Wake up with signs of moisture on the underwear or the bed sheets is not a cause for shame or alarm simply because it is a natural response of the reproductive system called nocturnal emission or wet dreams.
The wet dream occurs during sleep, in the “REM”, one of the stages of sleep erotic fantasies are producing pleasure and occasionally men culminate in ejaculation and orgasm in women. Both genders are vulnerable to this kind of night but with higher percentage in the first event. In case the male erotic dreams are like a body mechanism to expel seminal fluid overload and thus keep the substance in good reproductive status.
Although the reasons for erotic dreams as such is not known, it might have biological implications such as:
- Detecting the brain does about tensions in the genitals caused by long periods of abstinence.
- Frustrated or unsatisfied sex.
- Moments later fantasy without sexual activity.
- Period of ovulation in women.