研究:性生活有益大脑健康成长

　　However, the rodents that only saw females once in two weeks had elevated levels of stress hormones, while the rats that had regular access showed no increase in the hormones. Sexually experienced rodents also proved less anxious than virgins, in that they were quicker to chomp down on food in unfamiliar environs.

　　尽管如此，两周只见了一次雌性小鼠的雄性小鼠体内，压力激素水平还是有所升高，另外一组常与雌鼠相见的雄性小鼠则没有变化。“处男鼠”比性生活次数较多的雄小鼠更容易焦虑，而后者在陌生环境中进食反应依旧灵敏。

　　These findings suggest that while stress hormones can be detrimental to the brain, these effects can be overridden if whatever experiences that triggered them were pleasant.

　　这些发现表明，压力激素对大脑有不利影响，而只要产生压力激素的经历是令人愉悦的，结果则正好相反。