When a man undergoes sexual arousal, chemicals in his body known as oxytocin and dopamine get released into the bloodstream. Health benefits are received from these chemicals. In men, oxytocin helps to reduce stress levels in the body and helps to maintain positive emotions. Dopamine helps the body to feel positive emotions at a more temporary time frame.
Some more health benefits reported when a man masturbates and ejaculates also include an increased function of the immune system, a more relaxed sleep state, less stress and improved feelings of pleasure, lower blood pressure and even an improvement in partnered sex.
Another key benefit associated with masturbation is improved sexual health through the promotion of intimacy with one’s self. Masturbation also helps with the prevention of highly transmissible disease such as sexually transmitted infections and HIV.