为什么不同人种的性格差异明显

我们都知道，欧美人的性格相比亚洲人来说呢，要相对的富有冒险精神和具有攻击性。我曾经以为这是人种的问题，但是我在美国学习生活了很多年之后，我发现这不仅仅是人种的问题，更重要的原因是饮食结构的区别上。 为什么这么说呢？因为我当时很仔细的观察了他们的饮食结构，大致上分为两类，一类呢，是比较普通的家庭，他们大多以肉为主食，像烤鸡、炸鸡还有牛排，牛排还都是半熟的， 他们的性格呢，就相对的暴躁一些，更具有攻击性。而另外一类人呢，是家庭条件比较好的，他们更注重饮食的健康，他们的饮食偏法式，更多的是以面包等这类谷物为主食，所以他们的性格也相对 斯文一些。美国的部队在作战前都会给士兵加量的吃火鸡，是因为火鸡的蛋白质含量非常的高，会让士兵处于亢奋的状态，从而有利于他们打胜仗。 而我在黄帝内经中也读到过类似的话语，说老虎和狮子为什么攻击性这么强，是因为他们以生肉为食，乃血肉有情之品。而羊和鹿为什么性格这么温顺呢？是因为他们以草为食， 这也充分的说明了饮食结构对性格是有影响的。克拉拉大学的汤姆斯教授曾经在二零零九年做了一个分组实验，实验的结果表明呢，非素食主义者的行动力和积极性是要略高于素食主义者的， 而素食主义者的稳定性和头脑的清晰度则要略高一些，是因为水果和蔬菜里面的维生素 和膳食纤维对人体的健康起着非常重要的作用，因此呢，在日常生活中要巧妙的进行合理的饮食搭配，可以大大的降低食物对情绪产生的负面作用。

so now you guys can think about this， but i'll tell you why i think the personality differences between men and women exist now these are speculative hypotheses， but they're reasonably well documented by the relevant literature so let's think about it the first thing we might think about is what's the difference between men and women how do they differ well the first thing we might observe is that if you look at personality differences between pre pubescent boys and girls they're not very large boys and girls don't differ in terms of their trait neuroticism for example what happens is that when puberty kicks in women's traitor autisism rises and it stays higher than men for the rest of their life and this is why you see this reflected in the different kinds of psychopathology that be set the two sexes so men are overrepresented in alcoholism， drug abuse antisocial personality and a host of learning disorders as well as attention deficit disorder and women are overrepresented in depression and anxiety primarily that seems to be tightly associated with higher levels of trait neuroticism because maybe it's if you're at the 95 percentile or higher let's say in trait neuroticism there isn't much different than difference between that and being somewhat prone to depression and anxiety and because the curves overlap the the curves aren't identical the normal distributions are identical for men and women you tilt the one to the to the right to the women's curve to to the right towards higher levels of neuroticism you go out and you look for the person in 20 who has the highest levels of negative emotion it's much more likely to be female than male okay， so let's see if we can figure out why so we're going to tell you some things basic different differences between men and women and you can tell me what you think about it if you agree or disagree okay， first size differential emerges between men and women at puberty right because boys and girls are roughly the same size and roughly the same strength， but men get bigger at puberty when the testosterone kicks in and more importantly not only do they get taller and heavier， but their upper body strength is much higher and that's a real issue for combat because human beings punch there's other animals that do that kangaroos do that too a so we're not the only people that punch but we have clubs on the ends of our arms and so that's how we defend ourselves and so if you have a lot of upper body strength especially across the shoulders and you're heavier than you can step into the punch and it's a lot more devastating now it is the case that if you look at the statistics for physical altercations in marriage women attack their husbands more often the husbands attack their wife's why is that well let's assume that there isn't any reason other than both people in a relationship can get upset and the women know that if they hit their husbands nothing's really going to happen right because if you're a well， you know if you're a woman about that high and your husband is say my height you're unless you hit me with an object or something that sharp the probability that you're gonna do me any serious damage is pretty low you might hurt me， but if i do the reverse and hit you and i really hit you then i might kill you and so the reason at least one of the reasons why women can be more physically aggressive in minor ways in a relationship is because everyone knows the wife and the husband equally that the consequence of the physical aggression is much more limited so men do more serious damage to women women are more aggressive in relationships so that's interesting so okay so there's a body sized difference that's important a strength differential that's important next thing i think so let's assume that the reason that women are hire in sensitivity to negative emotion is because the world is actually more dangerous to women right because that would be the most logical reason why there would be a sex difference in something like fear or sensitivity to punishment well first， there's the danger of physical altercation second， there's the sexual danger so women become sexually vulnerable at puberty and why do i say vulnerable well， it's straightforward it's because the cost of sex for women is way higher than it is for men or it certainly has been throughout our evolutionary history because if a man has an unwanted sexual encounter well， then he walks away and maybe he's persecuted by the state or prosecuted by the state for it， but if a woman has an unwanted unwarranted or in cautious sexual encounter and she ends up pregnant then well in traditional societies that's you're just done and even in modern societies that are rich like ours you're it's it's it i don't have to go into that it's big trouble no matter what you do about it it's big trouble so being being more nervous about that makes perfect sense but then here's the last thing and i think that women's nervous systems are not adapted to women i think women's nervous systems are adapted to the mother infant diad， because you are not the same creature when you have an infant not at all you're way more vulnerable and it's partly because you have to express their vulnerability of the infant and you also have to care for it right， so you think about an infant especially under nine months， so let's say how are you going to be wired up if you're going to optimally care for an infant under nine months and i'm saying under nine months because women generally do the bulk of child care for infants who are under nine months old and part of the reason for that there's a whole host of reasons， but part of the reasons for that obviously is that they breastfeed， but imagine what you need to be wired up biologically in order to care for an infant first of all they're very demanding right， because they're completely helpless and they're demanding 24 hours a day and it's quite it's quite a， it's quite a emotional load and an infant under nine months is never wrong right what you do to an infant under nine months is when they're in distress you always respond you never tell the infant get your act together and stop whining right， which you can do say to an end to a child that's 18 months old you can start having that sort of conversation but under 9 months it's like nothing is the infant's fault it's surrounded in an extraordinarily， threatening world and you have to be responsive to what it needs regardless of what you want and you have to be very sensitive to the threats that emerge in the environment and so i think the price that women pay for that ability to have an intimate relationship with inference in the very earliest stages of development is that their nervous systems are actually wired so that they can perform that rule optimally and the disadvantage to that is that having a temperament like that doesn't work that well， when you're dealing with adult men especially， when you're dealing with them in a business environment because it's not the same thing not at all it's a competitive environment so okay， so agreeable people are compassionate and polite what are disagreeable people like。