Healthy, loving relationships have been linked to better cardiovascular function through several key mechanisms. Emotional support and affection help reduce stress and lower levels of cortisol, a hormone that can contribute to high blood pressure and inflammation. Positive relationships also promote the release of oxytocin, which has been shown to lower blood pressure and improve heart health. Additionally, people in loving relationships often engage in healthier behaviors, such as better diet, regular exercise, and health focused choices, all of which contribute to cardiovascular well-being. Ultimately, emotional connection and social support help regulate the autonomic nervous system, reducing strain on the heart and improving overall cardiovascular function.