body cannot be in survival mode and reproduction mode at the same time," says endocrinologist Sara Gottfried, author of The Hormone Cure – and this statement captures the entire essence of the problem.
Herbal adaptogens such as ashwagandha, maca or rhodiola have been receiving increasing scientific attention in recent years. Studies suggest that ashwagandha may help reduce cortisol and support testosterone levels, while maca has traditionally been associated with supporting libido. These are dietary supplements, not medications, but as a supportive measure they may have their place – especially in combination with overall lifestyle changes.
If lifestyle changes are insufficient and symptoms persist, modern medicine offers various forms of hormonal therapy – from hormone replacement therapy (HRT) for women in menopause to testosterone therapy for men with clinically proven deficiency. These therapies have their risks and benefits, and their prescription should always take place under the supervision of a specialist. They are certainly not a solution for everyone, but for those who genuinely suffer from hormonal imbalance, they can bring significant relief and an improvement in quality of life.
Libido is ultimately a kind of barometer of overall health – physical, psychological and relational. When it disappears, the body or mind is sending a signal that something is not right. This signal is worth taking seriously, investigating its cause, and approaching it with care, openness and without unnecessary shame. Hormonal health is part of overall wellbeing and deserves the same attention as care for the heart, gut or psyche – and the good news is that it is never too late to start.
