Tag: erection


Nocturnal Penile Tumescence: What Your Sleep Reveals

Nocturnal Penile Tumescence: What Your Sleep Reveals

Nomenclature and Definition of Nocturnal Penile Tumescence The phenomenon commonly referred to as a morning erection is formally known within medical and sleep science literature as Nocturnal Penile Tumescence, or NPT. This physiological occurrence is characterized by the involuntary engorgement and subsequent complete erection of the penis, typically observed upon or shortly before waking. While […]

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