What are free radicals?

What are free radicals?
Why are they damaging to the human body? And how does vitamin E and the other antioxidant nutrients help protectthe body against free radical damage?

们为什么要破坏人体?又有何维生素E和其他抗氧化营养素有助于防止自由基损伤身体?
Understanding radical ~ 了解自由基
Free radical damage to the human body, is actually a process of oxidation, therefore, wish to reduce free radical damage, it is necessary from the antioxidative effect.
自由基对人的身体受极大的损害,实际上是一种氧化過程,因此,如果降低自由基的害,就要从抗氧化作起

Some free radicals are unstable molecules, other compounds are electron snatch in the human body, for example, proteins, enzymes or cells e. These electrons are taken away proteins, enzymes or cells will be damaged and lose functionality. There are a lot of free radicals, because every day we are exposed to all kinds of pollutants, these pollutants will produce large amounts of free radicals. In addition, every breath we will produce thousands of free radicals. This is because oxygen in the body's metabolic processes, also produce free radicals. These free radicals all the time in serious harm to human health.

自由基是一些不稳定的分子,它们在人体内抢夺其它化合物的电子,例如蛋白质、酶或者细胞中的电子。这些被夺走电子的蛋白质、酶或者细胞,就会损坏,失去功能。自由基大量存在,因为我们每天都会接触到各类的污染物质,这些污染物都会产生大量的自由基。此外,我们每一次的呼吸,都会产生数以千计的自由基。这是因为氧在人体内的代谢过程,也会产生自由基。这些自由基每时每刻都在严重危害人体健康

In recent years, newspapers and magazines regularly publish reports about free radicals and antioxidants, many people have heard of free radicals, but it can not tell what is radical in the end.A free radical is a compound having an unpaired electron, which is an odd number of electrons with atoms, molecules or ions. Since the unpaired electron, the unstable free radicals are very active, must be obtained from an external electron to reach steady state.
近年來,报张杂志经常刊登有关自由基与抗氧化物质的报导,很多人都听过自由基,但不知道自由基到底是什么
 
A free radical is a compound having an unpaired electron, which is an odd number of electrons with atoms, molecules or ions. Since the unpaired electron, so the radicals are very active and unstable, must obtain an electron from the outside, in order to reach a steady state.
自由基是具有不成对电子的化合物,也就是具有奇数电子的原子、分子或離子。由於电子不成对,所以自由基非常活跃而不稳定,必须从外部取得一個电子,才能达到稳定状态
Generally, the radical outwardly snatch electrons process will damage normal cells, while the manufacture of new radicals, which cause a series of chemical reactions.
一般來说,自由基向外抢夺电子的过程中,会对正常细胞造成伤害,同時制造出新的自由基,而引起一连串的化学反应
 
Radicals would have no selective attack normal cells and tissues, causing a chain reaction of peroxide, the body appeared a variety of degenerative syndrome, such as blood vessels become fragile, immune function decline, brain cell aging, degenerative arthritis, cataracts, sagging skin and systemic aging.
 
自由基会毫无选择性的攻击正常细胞和组织,引起连锁性的过氧化反应,使人体出现各种退化性症候群,如血管变脆弱、免疫功能衰退、脑细胞老化、退化性关节炎、白内障、皮肤松弛和全身性的老化现象

Free radical damage to the human body, is actually a process of oxidation, therefore, wish to reduce free radical damage, it is necessary from the antioxidative effect. Antioxidants function is to release its own electronic activity of free radicals, cause harm to the human body to stop oxidation, prevent cell damage.

自由基对人的身体受极大的损害,实际上是一种氧化過程,因此,如果降低自由基的害,就要从抗氧化作起。抗氧化物的功能就是把本身的电子释放,中和自由基的活性,制止对人体造成伤害的氧化反应,预防细胞受损

Radicals produced by the body from two sources: first, in vivo synthesis or metabolism of free radicals, including the maintenance of good health necessary radical (such as nitric oxide free radicals), and causes bad radical chain oxidation reaction (such as oxygen radicals and their derivatives); Second inducing factor from the outside, such as smoking, air pollution, stress
and other factors.
产生的自由基有两种来源:一是体内合成或新陳代謝产生的自由基,包括维持健康必需的好自由基(如一氧化氮自由基),还有引起连锁氧化反应的坏自由基(如氧自由基及其衍生物);二是來自外在的诱导因子,如抽烟、空气污染、压力等因素

Nitric oxide is essential to sustain life free radicals. Nitric oxide has 15 electrons, by the synthesis of arginine in the body, the human body is extremely important, the major neurotransmitter in the brain, but also to relax blood vessels, but also to promote male erection, but also the role of sterilization menace.

