Copper and human health, human health can not be separated Copper Copper is one of human health can not be missing one of the few metal elements. These elements and amino acids, fatty acids and vitamins are essential for the body's metabolic processes. It is worth noting that the human body itself cannot produce copper, so the human diet must provide enough copper to ensure normal copper intake. A ball bearing is a type of Rolling-Element Bearing that uses balls to maintain the separation between the bearing races. Ball Bearings Ball Bearings,Precision Ball Bearings,Stainless Steel Ball Bearing,Non-Standard Ball Bearing Ningbo Ritbearing Imp & Exp Co.,Ltd. , http://www.ritbearingchina.com
How much copper is there in the human body?
The copper content in adults is between 1.4 and 2.1 mg per kilogram of body weight. Therefore, a healthy person with a weight of 60 kg should contain about 0.1 g of copper in the body. Although this number is small, it is vital and indispensable for maintaining human health.
What is the function of copper in the human body?
Copper in the human body combines with certain proteins to form enzymes that act as catalysts to help achieve a range of human functions. Some enzymes provide the energy needed for biochemical reactions in the body, and some enzymes are involved in the conversion of skin pigments. Additional enzymes can help form crosslinks between collagen and elastin, thereby maintaining or repairing the linkage between cellular tissues. This is especially important for the heart and arteries. The study concluded that copper deficiency is an important factor leading to coronary heart disease.
Have we got enough copper?
Until recently, the general view was that the vast majority of people were able to obtain the right amount of copper. However, the latest research shows that this is not the case. For example, the metal content of many typical catering recipes was analyzed in the United Kingdom and the United States. According to the results of the survey, only 25% of American residents consume more copper per day than the National Academy of Sciences' Food and Nutrition Committee considers appropriate. Typical US daily recipes tend to provide only half of this level, while in many industrialized countries, catering recipes are only 40% of this recommended standard. In the UK, current copper intake is recommended to be 0.4 mg/day (1-3 years old infants) to 1.2 mg/day (adults). In addition, the latest research suggests that the nutritional structure of the catering with a copper content of less than 1 mg/day is not suitable for adults.
Is there too much copper in the human body?
The recommended standards of the World Health Organization (WHO) and the Committee on Food and Agriculture are that the average copper intake for adult men does not exceed 12 mg/day and the average copper intake for adult women does not exceed 10 mg/day. This standard is based on a study of a group of people in a particular population group. The above values ​​are considered to be suitable for all personnel intake, and biochemical data indicates that the population has the slightest response. Excessive copper retention in children with chronic hepatic dysmenositis or certain genetic diseases such as Wilson's disease in Indian children is caused by liver damage and often has fatal consequences. Symptoms of acute copper poisoning are nausea, vomiting, abdominal and muscle pain. Excess copper in the body can be eliminated by using a special chelating agent or by taking large doses of zinc . [next]
Which foods contain more copper?
Many foods are rich in copper. These foods include pits (especially Brazilian fruit and cashew nuts), seeds (especially sunflower seeds), chickpeas, liver and oysters. Common foods such as cereals, meat and fish generally contain copper. As long as the diet is balanced, it can provide 50% of the daily copper intake. For the British residents, they also get copper supplements from drinking water, because the drinking water pipes are copper pipes and trace amounts of copper directly enter the water. However, for most regions, the copper content of drinking water is not enough to fully provide the daily copper intake of the human body. It is also important to note that many drinking water filters claim to filter out metallic elements, including the essential element of the human body, copper. This is not necessarily a good thing.
Copper in medicine
Copper has been used as a medicine for thousands of years, and its applications include healing chest trauma and purifying drinking water. Studies in recent years have pointed out that copper can effectively help suppress inflammation of diseases such as arthritis. The development of copper-containing drugs for anti-ulcer and anti-inflammatory is underway, and they can be applied in radiology and in the treatment of cramps and epilepsy. There is currently no sufficient epidemiological evidence that copper can prevent arthritis, but many clinical trials have shown that the use of copper bracelets can indeed alleviate arthritis.
Is copper toxic?
If someone accidentally drinks copper nitrate or copper sulfate solution, it will be poisoned. Therefore, these solutions should be taken care of when placed. In addition, copper rarely causes trouble. These solutions, as well as the organic salts of copper, are vomiting agents, and occasionally a large dose is usually vomited. There are very few cases of chronic poisoning caused by excessive copper in the human body. The only few cases are excessive copper retention in the body due to liver diseases. The liver of healthy people excretes copper with great energy. For this reason, there are no reports of chronic copper poisoning in copper.
Copper and human health Copper is one of the special trace elements that are indispensable for human health. In order to ensure certain normal human functions, people's daily dietary structure must provide enough copper. The normal development of animals and plants also requires a certain amount of copper, which is very beneficial for humans to obtain copper through the food chain. Copper is found in a variety of foods. Generally speaking, a scientific and reasonable diet can provide the copper that people need every day without additional supplements. It should be noted, however, that changes in diet structure, such as restrictions on certain foods for medical reasons, may result in insufficient copper intake.
The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least three races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other.
Ball Bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.