Valentine's Day: how much blood does it take to "date"? Understand

Science can explain what resources are needed to be "ready" to celebrate Valentine's Day, celebrated this Friday (12). The resolution, however, depends on a number of factors.

Although erection depends on some variables, the average volume of blood needed for the penis to become erect is approximately 130 milliliters (mL).

Compared to what we carry as human beings, the amount is tiny. The human body holds 4.5 to 5.6 liters.

The mechanism of rigidity
The penis has two columns of tissue, called corpora cavernosa. Nourished by the blood vessels, the influx of blood brings "firmness" when the arteries relax after the brain receives erotic stimuli.

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The flow to maintain an intracavernous pressure of 150 mmHg and the mean pressure decay values varied between 0.5-13 ml/min and 5-85 mmHg, respectively.

Factors that influence
The body releases nitric oxide (NO) during stimulation, which helps to dilate the vessels. Hormones such as testosterone also play a role in releasing the penile arteries to fill with blood.

Other things influence whether this volume of blood reaches its destination. Cardiovascular disease, high blood pressure and diabetes can reduce flow to the penis.

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Occasional episodes of erectile dissatisfaction may occur due to stress, tiredness or alcohol use. However, persistent changes in desire or pain should be evaluated by a urologist.

Regular aerobic exercise and a balanced diet are associated with reduced symptoms of erectile dysfunction.

Source: CNN