Erectile dysfunction can be an early warning of a heart attack, stroke, diabetes and dementia. It's time that patients and doctors alike started taking notice, according to researchers. You could describe erectile dysfunction as a silent epidemic. According to multiple surveys , it afflicts more than half of adult men over 40. Few, however, are willing to discuss the issue with the people they love. If the topic does come up in conversation, it's often seen as the subject of banter – rather