Libido is shaped by a mix of hormones, stress levels, sleep, diet, exercise, relationship dynamics, and medications. That means there’s rarely a single fix, but it also means you have multiple levers to pull. Most people who feel their sex drive has dropped can trace it to one or two of these factors, and addressing them directly tends to bring noticeable improvement.
Check Your Hormones First
Testosterone drives sexual desire in both men and women. In women, normal testosterone falls between 15 and 70 nanograms per deciliter. When levels dip below that range, the result is often fatigue, low mood, and reduced interest in sex. Estrogen matters too, but the relationship isn’t straightforward: levels that are too high can actually suppress your sex drive and promote weight gain around the waist and hips.
If your libido has dropped noticeably and you can’t point to an obvious lifestyle cause, a simple blood test can check your hormone levels. For men, total and free testosterone are the key numbers. For women, both testosterone and estrogen levels are worth measuring. Hormonal shifts during perimenopause, menopause, postpartum recovery, or while using hormonal birth control are among the most common triggers for low desire.
How Stress Shuts Down Sex Drive
Chronic stress doesn’t just make you tired. It actively suppresses the hormonal system responsible for sexual desire. When your body produces high levels of the stress hormone cortisol, that cortisol acts on multiple points in the brain and reproductive system to dial down the signals that trigger arousal. Specifically, cortisol inhibits the release of the hormones that tell your ovaries or testes to produce testosterone and estrogen. It also suppresses kisspeptin, a brain chemical that acts as a gatekeeper for the entire reproductive hormone chain.
This isn’t a subtle effect. Your brain essentially treats chronic stress as a signal that conditions aren’t safe for reproduction, and it redirects resources accordingly. The practical takeaway: stress management isn’t a soft suggestion. It’s one of the most direct ways to restore hormonal signaling for desire. Whatever genuinely lowers your stress, whether that’s cutting commitments, therapy, meditation, or regular time outdoors, has a downstream effect on your sex drive.
Sleep Matters More Than You Think
Sleep deprivation tanks testosterone. A meta-analysis of studies on healthy men found that going without sleep entirely for 24 hours or more significantly reduces testosterone levels. The effect gets worse with longer deprivation: men who stayed awake for 40 to 48 hours showed even steeper drops.
Interestingly, short-term partial sleep restriction (sleeping five or six hours instead of eight for a few nights) didn’t produce a statistically significant testosterone decrease in the same analysis. That doesn’t mean poor sleep is fine for your libido. Chronic partial sleep loss still raises cortisol, disrupts mood, and reduces energy, all of which erode desire through other pathways. The clearest signal from the research is that consistently getting adequate sleep protects the hormonal foundation of your sex drive, and severe sleep loss can undermine it quickly.
What to Eat for Better Sexual Function
The best-studied dietary pattern for sexual health is the Mediterranean diet: heavy on vegetables, fruits, whole grains, olive oil, fish, and nuts, with limited red meat and processed food. In a randomized trial lasting over eight years, people with type 2 diabetes who followed a Mediterranean diet experienced significantly less decline in sexual function compared to those on a standard low-fat diet. That held true for both men and women, and the participants started the study without any existing sexual dysfunction.
The likely mechanisms are improved blood flow, reduced inflammation, and better insulin sensitivity. All three affect genital arousal directly. You don’t need to follow a rigid meal plan. The core principle is straightforward: eat more whole foods, especially those rich in healthy fats and antioxidants, and cut back on processed foods, sugar, and excess alcohol. Heavy drinking is one of the most reliable libido killers, both acutely and over time.
The Right Kind of Exercise
Regular physical activity improves desire through several channels: it boosts mood, improves body image, enhances cardiovascular health (which supports arousal), and influences hormones. But the type of exercise matters, and the answer may not be what you’d expect.
In women, aerobic exercise tends to elevate testosterone afterward, while resistance training does not produce the same hormonal bump. For men, both resistance and aerobic training are associated with better sexual function, though extremely high-volume endurance training (think ultramarathon-level mileage) can suppress testosterone. The sweet spot for most people is moderate, consistent exercise: 150 or more minutes of activity per week, mixing cardio and strength training. Beyond hormones, exercise reduces cortisol over time, improves sleep quality, and increases blood flow to the genitals, all of which support desire.
Relationship Patterns and Desire
Your emotional connection to a partner shapes your baseline level of desire more than most people realize. Research on attachment styles and sexual desire found that women with secure attachment (feeling safe, trusting, and comfortable with closeness) reported significantly higher sexual desire. Women with avoidant attachment styles, characterized by emotional distance and discomfort with intimacy, reported lower desire. Together, attachment style and age predicted over a third of the variation in sexual desire among the women studied.
This has a practical implication. If your libido dropped after a relationship became strained, or if you notice you pull away emotionally when things get tense, the path back to desire may run through the relationship itself. Couples therapy, honest conversations about needs, and rebuilding emotional safety can have a more lasting impact on sex drive than any supplement. Desire, particularly for women, often follows emotional connection rather than preceding it.
Supplements With Actual Evidence
Most “libido boosting” supplements are marketing with minimal science behind them. Two exceptions have reasonable clinical support.
Ashwagandha (KSM-66): In a double-blind, placebo-controlled trial, healthy men who took 300 mg of ashwagandha root extract twice daily for eight weeks reported a 61.9% increase in sexual desire scores. They also experienced a 42.9% increase in successful duration of intercourse and a 55.4% increase in non-intercourse intimate interactions. These are self-reported measures, but the study design was rigorous, and the improvements were significantly greater than placebo.
Maca root: Studied at doses of 3 grams per day over 12 weeks, maca has shown modest improvements in sexual desire in multiple trials, including among people taking psychiatric medications known to suppress libido. The effect tends to take several weeks to become noticeable, so it’s not an on-demand solution.
Neither supplement is a magic fix, and quality varies widely between brands. Look for standardized extracts from reputable manufacturers, and give either one at least six to eight weeks before judging whether it’s working.
Medications That Lower Libido
If your sex drive dropped after starting a new medication, that’s not a coincidence. SSRI antidepressants are the most common culprits. A realistic estimate is that 30% to 50% of people taking SSRIs experience some form of sexual dysfunction, including reduced desire. Specific rates vary by drug: paroxetine and citalopram tend to cause the most sexual side effects, while sertraline and fluoxetine are somewhat lower but still significant.
Other medications that frequently suppress libido include hormonal birth control, blood pressure medications (especially beta-blockers), anti-anxiety drugs, and opioid painkillers. If you suspect a medication is the cause, talk to your prescriber about alternatives. In many cases, switching to a different drug in the same class, adjusting the dose, or adding a counteracting medication can restore desire without sacrificing the treatment you need.
Prescription Options for Low Desire
For women diagnosed with hypoactive sexual desire disorder, two FDA-approved medications exist. One is a daily pill (flibanserin) that acts on brain chemistry related to desire. The other (bremelanotide) works on demand: injected under the skin at least 45 minutes before sexual activity, it activates receptors in the brain involved in arousal. In clinical trials, women using bremelanotide reported a 25% improvement in sexual desire scores compared to 17% with placebo. That’s a real but modest benefit, and both medications come with side effects that make them worth discussing carefully with a provider.
For men, the situation is different. Erectile dysfunction medications improve blood flow but don’t directly increase desire. When low libido in men is traced to low testosterone, testosterone replacement therapy is the most direct medical intervention, delivered through gels, patches, or injections. The decision to start testosterone therapy involves trade-offs around fertility and cardiovascular risk that vary by age and health status.