What is the biggest disease that harms human health at present?

First of all, the toxin in the air-automobile exhaust. The main pollutants in the air are carbon monoxide, hydrocarbons, sulfur dioxide, lead and mercury. , with automobile exhaust emissions. Among them, lead is a heavy metal element that seriously harms human health. It can affect nerve, hematopoiesis, digestion, urinary system, reproduction, endocrine, cardiovascular system, immunity, bones and other human organs. It seriously affects children's growth and intellectual development, impairs cognitive function and brain function, and even causes dementia in severe cases. Mercury poisoning can lead to meningitis, hypokalemia, renal failure and even shock death. 2. Mild killers-non-environmental cleaning agents and cosmetics. Inferior and low-priced cleaning agents generally contain a lot of caustic soda, and surfactants are not added according to the standard. A large amount of phosphate exceeds the standard and contains a large amount of urea, which is extremely harmful to human body. Phosphorus directly irritates the skin, including burning, pain, peeling, itching, chapped and other symptoms. It is a common source of sexually transmitted diseases such as contact dermatitis and diaper rash in infants. Diseases caused by detergent and washing powder poisoning account for 5% of the total outpatient service in the world every year. Cleaners and toiletries produced by regular manufacturers must meet the national hygiene standards for food safety, with weak alkaline pH and no sodium tripolyphosphate. Third, toxins from tobacco and wine-nicotine and ethanol. Nicotine is a cancer promoter, and its main components are carbon monoxide, carbon dioxide and acrolein. The content of tar and nicotine in cold smoke exhaled by smokers is twice that of hot smoke inhaled by smokers, twice that of benzopyrene, four times that of carbon monoxide and fifty times that of ammonia. Compared with non-smokers, the incidence of lung cancer, laryngeal cancer, esophageal cancer and bladder cancer in smokers is 8 to 0/2 times, 8 times, 6 times and 4 times higher respectively. Nicotine in a cigarette can poison a mouse, injecting nicotine equivalent to 25 cigarettes can poison a cow, and 20 cigarettes can poison a person. Ethanol, the main component of alcohol, has strong toxic and side effects. Excessive drinking can lead to drunkenness, headache, dizziness, nausea, vomiting, unstable blood pressure, arrhythmia, limb tremor, convulsions, coma, restlessness, loss of consciousness and even respiratory arrest. Fourth, toxins from drugs-hormones and antibiotics. Long-term medication and improper medication will lead to poisoning and malnutrition, which is called drug malnutrition in medicine. Excessive, excessive and miscellaneous drugs will produce a lot of toxins and endanger health. Long-term use of broad-spectrum antibiotics is easy to cause secondary infection and inhibit the growth of normal intestinal flora, thus causing other pathogenic bacteria to multiply too fast, leading to the lack of vitamin K and vitamin B in the body and easy to catch a cold. Hormone drugs are mainly manifested as neuroendocrine disorder, which is not conducive to protein's digestion and absorption, and sugar can not be converted normally, which contributes to children's obesity and premature development. 5. Toxins from crops-pesticide residues. Pesticides generally enter the human body through the digestive tract, respiratory tract and skin. After most pesticides are applied, their toxic active components or toxic degradation products, derivatives and metabolites will remain on the surface of vegetables, fruits and other crops for a long time, among which "BHC powder" and DDT mainly affect the human body in liver tissue. Animal experiments and human data show that the above two pesticides can cause chromosome aberration of blood cells. It is worth noting that organochlorine can enter the fetus through the placenta and be excreted through breast milk. Bactericides, herbicides and pyrethrins widely used in crops are highly toxic. Residues on vegetables and fruits enter the human body, which mainly inhibits the activity of acetylcholinesterase in blood tissue, thus causing a series of manifestations such as neurological dysfunction, sweating, tremor, insanity and language disorder. Fertilizer (urea, thiamine, etc.). ) is characterized by excessive sulfate accumulation in vegetables, which will form nitrosamines (carcinogens) in the human digestive tract. Sixth, toxins from the bedroom-decoration pollution. Many chemicals (formaldehyde, ammonia, benzene series, radon and radium, etc. ) is widely used in modern decorative materials. The toxicity and irritation of these pollutants mainly cause irritation and dryness of eyes, nose and throat, fatigue, headache, dizziness, memory loss, nausea, skin itching and other symptoms, which can lead to infant malformation, leukemia and cancer in severe cases. The release period of formaldehyde in wood-based panels is 3 to 15 years, the release time of oil-in-water coatings is above 1 year, and the radioactive substances in artificial marble can be as long as 7 years. The International Agency for Research on Cancer believes that radon is a carcinogen. Seven, calm killer-electromagnetic radiation of household appliances. After the computer is started, it will produce electromagnetic radiation, including X-ray, frequency folding, ultra-low frequency, electrostatic field and so on. The ultra-low frequency electromagnetic field generated around the computer will have adverse effects on pregnant women, making the embryo unable to develop normally, deformed or even aborted. Microwave emitted by microwave oven is a kind of high-frequency electromagnetic wave, which is between ultrashort wave and infrared ray and has strong penetrating power. Long-term contact will produce modern diseases such as headache, insomnia, forgetfulness and increased heart rate. Pregnant women and children should stay away from the microwave oven. When the TV picture tube is started, its cathode will emit an electron beam with extremely high energy, producing penetrating X-rays, which greatly reduces the negative oxygen ions in the air, easily causing headache, chest tightness and loss of appetite. Cell phone ultrashort wave is bigger than microwave oven. When people are exposed to radiation with uncontrolled ultrashort wave frequency, fatigue, headache and even disabling cataract will occur. Other electrical appliances with electronic, scanning, radar, vacuum tube and other functions will emit different degrees of electromagnetic radiation. Eight, environmental killers-domestic garbage and used batteries. Free radicals in domestic garbage are the most harmful exogenous toxins to human body. There are tens of thousands of harmful gases and carcinogens produced by oxidation and various chemical reactions in domestic garbage, which are spread through rats, cockroaches, mosquitoes, flies and other channels, and are the culprit of cholera, hemorrhagic fever and other diseases. Waste batteries contain a lot of heavy metals such as lead, mercury, cadmium, zinc and manganese, alkaline manganese, waste acid, waste alkali and other electrolyte solutions. Electrolyte of waste batteries can pollute soil and water 15 years. Pollution caused by unclean water sources. 70% of human tissues are composed of water, and 80% of blood is water. Water is the source of all life. Domestic sewage, food, processing, papermaking and other industrial wastewater contain a large number of polycyclic aromatic hydrocarbons pollutants such as phosphorus, nitrogen, arsenic, chromium, nickel, aniline and benzopyrene, and a variety of pathogenic microorganisms, which can induce dysentery, typhoid fever, cholera, infectious hepatitis, ascariasis, schistosomiasis, amebic dysentery, cancer and other diseases. Industrial sewage contains a lot of heavy metals, which easily pollutes domestic water and cultivated land, and enters the human body through the food chain, which increases the carcinogenic rate of human body by dozens of times and the incidence rate by hundreds. X. Toxins in food-junk food with high salt and high calorie. Garbage in human body is the chief culprit of human health and longevity. Regular consumption of junk food can produce more than 600 kinds of chemical wastes, 40 -2 trillion bacterial viruses and a total of 6,500 grams of toxins in the human body, which is prone to heart disease, vascular disease, hyperlipidemia, hypertension and diabetes, and leads to insomnia, dreaminess, irritability, mental fatigue, yellow skin rust, senile plaque, dry eyes, mental dullness and other sub-health states. Excessive intake of sodium in salt will cause a large accumulation of toxins such as cholesterol in the blood, leading to poor blood circulation. High-salt diet is the main cause of heart disease and cardiovascular and cerebrovascular diseases, and it is also an important cause of kidney calculi and urinary calculi. Eating high-salt and high-calorie food will lead to cell overload, fat accumulation, poor detoxification, excessive acidity and toxicity, which is the real cause of obesity.