Some of the most reliable ED stats have emerged from a large data collection effort called the Massachusetts Male Aging Study. According to that data, rates of ED among men tend to correlate with their age bracket, says Tobias Köhler, M.D., chief of the Division of Male Infertility at Southern Illinois University. “Roughly 40 percent of men in their 40s suffer from ED, 50 percent in their 50s, etc.,” he says.

How many times does a man get erect in a day?


Francis,*, 42, had ED for 11 years before he decided to seek treatment a few years ago. At first, he didn't even realize that he might have ED. "I thought I was either depressed or that I had lost interest in my girlfriend at the time," he said. But when the problem persisted, he realized it was preventing him from having sex with his partner, who often taunted him for struggling to maintain an erection.
The blood vessels in your penis are smaller than the larger veins and arteries in other parts of your body. What that means is the first sign of hypertension, heart disease, high cholesterol, and clogged arteries may not be a stroke or a heart attack. It will often be erectile dysfunction. Regular physical activity reduces your risks for cardiovascular disease (which is awesome), but it also lowers your risk for ED. If there’s a better reason to sweat through a spin class, I can’t think of one. 

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