The politically correct term for impotence these days is “erectile dysfunction,” or ED. Whatever you call it, the lesson we doctors were taught in medical school–that most cases of failure to get or maintain an erection are emotional–turned out to be dead wrong. We now know that ED has a physical cause about 85% of the time. Usually the problem is poor circulation and reduced blood flow to the penis, so that an erection cannot occur. Undeniably, the new prescription drug Viagra works well for many men. But it’s expensive, can have side effects, and may not be right for everyone. Over the years, several supplements and herbs have been used with good results. (In fact, one of these, yohimbine, can be so effective that it’s available only by prescription.) Let’s see how some of our WholeHealth Chicago recommendations can help.