Low libido is one of the most common sexual health concerns, and it rarely has a single cause. Hormones, sleep, stress, medications, diet, exercise, and relationship dynamics all play a role in how much sexual desire you feel on any given week. The good news is that most of these factors are modifiable, and small changes in several areas often produce a noticeable shift.
Check Your Hormones
Testosterone is the primary driver of sexual desire in both men and women. In men, it acts at multiple levels to coordinate desire, arousal, and erectile function. Women produce far less testosterone, but even small dips can dampen interest in sex. If your libido has dropped significantly without an obvious lifestyle explanation, a simple blood test can reveal whether your testosterone is below the normal range. Testosterone treatment has been shown to improve sexual desire specifically, even in people dealing with other health conditions.
Prolactin is another hormone worth knowing about. Elevated prolactin levels are associated with low desire, and this can be corrected with treatment. Certain medications, pituitary issues, and even chronic stress can push prolactin higher than it should be. If low libido comes with other symptoms like fatigue or, in women, irregular periods, prolactin is worth investigating.
Prioritize Sleep
Sleep is one of the fastest ways to tank your sex drive without realizing it. A study from the University of Chicago found that healthy young men who slept only five hours a night for one week saw their testosterone levels drop by 10 to 15 percent. That’s a significant hormonal shift from just a few nights of short sleep. For context, testosterone naturally declines about 1 to 2 percent per year after age 30, so a week of poor sleep can mimic years of aging in terms of hormonal impact.
If you’re consistently sleeping fewer than seven hours, improving your sleep may do more for your libido than any supplement. Keep a consistent wake time, limit screens before bed, and keep your room cool and dark.
Exercise, but Time It Right
Regular physical activity increases blood flow, improves mood, and supports healthy hormone levels. But the type and timing of exercise matter more than you might expect.
Research on women found that 20 minutes of intense cycling significantly increased physiological arousal when participants were exposed to erotic content afterward. The effect was strongest 15 to 30 minutes after exercise, not immediately. Moderate activation of the body’s “fight or flight” system produced the biggest boost in arousal, while very low or very high intensity exercise was less effective.
A separate study tested a three-week program of 30 minutes of combined strength training and cardio, done three times a week at 70 to 85 percent of maximum heart rate. Participants reported improvements in both sexual desire and overall sexual function. There was also evidence that exercising shortly before sexual activity was more beneficial than exercising at a different time of day. So if you’re looking for a practical takeaway: a moderate workout earlier in the evening may prime your body for greater desire later.
Manage Chronic Stress
When you’re under sustained stress, your body releases cortisol, which activates your sympathetic nervous system and prepares you for threat. That’s useful in an emergency, but when cortisol stays elevated day after day, it disrupts the brain’s ability to process sexual cues normally. The parts of the brain responsible for emotional arousal and motivation are dense with cortisol receptors, meaning chronic stress directly alters how your brain responds to sexual stimuli.
Cortisol doesn’t just reduce desire. It shifts your brain toward avoidance. Research has shown that higher cortisol levels are associated with reduced brain activity in regions that govern approach behavior during sexual situations. In other words, stress doesn’t just make you tired. It actively pushes your brain away from wanting sex. Addressing the root cause of your stress, whether through workload changes, therapy, mindfulness, or simply building in recovery time, can help restore that balance.
Look at Your Diet
There’s no single “libido food,” but your overall dietary pattern matters. A clinical trial comparing a Mediterranean diet to a standard low-fat diet in people with type 2 diabetes found that the Mediterranean diet significantly slowed the deterioration of sexual function in both men and women. Participants following the Mediterranean pattern maintained better erectile function and female sexual function scores over the study period.
The Mediterranean diet emphasizes vegetables, fruits, whole grains, olive oil, nuts, and fish while limiting processed foods and red meat. Its benefits for sexual health likely come from improved blood vessel function, reduced inflammation, and better metabolic health overall. You don’t need to overhaul your kitchen overnight, but shifting toward more whole foods and healthy fats is a reliable foundation.
Review Your Medications
Several common prescription drug classes are known to suppress libido or interfere with sexual function. The most frequently implicated include:
- Antidepressants: SSRIs and other psychiatric medications are among the most common culprits. Sexual side effects can include reduced desire, difficulty with arousal, and delayed or absent orgasm.
- Blood pressure medications: Thiazide diuretics are the most common cause of sexual side effects in this category, followed by beta-blockers. Alpha blockers tend to cause fewer problems.
- Opioid painkillers: Chronic use of opioids suppresses testosterone production and frequently reduces libido.
- Antihistamines: Both allergy medications and certain heartburn drugs can dampen arousal.
- Hormonal treatments: Anti-androgen therapies and certain chemotherapy drugs directly suppress the hormones that drive sexual desire.
If your libido dropped around the time you started a new medication, that connection is worth raising with your prescriber. Often there are alternative drugs in the same class with fewer sexual side effects.
Consider Supplements Carefully
Two herbal supplements have the most clinical research behind them for libido specifically. Maca root has been studied at doses of 3 grams per day for 12 weeks, particularly in people experiencing sexual side effects from psychiatric medications. Results have been mixed but generally positive for desire. Ashwagandha root extract has shown more impressive numbers: one double-blind, placebo-controlled study in healthy men found that sexual desire scores increased by about 62 percent over the study period compared to placebo.
Neither supplement is a guaranteed fix, and quality varies widely between brands. But if you’ve addressed the basics (sleep, exercise, stress, diet) and want to try something additional, these two have the strongest evidence base.
Talk to Your Partner
Libido doesn’t exist in a vacuum. If you’re in a relationship, how you communicate about sex has a direct effect on how much you want it. Research from Baylor College of Medicine emphasizes that effective sexual communication goes far beyond consent. It involves helping your partner understand your specific desires, needs, and preferences in detail, including things like whether foreplay matters to you, what kinds of touch you enjoy, and what fantasies you might want to explore together.
These conversations don’t always need to be verbal. Body language, guiding a partner’s hand, or responding enthusiastically to something you enjoy all count. But having at least some explicit conversations, ideally outside the bedroom when there’s no pressure, creates a feedback loop where both partners feel more understood and more interested. Many people experience low desire not because something is wrong with their body, but because the sexual dynamic in their relationship has gone stale or misaligned. Addressing that directly is often the most powerful intervention available.