When a person encounters strong emotions that are beyond his endurance, the body will automatically start self-protection, such as fainting, amnesia, coma and so on. You said that people laugh when they are extremely sad or desperate, which is also an automatic protection measure for the body, and may be a buffer for strong * * *.
Why does pain or extreme sadness cause a runny nose, but laughter doesn't? When people are in pain or extremely sad, there is a passage between the eyes and the nasal cavity, which is anatomically called "nasolacrimal duct". Usually, tears are secreted by lacrimal glands and return from the veins in the corner of the eye. When people cry, tears flow into the nasal cavity through the nasolacrimal duct.
Why do people only change after extreme sadness? Because you can't be sad anymore, you will change.
Why do people laugh when they are extremely sad?
It's raining. ...
Boys and girls are boyfriend and girlfriend,
Boys are very playboy,
But girls are very devoted to boys.
Girls like rainy days and get wet.
Every time a girl ran out of the umbrella and got wet,
Boys often want to get wet with her,
But they were all stopped by girls.
The boy always asks, "Why don't you let me get wet with you?"
The girl always answers, "Because I'm afraid you'll get sick!" "
Boys will also ask her, "Then why are you wet?"
But girls always laugh and don't answer.
In the end, it is often the boy who can't beat the girl and agrees to her request.
Because boys are happy as long as they see girls happy,
But the happy time won't last long.
The boy likes another girl,
I like her better.
One day, while the boy and the girl were having dinner,
He asked to break up,
And the girl silently accepted it.
Because she knows that boys are like the wind,
The wind won't stay for anyone.
That night, it was the last time that the boy sent the girl home.
In the girl's house downstairs, the boy kissed the girl for the last time.
The boy said, "I'm sorry, I failed you!" But being in the rain with you is my happiest time! "
The girl sobbed when she heard this.
The boy held her.
After a long time,
The boy said to the girl, "I have long wanted to ask you a question." Why don't you let me accompany you every time you get wet? "
After a long time, the girl said slowly, "Because I don't want you to find out … I'm crying!" " "
Why do people turn gray overnight after extreme sadness? Is it possible to get white hair overnight?
Have you read bride with white hair by Liang Yusheng, a famous martial arts writer? This is a very touching love story (it's a pity that the adapted films played by Leslie Cheung and Brigitte Lin are out of shape. ) Zhuo Yihang, the little boss of Wu Tangmen, fell in love with wolf girl, the heroine raised by wolves. Because wolf girl always detests evil and treats others openly, he is ruthless, and the underworld is afraid of her, and Bai Dao dare not approach her.
Zhuo Yihang, who has always been indecisive, had to leave wolf girl temporarily and return to Wudang Mountain for practice because of the reprimand of the three great masters. Wolf girl, who missed his lover, was determined to go to Wudang Mountain to meet his lover. He was scolded by Master Zhuo Yihang and resolutely refused to retaliate (this is a great tolerance for wolf girl, who has a strong personality). Sure enough, when I arrived at Wudang Mountain, I was immediately besieged by three Wudang masters. Wolf girl took a block for three blocks and went easy on everyone. The three masters angered Zhuo Yihang, who was watching the game at a loss, and didn't make a move. Zhuo Yihang panicked and threw his knife into the field. He didn't mean to hurt wolf girl, but wolf girl saw that he had listened to Master's call, so he moved his hand on her. In a rage (I'll show it to you when I'm dead), he jumped on the flying knife thrown by Zhuo Yihang, got stabbed in the chest, and even fled down the mountain. Day and night, wolf girl lost his mind and was heartbroken, muttering to himself: He actually touched me, and he touched me. Love is lacking. wolf girl, who has been holding perfectionism, finally decided to give up and walk to the lake, hoping to wake up with cold water and stand up again. Unexpectedly, a white-haired banshee appeared in the lake. If you look carefully, who is the lady in the water, not yourself? It turns out that wolf girl's hair turned gray overnight because of excessive aging! Is this story possible? No way! Unless the lake is full of bleach. No condition of the body can affect the hair that has grown out. To remove melanin from hair, we can only use oxidation (bleaching and fading).
Besides "bride with white hair", there is also a story about an English aunt among the condor heroes of Jin Yong, who lost all her hair overnight because she couldn't save a seriously injured child. History is a record of Wu Zixu's white hair overnight. I think it's all made up to strengthen the tension of the story.
