In an uncircumcised man, there may be a problem with his foreskin such that it is tightly attached to the under the surface of the glands of the penis causing difficulty in movement of the skin and pain during erections. A foreskin which restricts movement is called frenulum breve. This can be treat....

I guess you are referring to the brain stimulation rather than activity. If you actually think that it decreases the brain activity than you are unaware of the fact that watching porn helps many in increasing the brain activity and repairing sex life in many cases as well. When you do an actual p....

Penis size not fat