Life has its ups and downs, and so does your sex life. Sometimes weeks — or even months — can pass without intimacy. But what many don’t realize is that going too long without sex isn’t just frustrating — it could actually be harmful to your health.

According to experts, “regular sexual activity can boost your immune system, lower stress, and improve heart health.” Without it, you may experience more anxiety and sleep problems. “Lack of intimacy can lead to feelings of loneliness and lower self-esteem,” says Dr. Pepper Schwartz.

Physical effects are real, too. “Sex increases blood flow and releases feel-good hormones,” explains Schwartz. Without it, some people notice lower energy levels and mood swings. Additionally, “couples who stop having sex often report feeling less connected emotionally,” which can impact relationships.

Finally, long periods without intimacy may lower libido. As Schwartz notes, “The less you have sex, the less you may want it.” Staying sexually active keeps both your body and mind in sync, contributing to overall well-being.

In short, a dry spell isn’t just about missing out on pleasure — it can affect your physical, mental, and emotional health.