What lifestyle change makes a fivefold difference in your odds of having erectile dysfunction? Eating brocolli? Jogging? The answer is probably not the first thing that comes to your mind: it's having regular sexual intercourse.
I hate to keep repeating myself, but males need to have sex! A life of asceticism and denial is hard on the male body. Once again, a major study showed that for guys to be healthy, they need to have sex. Finnish researchers found that the risk of erectile dysfunction was inversely related to the number of times of intercourse per week.  In other words, the more sex you have, the less likely you are to have erectile dysfunction. Or as they say on the streets - use it or lose it!
In fact, these same researchers found the following rates of erectile dysfunction:
Notice the drastic reduction in erectile dysfunction between men who had sex and men who did not: the rate is almost five times different! The lead researcher wrote "Regular intercourse has an important role in preserving erectile function among elderly men, whereas morning erection does not exert a similar effect. Continued sexual activity decreases the incidence of erectile dysfunction in direct proportion to coital frequency."
There are probably a great meany reason that sex actually improves erectile dysfunction. One of the minor reasons is that sex exercises, perhaps as nothing else can, those penile muscles. Another minor reason is that the penis needs "oxygenation". One study states that "oxygenation of the cavernous tissue is important in regulation of local mechanisms of erection. Blood flow aterialization during erections is felt to be crucial in providing the free oxygen necessary for formations of NO by neuronal and endothelial nitric oxide synthase."  These same researchers documented that males with erectile dysfunction demonstated "severe hypoxia" in the arterial penile chambers, where hypoxia simply means "lack of oxygen". They then point out that "chronic hypoxia leads to less NPT [nocturnal erections] with eventual corporal fibrosis and progressive and irreversible ED [erectile dysfunction]". In other words, the penile tissues can actually deteriorate without this oxygenation to where the erectile dysfunction can be irreversible.
Again, you must be serious about your sex life: sex makes it possible in most cases for you to have more sex and to be healthy as guy. In other words, many middle aged and beyond guys are not getting morning erections and this will very likely have a very negative effect, i.e. help take them to the land of erectile dysfunction. For males in this situation, sex can literally be a lifeline for their erections.
The researchers in the first study I cited alluded to something much more mysterious and powerful than simple penile oxygenation. Yes, sex will help oxygenate the penis, but the it's erection-curing powers seem to go far beyond that. Again, this study highlighted the fact that sexual activity helped significantly with erectile dysfunction even though morning erections could not do the same thing.
The reason undoubtedly that sexual intercourse is very different from morning erections on many fronts. An orgasm leads to the release of a flood of hormones and neurotransmitters that simply do not occur from a simple morning erection. Somehow these differences make all the difference in the world and can actually heal and protect.
NOTE: A lot of middle aged guys will find that sexual intercourse will actually give them morning erections when they had none before. Sex can help with "maintenance" if you will.
So get out the To Do list and cross off everything except you know what tonight...
NOTE: I know that some of you need some practical ideas for how to get more sex from the woman in your life. Well, it's not as hard as you might think in most cases. Here are a few ideas that will definitely help: Oxytocin, Massage, Pelvic Angle, Tease Her and Increase Her Libido. Treating her right isn't a bad idea either!
1) The Amer J of Med, 2008, 121(7):592, "Regular Intercourse Protects Against Erectile Dysfunction: Tampere Aging Male Urologic Study"
2) J of Andrology, Mar/Apr 2007, 28(2):223-228 ,"Penile Oxygen Saturation in the Flaccid and Erect Penis in Men with and without Erectile Dysfunction"