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[Meroplâncton]

STUDIES ON THE RELATIONSHIP BETWEEN PLASMA TESTOSTERONE LEVELS AND HUMAN SEXUAL ACTIVITY
SUMMARY

A prolonged study relating plasma testosterone levels to coitus is reported in one male subject. Testosterone levels in samples taken during and immediately after sexual intercourse were significantly higher than those found under resting conditions. A significant difference was not apparent between testosterone measurements taken before and after orgasm, and coitus did not appear to affect plasma luteinizing hormone levels. A marked nyctohemeral rhythm was observed in testosterone levels which tended to be higher early in the day. Masturbation had no significant effect on plasma testosterone levels in seven subjects.




ENDOCRINE EFFECTS OF MASTURBATION IN MEN
SUMMARY

The levels of pregnenolone, dehydroepiandrosterone (DHA), androstenedione, testosterone, dihydrotestosterone (DHT), oestrone, oestradiol, cortisol and luteinizing hormone (LH) were measured in the peripheral plasma of a group of young, apparently healthy males before and after masturbation. The same steroids were also determined in a control study, in which the psychological anticipation of masturbation was encouraged, but the physical act was not carried out. The plasma levels of all steroids were significantly increased after masturbation, whereas steroid levels remained unchanged in the control study. The most marked changes after masturbation were observed in pregnenolone and DHA levels. No alterations were observed in the plasma levels of LH.

Both before and after masturbation plasma levels of testosterone were significantly correlated to those of DHT and oestradiol, but not to those of the other steroids studied. On the other hand, cortisol levels were significantly correlated to those of pregnenolone, DHA, androstenedione and oestrone.

In the same subjects, the levels of pregnenolone, DHA, androstenedione, testosterone and DHT in seminal plasma were also estimated; they were all significantly correlated to the levels of the corresponding steroid in the systemic blood withdrawn both before and after masturbation.

As a practical consequence, the results indicate that whenever both blood and semen are analysed, blood sampling must precede semen collection.

As coisas no nosso corpo não funcionam tão simples assim "aumentou testo ótimo abaixou ruim". As interações são inúmeras e complexas que muitas vezes coisas contraditórias são verdade, como comer gordura ser melhor para emagrecer que comer pãozinho homoafetivo de 294 grãos (). Por exemplo se você AGORA comer uma caralhada de doce, vai ficar "energizado" por ter glicose no sangue. No entanto, no longo prazo, os efeitos não serão de te tornar mais forte e enérgico. Cheirar cocaína também não vai te fazer bem apesar de, de imediato, te deixar "ligadão"...

Estou no trampo lendo rápido, mas tarde em casa entrarei e comentarei tudo melhor...