Reference news from June 5, 2005 to1October 8, 6th edition.
Women's skin will age quickly when they smoke.
[Japan's "Daily News" Evening Edition reported on September 14] Compared with non-smoking women, the skin of smoking women will be "five years older", which is the result of a survey conducted by a Japanese cosmetics company on 300,000 women aged 20-70 about the relationship between skin condition and smoking. Few people in the world have conducted such a large-scale investigation on this issue before. Smoking is the enemy of those who want to keep good skin.
According to the company, melanin in cells is the cause of skin spots and dullness, which will increase with people's age. On the skin in good condition, its content is less and evenly distributed, while on the partially discolored skin, its content is more and unevenly distributed.
The company dyed the melanin in the collected cells and counted the melanin content of smokers and non-smokers according to their ages. The results show that there is a significant difference between them. When smokers started smoking around the age of 20, the melanin content in the skin of smokers was similar to that of non-smokers, but in all subsequent ages, the melanin content of smokers was higher than that of non-smokers 1 to 20%. In other words, they are five years older than the "skin age" of nonsmokers.
In addition, according to the factor analysis of whether people often contact ultraviolet rays, it is found that the difference in "skin age" between people who often contact ultraviolet rays and those who smoke is over 10 years old. As for the reason, the company's analysis is that "vitamin C, which inhibits melanin production and human color, is destroyed by smoking".
Low-toxic cigarettes are still deadly.
[Effie London165438+16 October] British British American Tobacco Company announced that a cigarette that can reduce the risk of cardiovascular diseases of smokers by 90% will be put on the market in 2006.
It is reported that after special treatment, the content of carcinogenic chemicals used in this "low toxicity" cigarette is lower than that of traditional cigarettes.
British American Tobacco said that this cigarette also has a new type of filter, which can filter out most toxic substances. The company revealed that they improved the drying method of tobacco and reduced the content of carcinogens produced in the combustion process.
Although British American Tobacco plans to market this new type of cigarette next year, it keeps the marketing plan of "low-toxic" cigarettes strictly confidential for fear of opposition from "no smoking" organizations. Some anti-smoking organizations believe that this new type of cigarette is a "cruel trick" of tobacco companies, aiming at attracting more smokers when the British government is preparing to introduce a policy to restrict smoking in public places like other governments.
John Britten, a professor of epidemiology at the University of Nottingham in the United Kingdom, pointed out: "In any case, smoking is harmful to health. Smoking this new type of cigarette is equivalent to jumping off the 15 floor of the building, not the 20th floor. In theory, it reduces the danger, but in fact it can kill people. "
(Excerpted from the reference message) 200511306
Why does smoking affect fertility?
Category: Eugenics Author: Cradle Net Source: Cradle Net Release Time: 2008-07-1714: 07: 47.
As we all know, smoking can cause respiratory diseases, such as pharyngolaryngitis, tracheitis, pneumonia and even lung cancer. However, people don't know that smoking also affects people's fertility. Smoking affects male fertility in the following three ways.
1, which affects the number, motility and morphology of sperm. Long-term smokers and people with low sperm count are less 17% than non-smokers, their sperm motility is nearly doubled, and the abnormal rate of sperm is significantly higher than that of non-smokers.
2, smoking will interfere with reproductive endocrine function, leading to impotence. Nicotine in cigarettes will interfere with endocrine function, inhibit the secretion of sex hormones and reduce the level of testosterone in plasma, thus reducing sexual desire, causing impotence and losing fertility.
A survey of 1 16 patients with cardiovascular disease and impotence in Victoria University of South Africa found that 108 people (93. 1%) were smoking. After measuring the penile blood pressure index of 400 middle-aged impotence patients in Paris, it was found that smoking accounted for two-thirds of impotence patients.
Judging from the incidence of impotence, smokers are twice as high as non-smokers, indicating that impotence is closely related to smoking. The reason is that harmful substances such as nicotine in smoke cause insufficient blood supply to penile arteries.
This has been confirmed by foreign experiments. They measured the penile arterial blood flow of 178 patients with impotence with a miniature instrument, and found that 25% of them had obvious obstacles in penile blood circulation when smoking. Only 7% of non-smokers have this situation.
The results of this experiment have been confirmed by scientists in other countries. They put an instrument on the penis of 42 smokers to measure the speed and degree of penile erection, and divided them into ABC three groups, each group 14 people. Group A smokes cigarettes with more nicotine, Group B smokes cigarettes with less nicotine, and Group C smokes cigarettes without nicotine. Smokers not only don't understand that smoking can lead to impotence, but also accept the hint that smoking can stimulate sexual desire. After smoking a cigarette, watch a strong erotic films and record the erection of penis. The results showed that penile erection in group A was the slowest and weakest, followed by group B, and group C was the fastest and strongest. Due to the slow occurrence of impotence caused by smoking, the parties cannot find it in time.
