During sexual intercourse heart rate doubles, respiratory rate triples, and blood pressure increases considerably. The nervous exhaustion following intercourse can induce a state of amnesia, disorientation, and lethargy. In exceptional cases, the vascular and muscular excitement involved in arousal and orgasm can produce even more unfortunate effects, especially in men, as Havelock Ellis describes:
Fainting, vomiting, involuntary urination and defecation, have been noted as occurring in young men after a first coitus. Epilepsy has been not infrequently recorded. Lesions of various organs, even rupture of the spleen, have sometimes taken place. In men of mature age the arteries have at times been unable to resist the high blood-pressure, and cerebral haemorrhage with paralysis has occurred. In elderly men the excitement of intercourse with young wives or with prostitutes has sometimes caused death. 
Many partners find that bouts of passion are followed by ‘hangover periods’, in which they feel emotionally alienated from each other. Marnia Robinson links these see-saw relationships to body chemistry . The buildup to orgasm is accompanied by the release of dopamine, the craving neurochemical, which creates intense anticipation of pleasure. (Dopamine surges are associated with all addictions.) Orgasm triggers a burst of pleasure neurochemicals (endorphins and oxcytocin), as do compassionate caring, altruism, and affection. But orgasm also releases prolactin, which lowers sexual desire and can cause depression. The common result is a cycle of compulsive sexual gratification followed by an emotional slump. Stressful relationships lead to high levels of cortisol, which is sometimes called the death hormone because it can age us rapidly and lower our immunity to disease.
2.. The preservation of semen is the secret of good health and longevity, and of
all success in the physical, mental, intellectual and spiritual planes. He who has even a
little bit of Brahmacharya will tide over a crisis of any disease very easily.
3.. “All waste of spermatic secretions, whether voluntary or involuntary, is a direct waste
of the life-force. It is almost universally conceded that the choicest element of the
blood enters into the composition of the spermatic secretions. If these conclusions are
correct, then it follows that celibacy in life is essential to man’s ultimate well- being.”
4… discharge seminal energy in bad dreams or wet dreams. Due to excessive loss of semen, enlargement of testes and sometimes pain in the testes develops. The
evil after-effects that follow the loss of seminal energy are dangerous. Persons are
physically, mentally and morally debilitated. The body and the mind refuse to work
energetically, because the semen is not used up in the body to form Ojas that give
vibrant health, strong will power and sound mind. Later on, such people develop
impotency for the testices cannot produce semen with normal sperm count. Life for him
loses all zest, zeal and charm. He becomes a victim of a number of diseases like
anaemia, loss of memory, gloominess, palpitation of heart, pain in the back, loins,
head and joints, weak kidneys, fickle mindedness, enlargement of testes, pain in the
testes, debility, nervous breakdown, restlessness of mind, lack of thinking power, etc.
He goes through hellish suffering.
i think celibacy knowledge should be giving to each child in scool rather than sex education
sex education or celibacy education? about celibacy importance?