Tragic end of the boy who was brought up as a girl http://ind.pn/pO2bf9 (story of David Reimer)

Film on the medicalisation of female sexual dysfunction.

X-rated neuroanatomy http://bit.ly/kABVYG

قفز عارياً من الطابق السابع بعد العلاقة الآثمة التى جمعته بخطيبته - صورة ارشيفية

the semen displacement theory

The research shows that when the game plays out, a “good” male will participate longer than a “bad” male, allowing the female to weed out a suitable mate: the longer they hang around, the more likely it is that the male will be “good”. [...] What this research provides is a possible explanation for the evolution of lengthy courtships in many species, including humans.

So the author proposes a more...natural method of decongestion. "It is known that sexual arousal in men is followed by penile erection and subsequent ejaculation" (unless of course you've taken too much Viagra or something). The emission phase of ejaculation is under the control of the sympathetic nervous system, which of course has lots of adrenergic receptors. The author reasons that ejaculation will stimulation adrenergic receptors in the refractory period immediately afterward, and stimulation of your adrenergic receptors will give you relief from your cold.

high levels N-methyl-D-aspartate that raises testesterone