Quick Flow Male Enhancement The remedies persist for men who cannot get their arms on prescription drugs like Viagra or preferring "natural" cures. Atherosclerosis, a condition by which fatty deposits construct up inside arteries, may restrict blood circulate to the penis and cause erection difficulties. "The small blood vessels that go to the penis can turn out to be diseased a lot sooner than the vessels that go to the heart," Karen Boyle, MD, a urologist at Johns Hopkins School of Medicine, tells WebMD. "In youthful or youthful center-aged men, ED is commonly the first signal of atherosclerosis." Sexual performance declines naturally as men age, docs say. But a fast or severe lower in performance or libido is usually a purple flag. Most importantly, erectile dysfunction may be an early predictor of heart disease.