The components in the seminal plasma attempt to compensate for this hostile environment. Basic amines such as putrescine, spermine, spermidine and cadaverine are responsible for the smell and flavor of semen. These alkaline bases counteract the acidic environment of the vaginal canal, and protect DNA inside the sperm from acidic denaturation.
Blood in the semen can cause a pink or reddish colour, known as hematospermia , and may indicate a medical problem which should be evaluated by a doctor if it does not readily disappear.
Thus, it is a measure of fertility in a man. It is the sperm in the semen that is the fertile component, and therefore semen quality involves both sperm quantity and sperm quality.
In studies, women who did not use condoms but instead absorbed semen vaginally sustained a better mood. Research has not demonstrated that the semen is the cause or simply correlates with the ultimate cause of the difference in mood between women who use condoms and those that do not.
If symptoms dissipate with the use of a condom, it is possible that a sensitivity to semen is present. Mild cases of semen allergy can often be overcome by repeated exposure to seminal fluid.
According to Qigong theory, energy from many pathways/meridians becomes diverted and transfers itself to the sexual organs during sexual excitement. The ensuing orgasm and ejaculation will then finally expel the energy from the system completely. The Chinese proverb (pinyin: y d jng, sh d xu, literally: a drop of semen is equal to ten drops of blood) illustrates this point.
Blood is an example of such a fluid, but semen was also widely believed to be of supernatural origin and effect and was, as a result, considered holy or sacred.
There is an ancient Chinese belief that jade, in particular, was the dried semen of the celestial dragon.
In the traditions of Bali, it is considered to be the returning or refunding of the milk of the mother in an alimentary metaphor. The wife feeds her husband who returns to her his semen, the milk of human kindness, as it were. Bellows, Laura J. (2003).
Source: Wikipedia > Semen
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