Viagra went on the market in 1998 and the world hasn't been the same

Viagra has been a blessing for men with some degree of erectile dysfunction (ED), which is mostly related to middle aged men or older as well as younger men where illness or medications make it difficult to get and maintain an erection.

The Pfizer drug can be of great help in this regard.

But erectile dysfunction also can be a warning sign for risk of cardiovascular disease, in fact, researchers in the U.S. and Canada say it is the strongest predictor for that disease short of the treadmill stress test.

So don't start taking Viagra on your own until you've seen your doctor as Viagra is a prescription medication.

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