Juvenile white hair
Hair changes from black to gray (black and white) and from gray to white, which is the external feature of people gradually entering old age. This is because the human body is gradually aging, and the hair at the hair root, like other organs of the body, has gradually weakened its function and produced less and less melanin, resulting in a natural change phenomenon. However, some people turn white at a young age. Of course, it is not because the body is aging and the ability of hair to produce melanin is weakened, so it is an abnormal phenomenon. This is medically called "juvenile white hair". So, what is the cause of "juvenile white hair"? So far, there is no satisfactory exact answer in medicine. According to research, it may be related to the following factors.
(1) Mental factors: If a person is depressed for a long time, in a bad mood or is highly nervous and overworked, his hair can turn from black to white. For example, during the Spring and Autumn Period and the Warring States Period in China, Wu Zixu, a doctor of the State of Wu, suddenly became white-haired overnight in order to muddle through Zhaoguan. The French writer Hugo described in his Les Miserables that when the mayor of Hou Delin decided to go to court to admit that he was a prisoner after a fierce and painful ideological struggle, "his gray hair turned white in just one hour". Both historical legends and literary descriptions are exaggerated, but after all, it shows that people have long believed that the change of hair from black to white is related to mental factors.
(2) Nutritional status: Hair is an appendage of the skin, and it needs adequate nutrition just like organs and tissues in other parts of the body. Different races have different hair colors. White people have blond hair, and brown people have red and black hair. We yellow people are brown and black because the pigment particles in our hair contain copper, diamonds and iron. If you lack inorganic salts such as copper, cobalt and iron in your diet for a long time, it will naturally affect the synthesis of melanin and make your hair turn from black to white. In addition, according to medical clinical observation, if the body lacks protein, vegetable oil, vitamin B 1, vitamin B2 and vitamin B 6 for a long time, it will also lead to the hair turning from black to white.
(3) Diseases, drugs and heredity: Diseases, drugs and heredity are also factors that cause hair to turn from black to white. Endocrine disorders such as pituitary dysfunction and hyperthyroidism, consumptive diseases such as tuberculosis, typhoid fever and pernicious anemia, and autonomic nervous dysfunction are all diseases that have been found to be related to hair turning from black to white.
At present, the main methods to treat juvenile gray hair are oral administration or external application of traditional Chinese medicine, * * * and so on. For example, peach kernels are soaked in clear water for about 3 days, then peeled and boiled into peach kernel sugar in white sugar water, with 8 ~ 10 capsules twice a day for 2 ~ 3 months; Mixing Polygoni Multiflori Radix, Radix Angelicae Sinensis, Fructus Ligustri Lucidi, Semen Cuscutae, and Ecliptae Herba, pulverizing, and making into honeyed pills with weight of 10g, taking 1g three times a day for three months; 40 grams of Platycladus orientalis leaves were soaked in 60% alcohol 100 ml for 7 days, and then the scalp was wiped with its liquid medicine, 2 ~ 3 times a day for 2 ~ 3 months; Comb your hair with your fingers and scalp for 5 ~ 10 minutes 2 ~ 3 times a day. Long-term persistence also has a certain therapeutic effect.
The most important thing to prevent juvenile white hair is to eliminate the objective factors that induce white hair. If you have a few white hairs, don't be too nervous; Don't be too tired and nervous; Broad-minded, optimistic, and keep a good mood; Pay attention to scientific catering, eat more coarse grains, miscellaneous grains, dried and fresh fruits and all kinds of vegetables, and don't be picky eaters and partial eclipse; Develop a good habit of sitting and lying occasionally and living regularly.
Why do people laugh because they don't want to cry when they are in extreme pain?
Don't want to show your cowardice.
So I laughed.
What does it mean to dream of extreme sadness and crying?
This shows that it is necessary to expand your career or the mobile sector, because you have started something new, besides what you are currently doing.
Why do you cry and sweat when you are extremely sad? Because there are too many tears, the eyes are not enough to flow out, so they flow out of the hair ~ ~
Why do people become incontinent when they are in extreme panic? Excitement of parasympathetic nerve will relax bladder detrusor and constrict sphincter.
Why is it cool when people are growling? At this time, the meridians are unobstructed, the mood is comfortable, and it is very cool.