 To determine if 6 weeks of daily treatment with Atorvastatin 40 mg alters the immediate effect of Sildenafil Citrate Viagra, Pfizer Inc, New York, NY on endothelial function activity of the artery as measured by noninvasive peripheral arterial tonography in men and women. Also, to determine if 6 weeks of daily treatment with Atorvastatin 40 mg affects erectile function in men 