3, induce varicocele. The incidence of infertility caused by varicocele is 9%-4 1%. Long-term smoking is easy to induce varicocele, and its incidence rate is twice that of non-smokers. In varicocele of smokers, the proportion of oligozoospermia is as high as 50%, which is 10 times that of patients with varicocele who don't smoke, thus affecting fertility.
Therefore, there is no doubt that smoking affects fertility. Therefore, if you want to have a healthy offspring, you should make up your mind to give up smoking.
Smoking in pregnant women can lead to premature delivery and early placental abruption.
Pretoria, 26 Feb (Reporter Zheng Huanbin) The latest newsletter of the South African Medical Research Council published a research result of Taigebao Hospital: the probability of premature delivery of pregnant women with smoking habits can be increased by 8%, and the probability of placental abruption can be increased by 3 times. Premature delivery and early placental abruption (a common complication of pregnant women) are the two most common causes of neonatal death. Compared with the weight of babies born to normal pregnant women, the average weight of babies born to pregnant women who smoke is 250 grams less. The longer a pregnant woman smokes, the more she smokes, and the lighter the baby will be. A chronic disease research institute under the Medical Research Council of South Africa is making relevant plans to help pregnant women quit smoking. Cather, a researcher at the institution? Ehret pointed out that at present, the health department of the South African government has no corresponding policies or plans to encourage pregnant women to quit smoking. The agency will focus on disadvantaged women of color, because these women are at high risk of smoking during pregnancy. Research shows that about 94% midwives, doctors and pregnant women are interested in smoking cessation programs. Some midwives and doctors said that they lacked the necessary consulting skills, and expressed concern about the trend that the serious shortage of medical staff led to the reduction of health education time. Doctors pointed out that due to the lack of medical staff engaged in prenatal services for pregnant women in public health departments, there was little time for health consultation and great pressure. A study in the United States shows that a planned intervention in smoking cessation for pregnant women, even for 5 to 7 minutes at a time, can greatly improve the smoking cessation rate of pregnant women. For this reason, Eret believes that the consultation model widely used in American health system provides a good reference for South Africa. "Even if the smoking cessation rate of pregnant women increases slightly, its clinical effect is very obvious." He said that it should be an important task for the government to pay attention to the problem of pregnant women quitting smoking. The government health management department should take active measures to ensure the success of the plan.
/Zhang Wen/2005041013846.html
Reference News 6th Edition, June 65438+1October 65438+May 2006.
New york, Reuters 65438+1October 13.
The latest research results show that smokers have more reason to quit smoking if they are pregnant, because smoking may deform the baby's fingers or toes.
A study conducted by researchers using the information in the American birth database shows that babies born to smoking women are more likely to have deformities than those born to non-smoking women. The more pregnant women smoke, the greater the risk of child deformity.
This study, conducted by Dr. ManLiXing and Dr. Benjamin Chang of the University of Pennsylvania, is by far the largest study on the relationship between smoking and congenital malformation of fingers and toes. They published their findings in the medical journal Plastic and Reconstructive Surgery.
The researchers found that if the mother smokes at least 265,438+0 cigarettes a day, the risk of baby malformation is 78% higher than that of non-smoking mothers. Even if the mother smokes less than 10 cigarettes a day, the risk of deformity of the baby is 29% higher than that of the mother who does not smoke.
Dr. Benjamin Chang said that the extent to which smoking causes birth defects in infants is surprising. "We hope this study can show future mothers another danger of smoking," he said.
If pregnant women smoke secondhand smoke, their children will be violent in the future.
There are many discussions about secondhand smoke, but few scientific experiments. Recently, a scientific study published in the United States shows that pregnant women's second-hand smoke has a great influence on the fetus.
Lisa Gatzke-Kopp and Theodore Beauchaine of the University of Washington published a research report in the journal Child Psychiatry and Human Development. In the report, two scientists pointed out that if pregnant expectant mothers are often exposed to second-hand smoke, their children are likely to suffer from attention deficit hyperactivity disorder (ADHD) after birth, and there will be many behavioral problems. Psychologists call these pathological behaviors externalized psychosis, and the related symptoms are aggression, extremes, poor academic performance, extreme rebellion, drug abuse, and like stealing.
