Sexuality as a space of knowing, which I wrote about last time, shows us that intimate life is far more complex than a simple physical exchange. And one of the most fascinating and least understood complexities of it is precisely the variability of desire and attraction. Why on some days do you desire the other intensely, while on others, even though nothing obvious has changed, desire seems to have disappeared? The answer is less mysterious than it appears and more connected to emotions than we are willing to acknowledge.

Emotions influence desire and attraction through real neurobiological mechanisms, not through magic or coincidence. The limbic system, which processes emotions, is closely connected to the systems that regulate sexual desire. Emotions are not a separate layer of human experience. They colour everything, including the way you perceive the other's body, the way you respond to their closeness, and the quality of the intimate experience as a whole.

Research in sexual neurobiology has shown that sexual desire has two distinct components: spontaneous desire, which arises without a specific stimulus, and responsive desire, which arises in response to a context or stimulus. Emotional state massively influences the first component and considerably moderates the second.

What emotions inhibit desire and attraction? The list is longer than we imagine.

Chronic stress is perhaps the most frequent inhibitor. Cortisol released in stress directly suppresses the production of testosterone and oxytocin, the two main actors of desire and attachment. A person under prolonged stress does not have a desire problem in the traditional sense. They have a nervous system that prioritises survival over reproduction and connection. That is biology, not lack of love.

Unexpressed resentment is the second major inhibitor. You can love someone deeply and not desire them, if you carry unspoken anger or disappointment towards them. The body does not dissociate relational emotions from erotic availability. Resentment creates a physical and emotional distance that translates directly into the absence or reduction of desire.

Performance anxiety is a third factor, often overlooked. When intimacy is experienced as a test, when you are preoccupied with how you look or how well you perform, desire is replaced by monitoring. And monitoring is, neurologically, incompatible with desire. You cannot evaluate yourself and be present at the same time.

Sadness and depression produce a general flattening of the emotional response that includes sexual desire. It is not a choice. It is a direct consequence of the biochemistry of depression.

What emotions amplify desire and attraction? A few I observe as genuine.

Joy and playfulness are among the most powerful amplifiers. A brain in play mode is a brain that explores, that is open to the new, that produces dopamine. And this state transfers into intimacy.

Gratitude and appreciation towards the partner produce a different quality of desire, warmer, more grounded, less dependent on impulse and more on choice. Remembering why you fell in love, noticing what the other does well, looking at them with appreciative eyes, all of these shift the chemistry of the moment.

Shared vulnerability, a deep conversation, a moment of genuine opening, produces oxytocin and increases the desire for physical closeness. It is not a coincidence that emotional intimacy tends to precede physical intimacy in healthy relationships.

What do you do with this information in concrete life? A few practical things.

If you notice that desire has decreased, before concluding that the relationship is in trouble, ask yourself what dominant emotion you are carrying at this moment. The answer may be simpler and more resolvable than you expect.

If you want to increase desire, invest in your emotional state. Not as a seduction trick, but because you are an integrated organism in which emotions and sexuality are not separate.

And if your partner is going through a period of reduced desire, try to understand what they are carrying emotionally, rather than interpreting the absence of desire as a rejection of you.

I believe one of the most mature understandings you can develop about your sexual life is that desire is not a tap you open or close. It is an echo of your inner state and of the quality of the relationship you are in. And that the best way to nourish it is to care for the soil from which it grows.

What is the emotion you carry most frequently and which you believe most influences your desire and attraction towards your partner?