Sexual desire in long-term relationships declines for nearly every couple, but it doesn’t have to stay that way. Find out how dormant libido can be reawakened.
The secret to better sex
President Calvin Coolidge and his wife were visiting a government farm and shown around separately. When Mrs. Coolidge passed the chicken yard, she noticed a rooster mating very frequently. She asked the attendant how often that happened.
“Dozens of times a day,” the attendant replied.
“Tell that to the President,” Mrs. Coolidge said.
When President Coolidge passed the same yard and was told about the rooster’s impressive performance, he asked, “Same hen every time?”
“Oh no, Mr. President. A different hen each time.”
Coolidge nodded and replied, “Tell that to Mrs. Coolidge.”
This joke is so famous among researchers that the actual scientific phenomenon of renewed sexual interest with novel partners is literally called The Coolidge Effect. At some point in nearly every long-term relationship, the bedroom goes quiet. The passion that once felt effortless now requires effort. And one or both partners starts wondering:
“What happened?”
The numbers tell a clear story. In the first six months after a wedding, 83% of couples report being satisfied with their sex life. Give it a few years, and that number drops to 55% for women and 43% for men. By year five, research shows, the average wife’s sexual desire has declined steadily while her husband’s remains unchanged. The biggest drop in a couple’s sex life typically happens between the wedding day and the first anniversary. After that, frequency declines more slowly, but it keeps declining.
“No food kills a woman’s libido more than wedding cake.”
But the joke and those numbers miss the point:
“The libido haven’t died. It’s just dormant. And anything dormant can be awaken.”
The problem is that most advice for reigniting desire focuses on the wrong things. New lingerie. Exotic positions. Weekend getaways. These might work for couples whose sex life is already humming but has gotten a bit routine. For couples where desire has genuinely gone dark, adding candles to the bedroom is like putting a fresh coat of paint on a car that won’t start.
“Don’t think of libido as something to boost or fix. Think of it as something to create the conditions for.”
Instead of treating low desire as a broken part to repair, you start treating it as a flame that needs the right conditions to catch. And those conditions have less to do with technique and more to do with psychology, physiology, and the small choices you make every day.
Desire discrepancies rank among the top reasons couples seek therapy. The gap between what we want to feel and what we actually feel causes real distress. But the solution isn’t forcing yourself to feel aroused on command. The solution is understanding what blocks arousal and what invites it back in.
Proven methods for reigniting a dormant sex life
When sexual desire fades in a long-term relationship, couples often wonder if they can bring it back. The answer is yes. Multiple evidence-based interventions are effective in restoring sexual interest and function, ranging from structured therapeutic techniques to lifestyle modifications.
1. Sexual communication
Researchers in Vienna tested oxytocin (the “bonding hormone”) as a treatment for low desire in women. What they found surprised them: the placebo group showed the same improvements as the treatment group. Both groups improved because the study required couples to discuss their sex life more openly and keep a joint diary.
“The mere fact that the couple discussed sexuality more in their relationship helped to enhance their sexual activity.”
The communication itself created the change, not the medication.
Research consistently shows that couples who discuss their sexual relationship experience greater satisfaction. Yet studies reveal that partners typically know only about 62% of what pleases their partner sexually and just 26% of what their partner finds displeasing.
Sexual communication correlated with greater desire, arousal, lubrication, orgasm and erectile function. The effect sizes for desire and orgasm were notably higher for women than for men.
Two pathways explain why communication matters:
Effective sexual communication includes both verbal and non-verbal elements. Couples who maintain satisfying sex lives over time report regularly discussing:
They also communicate during sexual activity through words, sounds, and physical guidance.
2. Novelty
Named after a possibly apocryphal joke about President Calvin Coolidge visiting a chicken farm, the Coolidge Effect mentioned above, describes the phenomenon where sexual interest renews with a new partner even after exhaustion with a familiar one. It’s been documented across many species, including humans, and applies to both sexes.
Brain imaging shows that the brain’s reward system responds more strongly to novel stimuli than familiar ones. Your brain literally codes your long-term partner as “known quantity,” which reduces the dopamine hit you get from them.
But the hopeful part is that couples who deliberately introduce novelty through shared experiences, playful exploration, and new activities report similar neurochemical rewards to those in new relationships.
You don’t need a new partner. You need new experiences with your current one.
One study found that couples who tried new activities were 36 times more likely to have sex, reported greater sexual satisfaction, and felt happier in their relationships overall.
Couples who actively work against sexual boredom by experimenting with different approaches, contexts and techniques report sustained satisfaction. Adventure, travel, learning new skills together, role-play, and exploring shared fantasies all activate the same neural pathways that respond to partner novelty.
3. Sleep
Sleep plays a crucial role in regulating the hormones that control libido. Testosterone, vital for sexual desire in both men and women, is produced primarily during deep sleep. Researchers found that men who were sleep-deprived for even one week had significantly lower testosterone levels, accompanied by decreased sexual desire and energy.
A study following 171 women over 14 days found that longer sleep duration was related to greater next-day sexual desire. Each additional hour of sleep corresponded to a 14% increase in the likelihood of engaging in partnered sexual activity the following day. These relationships held even after controlling for daytime mood and fatigue.
Synchronise your bedtimes
Going to bed at the same time as your partner appears to benefit both sleep quality and relationship functioning. Research found that couples who slept in the same bed were awake or asleep at the same time about 75% of the night. When the wife reported higher marital satisfaction, the percentage of time couples were awake or asleep together was even greater.