一氧化氮是維持生命不可或缺的自由基。一氧化氮有15电子,可由精胺酸在体內合成,对人体极为重要,是脑部主要神经博导物质,也能松弛血管,还能促进男性勃起,又有殺菌灭毒的作用
 
However, nitric oxide can cause excessive certain diseases, such as septic shock, multiple sclerosis, diabetes, organ transplant rejection can also cause disease.

过,一氧化氮过多也会引起某些疾病,如败血休克症、多发性硬化症、糖尿病,也會造成器官移植排斥症

Most of the free radicals are harmful bad elements, such as oxygen free radicals and their derivatives. Oxygen radicals are byproducts of human breathing, oxygen in the body during metabolism will get an extra electron, and the formation of oxygen free radicals. Approximately 3% of the oxygen becomes oxygen free radicals.

大多数的自由基都是有害人体的坏分子,如氧自由基及其衍生物。氧自由基是人类呼吸的副產物,氧氣在體內代謝過程中會得到一個额外的电子,而形成氧自由基。大約有3%的氧氣会变成氧自由基
 
Oxygen free radicals are oxygen-derived free radicals in the other, such as hydroxyl radicals, alkoxy radicals, these oxygen radicals have a strong oxidation, collectively known free radical oxidation. The main function of oxidative radicals is to perform immunization, resist the invasion of bacteria or viruses, but also harm the body of excess free radical oxidation.

氧自由基会衍生出其他含氧的自由基,如氫氧自由基、烷氧自由基,這些含氧的自由基都具有強烈的氧化作用,统称氧化自由基。氧化自由基的主要功能是執行免疫工作,抵抗細菌或病毒的侵袭,不過氧化自由基過量也會伤害人体

Lipid oxidation radicals will become lipid peroxidation, destruction of tissue and deoxyribonucleic acid (DNA) of cell integrity, so that hardening of the arteries, or even cause genetic mutations, which is called "oxidative stress."

氧化自由基會把脂质变成过氧化脂质,破坏细胞的组织及去氧核糖核酸(DNA)的完整性,使血管硬化,甚至引起基因突变,这就是所为的「氧化压力」

Air pollution (such as automobile and factory emissions), changes in water quality, life stress, smoking, ultraviolet radiation, high-energy radiation (such as X-rays), uneven diet, food, pollution and other factors, will induce the body to produce large amounts of free radical oxidation.

空气污染(如汽車及工厂废气)、水质变化、生活压力、抽烟、紫外线、高能量辐射(如X光)、饮食不均、食物污染等因素,都會诱导人体产生大量的氧化自由基

After the formation of free radicals like iron rust metal oxide as the gradual erosion of the various parts of the body, when the damage reaches a certain level and can not be repaired, the body will be visible signs of aging or disease.

自由基就像铁金属氧化之後形成的铁锈一样,逐渐侵蚀身体各個部位,当损害到达一定程度而无法修复时,人体就会出现明显的老化或病变
 
Damage caused by free radicals on the body are numerous, the most obvious is that chronic diseases, including cancer, stroke, heart disease, diabetes, arthritis, gout, cataracts, Alzheimer's, immune system disorders, nerve atrophy, sexual function decline ... etc. . It is estimated that there are about one hundred kinds of diseases related to the destruction of free radicals.
 
自由基对人体造成的伤害不胜枚举,最明显的就是慢性疾病,包括癌症、中風、心臟病、糖尿病、关节炎、痛風、白內障、老人痴呆、免疫系统失調、神經萎缩、性功能衰退等。据估计,大约有一百多种疾病都跟自由基的破坏有关

Unlike bacterial chronic diseases, acute viral disease, but is gradually formed along with aging and degenerative diseases. In general, chronic or degenerative disease occurs mostly in people over 50 years old who; But then again, if you do not pay attention to the daily care, despite raging radicals in the body, it is likely to occur "prematurely" in , the early chronic diseases.

慢性疾病不同于细菌、病毒引起的急性疾病,而是伴隨老化而逐渐形成的退化性疾病。一般來说,慢性或退化性疾病大多发生在五十岁以上的人身上;不过话又说回來,如果不注重日常保健,任凭自由基在体內施虐,便很可能出現「未老先衰」的情況,提前罹患慢性疾病

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