虽然说性是爱的最高表现形式,是感情对肉体的驾驭,正常的性活动是在爱的前提下自然发生的,但这并不是说性应排斥科学知识,只凭感情就能进入至善至美的境界。性爱是一门艺术,它包含的内容实在很多,有些可以凭着感觉和激情来实现,有些却需要学习和塑造,更需要知识来指导。改革开放带来了性知识的普及,但很多人对此仍所知无几,身在误区者更是数不胜数。很多人都有这样的概念:一次性生活持续的时间越长获得的快感就越大,性生活就越美满,质量也越高。所以,许多人因此而刻意追求、盲目效仿,尤其是男性,往往会想方设法使时间延长,若不能如意,则十分扫兴,甚至还会对自己的性能力及健康情况产生怀疑,或心怀不安,或乱服补药。若问其一次性交时间多长为正常,他也说不清楚。其实,谁都知道,一次性交持续时间不可能太长,如果过长就不正常,就说可能有问题了, Although sexuality is the highest form of love, the manipulation of flesh, the normal sexual activity occurs naturally under the premise of love, but this does not mean that sexuality should exclude scientific knowledge and can only enter into perfection To the realm of beauty. Sex is an art, it contains a lot of content, some can feel and passion to achieve, while others need to learn and shape, but also need knowledge to guide. Reform and opening up have brought about the popularization of sexual knowledge, but many people still know little about it. There are countless number of people who are misunderstood. Many people have the concept that the longer a one-time life lasts, the more thrill it gets, the smoother sexual life, and the higher the quality. Therefore, many people therefore deliberately pursue and blindly follow the example of men, especially men. They often find ways to prolong their time and they are very disappointed if they do not wish to do so. They even have suspicions or feelings of unease about their sexuality and health, or Messy service tonic. If you ask how long a normal sexual intercourse, he also can not say. In fact, no one knows that a sexual intercourse duration can not be too long, if not too long, it may be a problem,