Regular sexual intercourse provides significant mental and physical health benefits. It can improve mood, reduce stress, depression and anxiety while strengthening the immune system. Sexual activity also benefits cardiovascular health by lowering blood pressure and heart rate, and reduces the risk of prostate cancer. Engaging in sex two or more times per week can lower cardiovascular disease risk by 45%. While other forms of sex may provide some benefits, penile-vaginal intercourse resulting in orgasm has been shown to have the most impact on overall physical and mental well-being.