The benefits extend beyond relationship satisfaction. A study found that couples who share a bed show about 10% more REM sleep compared to sleeping alone, with less fragmented REM sleep and longer undisturbed REM periods. REM sleep is crucial for emotional processing, memory consolidation, and mental health.
Going to bed together creates opportunities for physical closeness that might otherwise be missed when partners keep different schedules.
While sharing a bed offers benefits, the Scandinavian sleep method offers a practical compromise for couples with different temperature preferences or sleep habits. Common throughout Norway, Sweden, Denmark, and Germany, this approach involves using two separate duvets on one bed rather than sharing a single blanket.
The method works because temperature regulation differs significantly between partners. Women’s hands and feet often have lower skin temperatures as their bodies prioritise keeping internal organs warm, leading them to want more coverage. Men tend to run hotter. With separate duvets, each person can choose the weight and warmth level that suits their body without negotiating or compromising.
Create opportunities for intimacy
Tactile intimacy before and following sexual activity has been improves relaxation as well as physiological outcomes such as blood pressure and heart rate. Cuddling, hugging and kissing trigger oxytocin production, which reduces stress, boosts trust and empathy, and strengthens the bond between partners.
Going to bed together creates natural opportunities for this physical connection. Couples who arrive at bed exhausted and out of sync miss these moments of daily intimacy. Don’t stop doing all the small things that kept your relationship alive, like touching, snuggling and kissing. The earlier you go to bed, the more energy you’ll have to connect physically.
Chronotype mismatches
Chronotype, whether someone is naturally a morning person or night owl, affects both sleep timing and sexual patterns. Research shows that couples with mismatched chronotypes have more marital conflicts and less sexual intercourse than matched couples.
For men, the greatest need for sex occurs either in the morning or evening hours according to their chronotype. Evening types peak at 9:00-12:00 and 18:00-3:00, while morning types peak at 6:00-12:00 and 18:00-24:00. Women show a general evening peak of sexual activity and desire regardless of chronotype.
When chronotypes differ significantly, couples may need to compromise on timing or find creative solutions. Some couples set aside weekend mornings for intimacy when the morning-type partner has more energy. Others prioritise early evening connection before the evening-type partner’s energy peaks while the morning person is still awake.
4. Exercise
Physical activity influences sexual desire through multiple mechanisms. Exercise triggers the release of endorphins, reduces stress and anxiety, improves body image, enhances cardiovascular health and affects hormone levels.
A systematic review found that regular aerobic exercise stands out as a promising and effective therapy for enhancing erectile function in men. For women, research shows that acute exercise increases physiological sexual arousal. Women who exercised immediately before sexual activity showed elevated levels of sexual desire.
The relationship between exercise and libido follows a U-shaped curve. Low exercise volume negatively impacts sex drive, erections and ejaculation in men. Moderate exercise appears optimal. However, extreme endurance training at high intensity over many years has been associated with decreased libido scores in men, likely due to hormonal effects.
Body image improvements from exercise may matter as much as physiological effects. Feeling good about one’s body predicts greater sexual desire and engagement with sexual stimuli, regardless of actual body size or weight.
5. Cognitive behavioural therapy
CBT addresses the dysfunctional thoughts and beliefs that often underlie low desire. Many people with diminished libido hold unhelpful assumptions about sex, such as believing they should feel spontaneous desire like they did early in the relationship, or that their partner’s advances represent demands rather than invitations.
CBT improves sexual desire in women by increasing sexual awareness and skills, helping couples understand the causes of decreased desire, and creating space for emotional expression
A person cannot will themselves to feel desire, but they can change how they think about sex, reduce avoidance behaviours, and address relationship patterns that suppress interest. The therapy typically includes psychoeducation about sexual response, identification of negative automatic thoughts, cognitive restructuring, and behavioural experiments designed to challenge unhelpful beliefs.
6. Sensate focus exercises
Developed by William Masters and Virginia Johnson in the 1960s, sensate focus remains one of the most widely used and effective interventions in sex therapy. The technique involves a structured series of touching exercises that help couples rebuild physical intimacy without performance pressure.
Sensate focus works by removing the goal of orgasm or intercourse entirely. Partners take turns touching each other while focusing on sensations such as temperature, texture and pressure. Over several stages, touching gradually progresses from non-genital areas to include breasts and genitals, eventually reintroducing intercourse.
Research supports its effectiveness and found that sensate focus effectively treats decreased sexual desire. Sexual therapists report an 83% effectiveness rate for relieving various sexual dysfunctions when couples complete the full protocol.
The technique appears to work through several mechanisms. It reduces anxiety by eliminating performance expectations. It rebuilds physical awareness and body trust. And it re-establishes communication about touch preferences between partners who may have stopped discussing their physical needs years ago.
The bottom line
There’s a joke that goes:
“Once you’re married, people stop asking about your sex life. They know you don’t have one.”
It’s funny because it’s relatable. But the research shows it doesn’t have to be true. The couples who maintain satisfying sex lives aren’t lucky or genetically gifted. They’re intentional. They talk about it. They prioritize it. They treat it as something worth investing in, not something that should just happen on its own.
That’s really the takeaway from all this research: Desire isn’t something you either have or don’t have. It’s something you create the conditions for. And once you understand what those conditions actually are, you can start building them.
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