Evalyn Twillie
Evalyn Twillie voted up Neil Walker's answer
Blood pressure is the force on the walls of the arteries as the blood circulates. Blood pressure allows blood to flow and deliver nutrients to the body. We measure blood pressure with two numbers. The top number is the blood pressure when your heart beats. The bottom number is your blood pressure when your heart … Read more
Evalyn Twillie
Evalyn Twillie voted up Anonymous' answer

Viagra is a medication for erectile dysfunction. It works by relaxing your blood vessels and increasing the blood flow to your penis.
According to a recent study, two out of three men who experienced erectile problems reported that taking a PDE-5 inhibitor such as Viagra improved their erection.
In most cases, Viagra takes effect within … Read more