The existence and predicting

The existence and predicting nocturnal tumescence are used by urologists to determine whether it is a case of physical or psychological erectile dysfunction. A patient with erectile dysfunction is an elastic device placed around the penis while sleeping; the device detects changes in the state of the penis and collects data on a computer for further analysis. If nocturnal erections are detected, then ED is allegedly due to psychosomatic VigRX Plus  problems like sexual anxiety, and thus to psychological causes.

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