朝立ち (生理現象)
1. Nocturnal penile tumescenceNocturnal penile tumescence (NPT) is the spontaneous occurrence of an erection of the penis during sleep or when waking up. All men without physiological erectile dysfunction experience this phenomenon, usually three to five times during the night. It typically happens during REM sleep. The existence and predictability of nocturnal tumescence is used by sexual health practitioners to ascertain whether a given case of erectile dysfunction (E.D. ) is psychological or physiological in origin.
Read “Nocturnal penile tumescence” on English Wikipedia
Read “朝立ち (生理現象)” on Japanese Wikipedia
Read “Nocturnal penile tumescence” on DBpedia
Read “Nocturnal penile tumescence” on English Wikipedia
Read “朝立ち (生理現象)” on Japanese Wikipedia
Read “Nocturnal penile tumescence” on DBpedia
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