Love isn’t just about romance — it can also have real, measurable effects on your health. Whether you enjoy celebrating Valentine’s Day or prefer to skip the pink hearts and love poems, research shows that loving relationships can enhance both mental and physical well-being.

“These relationships can have a profound impact on your mental, emotional, and physical health,” explains Mikaela Frissell, LCSW, a licensed clinical social worker in UT Medicine’s Musculoskeletal Institute and member of UT Medicine’s Health Social Work care team. “And you don’t have to be in a romantic relationship to experience a healthy, loving relationship built on care, trust and support.”

1. Increases life expectancy

Research suggests that married people, as well as those with strong social relationships, tend to live longer. These relationships can also lower the risk of heart attacks, certain types of cancer and infections like pneumonia.

“Strong social connections play a crucial role in longevity,” said Frissell. “Having people you can rely on —whether a spouse, family, or close friends — encourages healthy habits, reduces stress and provides emotional support, all of which contribute to a longer, healthier life.”

2. Maintains a healthy heart

Emotional well-being plays a significant role in heart health, as supportive relationships help regulate stress hormones and reduce inflammation — two key factors in lowering the risk of cardiovascular disease.

“Studies indicate that people in healthy, happy marriages have a lower risk of developing cardiovascular disease compared to those in stressful relationships or those who experience loneliness,” said Frissell.

3. Lowers blood pressure

Happily married couples tend to have better blood pressure levels than those who are unhappily married or single. So, when you’re with the one you love, that light, fluttering feeling in your heart may actually be your blood pressure dropping.

“Knowing you have someone to lean on during difficult times can significantly reduce stress levels,” said Frissell. “When stress is managed effectively, we see positive effects on both mental and physical health, including lower blood pressure and improved heart health.”

4. Decreases anxiety

MRI scans show that people in stable, long-term relationships exhibit greater activity in the brain’s reward and pleasure centers, while showing less activation in areas linked to anxiety.

“This heightened brain activity fosters a sense of calm and security, contributing to a more balanced emotional state,” said Frissell.

5. Eases stress

Supportive relationships provide a sense of security and stability, making it easier to manage stress. Whether it’s a partner, close friend or family member, having someone to share your worries with can significantly lessen the emotional and physical toll of stress.

“Having someone to confide in can make all the difference,” said Frissell. “It helps lower stress hormones, improves resilience and enhances overall well-being.”

6. Combats depression

Love and strong social connections have been shown to reduce feelings of loneliness and depression while increasing happiness and a sense of belonging.

“Healthy relationships create a sense of purpose and fulfillment,” said Frissell. “When we feel emotionally connected to others, our brain releases feel-good hormones like oxytocin and serotonin, which help counteract feelings of anxiety and depression.”

7. Boosts the immune system

Feeling loved and supported can strengthen the immune system, making you less likely to catch colds and other viral infections.

“Those with a strong support system also tend to recover more quickly from illness,” said Frissell.

8. Helps manage pain

Similar to its effect on anxiety, love can also activate brain regions associated with pain control. Studies show that happily married couples report fewer complaints of back pain and headaches.

“Feeling secure and supported in your relationships can even improve sleep quality,” said Frissell. “When stress and anxiety are reduced, the body can better regulate pain responses, making it easier to rest and recover.”

9. Supports gut health

Eighty percent of your immune system — and most of your body’s microbes — reside in your gut.

“The feeling of love can help nurture and support your gut microbiome, which plays a crucial role in digestion, immune function and overall well-being,” said Frissell.

10. Improves sleep

Since loving relationships help reduce stress, they also contribute to better sleep quality. Studies suggest that happily married couples are 10% more likely to experience restful sleep.

“Tensions ease when you feel loved and supported, allowing you to sleep more soundly,” said Frissell.

The bottom line

If you want to lead a healthier life and enjoy the mental, emotional, and physical benefits that healthy relationships provide, it’s important to nurture connections that make you feel secure and supported — whether they are romantic or not.

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