In fact, as early as last year, the US Department of Public Health released a report saying that passive smoking is very harmful to people's health, especially to women with fetuses. The research mentioned in this paper provides reliable evidence for this statement. 17 1 7 ~ 15 years old problem children participated in the experiment of Gatzke-Kopp and Beauchaine. In the experiment, the children were divided into two groups. In the first group, their mothers had never smoked second-hand smoke before birth. The mothers of the second group of children were "persecuted" by second-hand smoke at work or at home a few months before delivery.
The researchers found that if pregnant women often smoke or have smokers around them, many behavioral problems and even serious mental diseases, such as depression and anxiety, will occur after the birth of the child. Relatively speaking, children born in a smoke-free environment are much healthier.
Gazik-Kopp said: "In today's society, smokers are very common, which has become a very serious dark gray problem. Children under the cover of cigarettes have all kinds of problems with different degrees of severity. Generally speaking, the more exposure to second-hand smoke, the more psychological and behavioral problems children have. "
The researchers analyzed many factors that affect children's mental health, such as family income, whether parents take drugs, the weight of children at birth, whether parents have anti-social tendencies and so on. But from the results, passive smoking is still the main factor affecting children's health.
Gatzke-Kopp and Beauchaine believe that what really affects children's health is nicotine, a chemical component in second-hand smoke. Nicotine is an alkaloid in tobacco leaves. Animal experiments have proved that inhaling nicotine will interfere with the development of fetal brain and cause some changes in some key brain areas a few months before delivery.
Beauchaine said: "The evidence shows that if you are exposed to nicotine during pregnancy, the dopamine system in your child's brain will become too excited. Dopamine is an important chemical in the brain and is related to human behavior and cognitive ability. "
If the child begins to "smoke" in the womb, his body will be affected and it will be difficult to "sleep" quietly. When you grow up, you will become excited, rebellious, irritable, inattentive and unhappy. Scientists advise women who are about to or intend to become mothers to stay away from cigarettes. Because both direct smoking and passive inhalation of "second-hand smoke" will have a direct impact on children's health.
/forum/jktopic _ 54727 1 1 _ 18437 . html & gt； Healthy living > subject
Four new theories about the harm of smoking
Smoking harms the whole world, and the prevention and treatment of cancer should start with smoking ban.
Although people know that smoking is harmful to health, many people still can't stand the temptation of cigarettes. There are dozens of carcinogens in cigarettes, and about13 of cancers are related to smoking. Studies have shown that the prevalence of lung cancer will increase by 10~20 times and the prevalence of laryngeal cancer will increase by 3~6 times for long-term smokers. According to statistics, the number of people who die of diseases caused by smoking in China has reached hundreds of thousands every year.
Parents smoking damages children's blood vessels.
More and more evidence shows that passive smoking will destroy the antioxidant capacity of the body and damage the function of endothelial cells in arterial wall. Endothelial dysfunction is the early feature of vascular atherosclerosis and the basis of cardiovascular and cerebrovascular diseases. Free radical is an unstable molecule. In the process of oxidation, a tensional contractile agent will be produced, which will damage cells, make vasospasm thinner, and participate in the coagulation process, resulting in vascular occlusion. If both parents smoke more than 40 cigarettes a day, the level of angiotensin in children's blood will increase significantly. The results show that the increase of hypertension and diabetes in adolescents in recent years may be related to children's early passive smoking.
Third, the child's obesity is related to the mother's smoking during pregnancy.
A recent study found that the children of mothers who smoked during pregnancy were twice as likely to be obese as those of non-smoking mothers, and the possibility of being overweight was 43%. The risk of obesity and overweight in children is also related to the number of times mothers smoke during pregnancy, and the related reasons are still unclear. It is speculated that nicotine may have an adverse effect on fetal brain development, leading to problems in appetite control after birth.
Stay away from smoking and control your weight.
If a person exceeds the standard weight 15 kg, his life expectancy will be shortened by about 7 years, and if he is overweight by 5~ 15 kg, his life expectancy will be shortened by 3 years. Non-smokers around 40 years old are overweight by 5~ 15 kg, and their life expectancy will be reduced by at least 3 years. For women of the same age who are overweight 15 kg or more, 7 years will be deducted, and for men of the same age, 5-8 years will be deducted. A person who only smokes may lose seven years of life. If a person smokes and is obese, he will lose at least 13.5 years of life. Therefore, quitting smoking and maintaining normal weight are important "magic weapons" to achieve longevity.
Excerpt from: Food and Health 2005 0 1 Author: Xue Qindong