Parameter Description

Heavy Metal:

Heavy metal content in food has a strict limit, so the excess heavy metal will cause harm. There is a provision about heavy metal content in food in China: cadmium is 0.03-0.2mg/kg, arsenic is 0.1-0.7mg/kg, and mercury is 0.01-0.05mg/kg. If these limits are exceeded, it could cause harm to the human body. The majority of chromium absorbed by plants from the soil is accumulated in roots, the minority of chromium is accumulated in stems and leaves, and the least chromium is accumulated in grains. Hexavalent chromium may enter the body from the mouth, respiratory tract or skin to causes bronchial asthma, skin erosion, ulcers and allergic dermatitis. Chronic exposure to chromium can also lead to respiratory cancer. Excessive consumption of cadmium-containing foods is mostly caused by acute poisoning, and the main symptoms are nausea, vomiting, diarrhea and abdominal pain. Lead compounds can mainly impact the nervous system, kidneys and the blood system of the human body, can also cause renal dysfunction and affect Children 's mental development and so on. Chronic arsenic poisoning is manifested as fatigue, weakness, palpitation, convulsions, skin damage, keratinization, molt, hair loss, pigment deposition and cancer. Harm of mercury on the human body is mainly manifested as headache, dizziness, numbness, pain, etc.

Stimulating Beverage:

These stimulating beverages have no or little electrolytes. If the person drinks these beverages after exercise, it is conducive to the body to add moisture after exercise and possibly results in the reduction of extracellular fluid osmotic pressure in the body due to the intake of a lot of moisture to accelerate the further loss of intracellular electrolytes. Some people like drinking ice water after exercise. Although people feel cool after drinking ice water, but the immediate drinking after exercise will stimulate gastrointestinal smooth muscle to cause gastrointestinal cramps and abdominal pain. Water temperature preferably is 15 to 40 Degree C, so the recovery process speeds up. The main ingredients of these stimulating beverages are sugar (or saccharin), pigment, carbonated water and carbon dioxide, these stimulating beverages almost have little nutrition besides certain amount of calories. If the human body takes in excessive synthetic flavors and pigment, it is harmful to the body, so we should drink less. Color juice: fruit juice is made from a variety of fruit juice, containing a variety of vitamins and sugars. Drinking fruit juice can supplement vitamins and inorganic salts in the body, organic acids can regulate the acid-base balance of body fluid, stimulate the secretion of digestive juice, promote appetite and invigorate the spleen.

Electromagnetic Radiation:

I. What is electromagnetic radiation? The interactive change of electric and magnetic fields generates electromagnetic waves, and the phenomenon of the air-launch or exposure of electromagnetic waves is called as electromagnetic radiation. The electromagnetic radiation exceeding the safety limit causes the electromagnetic pollution. At present, the electromagnetic pollution has become the first major pollution, being ranked before the sewage, waste gas and noise.

II. Electromagnetic radiation and physical health: on the subject whether the electromagnetic field (50-60HZ) of industrial frequency impacts the physical health, occident countries have made a large number of surveys and statistical analysis and obtain a surprising result: the probability of occurrence of human tumors is closely related to the low-frequency electromagnetic radiation.

III. Mechanism of electromagnetic radiation on the human body: the human body, being a conductor, can absorb electromagnetic energy. Under the action of electromagnetic field, the human body will cause thermal effects. The greater the strength of electromagnetic field, the more obvious the thermal effects are. In addition, it will interfere with the transmission of bio-electrical information of the human body.

IV. Harms of electromagnetic radiation on the human body are mainly showed: electromagnetic radiation can widely impact the human health, and can change neurological, reproductive, cardiovascular and immune functions, eye vision, etc. The main symptoms include headache, dizziness, memory loss, inability of concentration, depression, irritability, women's menstrual disorders, breast cancer, skin aging, breathing difficulties, back pain and so on. The rate of occurrence of leukemia of people often contacting with electromagnetic radiation is 2.93 times higher than that of the healthy people, and the rate of occurrence of brain tumors is 3.26 times higher than that of the healthy people.

Tobacco / Nicotine:

When the content of nicotine reaches 1.2-1.8 milligrams, the mouse can be poisoned. The main harmful component of cigarette is tar, and nicotinamide is one of component in the tar. The nicotinamide is usually referred to nicotine, and the harm of nicotine is well known. In other words, whether cigarettes or their substitutes in which have nicotine have harm to the human body. As long as the nicotine is inhaled into the mouth, it will definitely harm the human body. The Hazards of Smoking I. Carcinogenesis II. The effects on cardiac and cerebral blood vessels: many studies suggest that smoking is the major risk factor of a number of cardiovascular and cerebrovascular diseases; all the incidence rates of coronary heart disease, hypertension, cerebrovascular disease and peripheral vascular disease of smokers are increased significantly. Statistics show that 75% of patients of coronary heart disease and hypertension have the history of smoking. The incidence rate of coronary heart disease of smokers is 3.5 times higher than that of non-smokers, the mortality of coronary heart disease of smokers is 6 times higher than that of non-smokers, and the incidence rate of myocardial infarction is 2-6 times higher than that of non-smokers. By autopsy, we also find that the incidence rate of coronary atherosclerosis of smokers is wider than that of non-smokers. III. The effects on the respiratory tract: smoking is one of the main incentives of chronic bronchitis, emphysema and chronic airway obstruction. Experimental study finds that long-term smoking can damage and shorten bronchial mucosal cilia and affect the clearance of cilia. IV. The effects on the alimentary tract: smoking can generally cause gastric acid secretion to increase 91.5% than that of non-smokers, can inhibit the pancreas of secreting sodium bicarbonate to result in the increase of duodenal acid load, thereby inducing ulcer. Nicotine in tobacco can reduce the tension of pyloric sphincter to make bile easy reflux, thereby weakening defensive factors of stomach and duodenum mucosa, prompting chronic inflammation and ulcers to occur, and delaying the healing of the original ulcers. In addition, smoking can reduce the tension of esophageal sphincter, easily leading to reflux esophagitis.

Pesticide Residue:

The original body of pesticides, toxic metabolites, degradation products and impurities left on the organisms, subsidiary agricultural products and environment after use of pesticides are called as pesticide residues. People often only consider the residues of the original body of pesticides as pesticide residues and neglect toxic metabolite and the degradation products thereof. In fact, not only the original body is toxic, but also the chronic toxicity of its metabolites or impurities is equal to or more serious that that of the original body. Pesticides can alter hormones to result in women's secretion disorders, male oligozoospermia and low sperm survival rate; after the pesticides enter the body, one part is converted by kidneys and livers or expelled to increase the workload of the body to cause diseases; one part is combined with hemoglobin of blood to reduce its capacity for oxygen supply; and one part of fat soluble pesticides is deposited in the body fat.