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The mechanics of male sexual function

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European Urology Jun; 41 6: There is no need to worry about your size or performance any longer. Most likely, you may lack the confidence necessary to perform at your best and satisfy your partner. Studies have shown that this is often the result of micro penis syndrome. You are probably wondering if it is possible to solve this problem?
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Mechanics of human sexuality

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Untangling The Science On Bicycling And Sexual Function | CommonHealth

Now, since cost sets up a real economic dynamic, it is not hard to imagine human institutions responding to it through cultural evolution without there being an innate and genetic component. It would violate Ockham's Razor to gratuitously posit innate propensities if learned ones would already account for human institutions. This can be tested: If courtship behaviors are culturally created, then we would expect them to change if the costs of sex are dramatically changed. There appears to be some evidence of this. In a regime of "welfare rights," where the government supports any children women may have, we have seen male responsibility all but evaporate and many women, "welfare mothers," indulge in much of the same kind of irresponsible promiscuity that was supposed to be characteristically male. While this is a recent phenomenon, there is also some older evidence of it.
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Male Reproductive System

Most women deliver a baby spontaneously. However, complications that were present before labour or that develop during labour may threaten the life of the mother or of the baby and may require intervention by the attending physician. The medical care of pregnant women obstetrics and of female genital diseases gynecology developed along different historical paths.
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However, the sensations in both sexes are extremely pleasurable and are often felt throughout the body, causing a mental state that is often described as transcendental, and with vasocongestion and associated pleasure comparable to that of a full-contractionary orgasm. For example, modern findings support distinction between ejaculation and male orgasm. Orgasm may also be achieved by the use of a sex toy , such as a sensual vibrator or an erotic electrostimulation. It can additionally be achieved by stimulation of the nipples or other erogenous zones , though this is rarer.
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