"Some physical problems that can lead to weak erections are the inability of your brain to send signals to your penis, which can be caused by neurological conditions like MS, Parkinson's disease and Alzheimer's," adds Axe. "Studies suggest that stress, anxiety and depression can produce major chemical changes in your brain, leading to the inability of smooth muscles to relax and allow for an erection. On top of this, researchers have also indicated that the failure to achieve an erection can aggravate a man's anxiety levels, leading to a vicious cycle."
The second tip is to breathe deeply, the whole time you’re having sex, but especially once you start to feel like you’re going to ejaculate or lose your erection for some reason. Deep breathing sends oxygen and energy to where it’s needed most, and it’s known for intensifying sex. What’s more important, though, is that it helps you get control over your body.
Stiffy Solution: The good news is, almost all of these conditions can be successfully treated if you catch them early on. And since erectile problems may be the first side effect your dude has experienced, seeking medical treatment for his erectile problems may be the thing to get him into a doctor's office. So if your dude is a well-rested, non-drinking, non-smoking, paragon of relaxation who suddenly can't get wood, urge him to talk to his doctor — his misbehaving penis may actually be communicating something way more important than "Not tonight, honey."
Ask about transurethral pharmacotherapy. Your doctor may suggest you try this treatment, which involves placing a suppository into the urethra. The suppository contains alprostadil, which is then absorbed into the blood stream, relaxing blood vessels and improving blood flow into the penis. This treatment is thought to be less effective than the vacuum devices, or injection therapy.
Additionally, extensive cigarette, alcohol and drug use can play a role, hence the terms "whiskey dick" and, most recently, "weed dick." According to a recent Playboy article by Dr. Justin Lehmiller, a social psychologist at Ball State University and author of the Sex and Psychology blog, recent studies show that erectile dysfunction's prevalence is "three times as high for daily marijuana smokers compared to those who don't use it at all."
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.