What is NPT ?
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Nocturnal Penile Tumescence
this process for the first time in 1940, and in infants was explained, and in later years, details of which were investigated.
eighty percent cases of erectile nocturnal penis in the stage of REM sleep occurs. The maximum time erections during sleep around the age of puberty is of the penis in about 20% of sleep time in a state of erection. In the second decade of Life, average this amounts to about 38 hours looks and in adulthood this number to 27 minutes reduced.
number of times the stiffness of the penis, usually 3 to 6 times 8 hours and the average time it's about 10 to 15 minutes and is at any time also the intensity of stiffness of the penis should be more than 70%.
a full erection a sign of being healthy, centered, nervous, vascular, and is thus the cause of impotence can of the nervous or mental and psychological.