What is arthritis? Detailed answer

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What is arthritis? Detailed answer

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What is arthritis?

The word arthritis is used in relation to a large number of diseases associated with the joints. There are two main types of arthritis: age-related and rheumatic. Age-related arthritis is associated with aging. Rheumatoid arthritis is caused by inflammation and is usually accompanied by some deformity of the body. With age-related arthritis, the temperature does not rise, there is no weight loss, no complete ossification of the joints, no curvature of the body. The joints don't get inflamed. This is an age-related disease, and it usually begins after forty.

The cartilage of the joints, which, as you know, serve as a "shock absorber", that is, a kind of protection against concussions and shocks, are erased and broken, as a result of which the surfaces of the bones begin to touch. Symptoms of this disease are stiffness or pain when moving the joint. Bumps form on the last joint of the index and middle fingers. Age-related arthritis is often accompanied by pain and poor mobility of the knee joints. Rheumatoid arthritis is better known as rheumatism. With this disease, inflammation of the joints occurs.

The articular cavity connecting the bones of the joint begins to swell and eat into the cartilage. At the same time, the bone under the cartilage also changes, losing minerals. As a result of this, the joint gradually loses its mobility and may eventually become completely stiff - and the person becomes disabled. What is the cause of this type of arthritis, medicine has not yet fully figured out.

There are many theories about this, and one of them is that arthritis is caused by an infection. The victims of this disease have long dreamed of a miracle cure that could end their suffering. But so far, their dreams have not come true.

Medical professionals want people to understand that the nature of this disease is still unknown and that drugs that seem to help only provide relief for the duration of their use. As soon as you stop taking the medicine, the disease returns. Medications are unable to restore damaged joint tissues.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Are the temperatures the same at the North and South Poles?

For most of us, the North and South Pole regions are mysterious. We just have vague ideas about what they represent and think that they are probably very similar to each other.

But, surprisingly, there are more differences between the Antarctic (South Pole region) and the Arctic (North Pole region) than similarities. The South Pole region is mostly occupied by a continent called Antarctica. This ice and snow covered continent is almost twice the size of the United States. Conversely, the area of the North Pole is occupied by the Arctic Ocean, which washes the shores of North America, Europe and Asia.

Another difference is that people, animals and plants gradually moved north, towards the North Pole, gradually adapting to polar conditions. And in the region of the South Pole, separated by hundreds of kilometers of the surface of the oceans from the rest of the continents, with the exception of South America, neither animals nor humans can exist.

Of the vegetation, only lichens, mosses, herbaceous plants and some types of flowers are represented.

By the way, one of the reasons why the penguins successfully mastered this area is the absence of enemies here.

What is the climate like in Antarctica? Its two main characteristics should be noted: low temperatures even in summer and the strongest winds in the world. And in the region of the North Pole, air currents, rising from the surface of the surrounding ocean, slightly increase the temperature. In Antarctica, where the main part of the continent is covered with ice, cold air masses with high pressure are formed. Therefore, the climate here is more severe than at the North Pole.

Even during the summer months, the average temperature in Antarctica is below freezing! On some days the temperature can rise above 4 °C, but in the middle of summer there are days with temperatures below zero. In winter, the average temperature in the area of the South Pole is -23-35 °C.

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White sharks make animals stressed 11.12.2017

A scientific group from the University of Montana began to study how the neighborhood in the underwater world affects the psychological state of the inhabitants there. They were able to establish that white sharks are the main source of stress for many marine animals.

The study went on for several years. Experts observed how the life of fur seals from different colonies living in the waters of South Africa goes. It was possible to establish that the animals experience the greatest danger precisely when white sharks appear nearby. It was at these moments that the levels of the stress hormone cortisol in animals increased significantly.
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