During sexual stimulation, sexual thoughts, or nocturnal erections, the neurotransmitter nitric oxide (NO) is released from the endothelial cells and the parasympathetic nerve terminal causing relaxation of two cylinder-like muscles called the corpora carvenosum. Nitric oxide influences an increase in concentrations of cyclic guanosine monophosphate (cGMP), which after numerous pathways triggers smooth muscle relaxation, and simultaneous closing of small veins traps blood in the cavernosal muscles, keeping blood in the cavernosal tissues that cause and maintain an erection.
10 ways of knowing that you are properly squeezing your pelvic floor muscles (PFM): 1) The base of your penis retracts inwards towards the pubic bone as you contract your PFM. 2) The testes rise towards the groin as you contract your PFM. 3) When you place your index and middle fingers in the midline between the scrotum and anus you feel these muscles tighten as you contract your PFM. 4) You can pucker your anus (not the gluteal muscles) as you contract your PFM. You feel the anus tighten and pull up and in, known as “anal wink.” 5) You get the same feeling as you do when you are ejaculating when you contract your PFM. 6) When you touch your erect penis, you feel the erectile cylinders surge with blood as you contract your PFM. 7) You can make your erect penis elevate (lift and point) as you contract your PFM. 8) You can stop your urinary stream completely when you contract your PFM. 9) You can push out the last few drops of urine that remain after completing urination when you contract your PFM. 10) After pursuing PFM training, you notice improvements in erectile rigidity and durability as well as better quality ejaculations, ejaculatory control and improvement in urinary control.
Penile vibratory stimulator is a battery operated device with oscillating discs that can provide excitation of afferent penile nerves at various regulated frequency and amplitudes. PVS has been utilised to activate the ejaculatory reflex for patients with spinal cord injury above T10 seeking to collect retrogradely ejaculated semen in fertility treatment (10). The Viberect is a vibratory stimulation handheld device approved by FDA for treatment of ED. It is clamp-shaped with two oscillating discs facing each other near the tips, and the glans penis is placed between the two oscillating discs to receive concurrent dorsal and ventral stimulation at adjustable frequencies and amplitudes.
Impotence, or erectile dysfunction (ED), is the inability for a man to sustain an erection long enough for normal, satisfying sexual intercourse. To understand the underlying causes of impotence, it helps to know the basics about how an erection develops, along with potential problems that get in the way. Erections begin in the brain with a thought related to sexual desire. Then a chemical message travels from the brain to the penis. Blood flow to the penis increases as blood vessels leading to the reproductive system relax and allow for increased circulation.
Cherries are rich in anthocyanins, plant chemicals which clean your arteries of plaque, keeping them open for business. That has a direct effect on blood flow below the belt. So make them a regular snack: One cup clocks in at fewer than 100 calories and boasts B vitamins, cancer-fighting flavonoids and three grams of fiber. For more essential fat-blasters for your kitchen, stock up on these 9 Best Flat-Belly Superfoods!
When considering vitamin supplementation for erectile dysfunction, one of the first vitamins that you may come across in literature would be Vitamin D. This is a vitamin that can be easily obtained through many types of dairy products like milk, cheese, and yogurt and is also in abundance if you live in a tropical climate. Sunlight is able to give us a natural dose of vitamin D daily.  Although vitamin D is usually associated with improving bone strength and prevention osteoporosis, another valuable feat of vitamin D is the fact that it helps reduce atherosclerosis. Studies confirm that there is a similar underlying mechanism that occurs between conditions like cardiovascular disease and erectile dysfunction. As blood vessels are damaged and filled with plaques, the diameter for blood to flow through is gradually reduced. After a few years, the amount of blood may be reduced substantially. Vitamin D is able to help activate cells that remove some of these dangerous plaques and delay the onset of ED. 
The search for a cure for erectile dysfunction (ED) dates back way before the introduction of Viagra in the 1990s. Natural aphrodisiacs, from ground rhinoceros horn topa chocolate, have long been used to increase libido, potency, or sexual pleasure. These natural remedies are also popular because they’re said to have fewer side effects than prescribed medications.
The diagnosis of erectile dysfunction requires a comprehensive sexual and medical history that include a validated questionnaire, the Sexual Health Inventory for Men (SHIM), and asking if they experience a rigid erection at night, in the morning, or during masturbatory approaches. The presence of rigid morning or night erections, or rigid erections at any sexual thought suggests a mainly psychogenic cause. Conversely, erectile dysfunction with a gradual onset, progressive course, or long duration suggests a predominantly organic cause.
Another potential cause of ED is prediabetes and diabetes—35-50 percent of men with diabetes also have ED. Chronically elevated blood sugar damages the arteries (there’s the vascular connection again) and nerves, including those that stimulate the penis. Prediabetes and diabetes are also generally accompanied by excess weight, especially around the mid-section. These excess fat cells convert testosterone into estrogen, negatively altering the testosterone to estrogen ratio. This excess estrogen, independent of prediabetes and diabetes, interferes with the hormonal cascade necessary to produce and maintain an erection. Although many men may reach for a testosterone booster, a more effective means is to improve the body’s metabolism and elimination of estrogen and to lose excess weight around the middle. To support healthy blood sugar balance and estrogen metabolism try:
Picture this: Draw one circle about the diameter of a Number 2 pencil and another circle that is smaller and about the diameter of a stirrer in a drink side by side. The larger circle is the approximate diameter of a good-sized coronary artery. The smaller circle is approximately the diameter of the pudendal artery, the major blood supply to the penis.
Yohimbe A number of clinical trials have shown that the primary component of this bark from an African tree can improve sexual dysfunction associated with selective-serotonin reuptake inhibitors (SSRIs) used to treat depression. This herb has been linked to a number of side effects, including increased blood pressure, fast or irregular heartbeat, and anxiety. Yohimbe shouldn't be used without a doctor's supervision.