Smoking could reduce the size of a man's erect penis, researchers said Sunday. The shrinking manhood warning came from the Boston University School of Medicine when they revealed preliminary findings from a study of 200 men in the London Observer newspaper Sunday.
Smoking affects the penis in the same way that it does the heart, the researchers said.
It damages the blood vessels and inhibits blood flow. This in turn affects elastin, the substance believed to govern a man's ability to have an erection.