This hormone helps us sleep but also quiets our sexual urges. Less melatonin means the potential for more sexual desire. Replacing bad habits with healthy ones, such as exercise and eating well, can help boost sexual health. What you rely on to unwind, such as smoking and consuming alcohol, could also affect sexual performance.
There aren't enough studies of penis-enlargement surgery to give an accurate picture of risks and benefits. These usually contain vitamins, minerals, herbs or hormones that manufacturers claim enlarge the penis. None of these products has been proved to work, and some may be harmful. However, there's little scientific support for nonsurgical methods to enlarge the penis.