It seems that our bodies are often prone to fatigue, but it seems that our daytime work or study has not reached such an intense level, which leads to physical fatigue. What is the reason? In fact, psychological fatigue can often lead to physical fatigue, but how can we distinguish between the two?
If mental activity lasts too long, fatigue will also occur. Many people have such experience: when you read or calculate hard for too long, you will feel dizzy, memory will decline, and thinking will become dull. This is mental fatigue. Its cause is similar to physical fatigue. It is the result of the shortage of oxygen and nutrients required for cell activities. It is also caused by the accumulation of fatigue toxins generated in mental activities.
Scientists have found that the oxygen free radicals in “fatigue toxin” and their induced oxidation reactions are the result of long-term toxicity, which are important reasons for biological aging. At the same time, “fatigue toxin” will weaken the immune system everywhere in the body, and the reduction of natural killer cells will greatly increase the chance of cancer.
Psychological fatigue, also known as mental fatigue or psychogenic fatigue, is different from physical fatigue and mental fatigue. It generally does not occur in the process of work or learning, but often occurs at the beginning or even before it starts. Feel very tired, do not want to move, lose interest in work or study, or get bored in serious cases. Therefore, it has been proposed that people with mental fatigue are not unable to do or learn, but unwilling to do or learn.
In addition, there is comprehensive or mixed fatigue, which exists at the same time. Therefore, only one method of rest can not be eliminated. We should distinguish different situations and adopt comprehensive methods of rest.
How to distinguish physiological fatigue (fatigue caused by fatigue) from pathological fatigue (fatigue caused by disease)?
The first is to find out the causes of fatigue. There are clear reasons for any physiological fatigue. For example, physical fatigue occurs during heavy or long-term physical activities; Mental fatigue occurs in the process of mental labor that lasts for a long time or has too much intensity; Psychological (mental) fatigue occurs more often than mental overload or mental disorder; Mixed fatigue is a combination of the above factors. Pathological fatigue is different. In general, there is no clear cause. If you don’t pass the comprehensive and systematic examination of the hospital, you can’t find the cause. Therefore, some people call it “fatigue with unknown cause”. This is the most important characteristic of pathological fatigue.
Secondly, see if fatigue can be easily eliminated.
Physiological fatigue will be gradually eliminated after a reasonable rest. Psychological fatigue can be eliminated slowly. If the spirit is happy, it can be eliminated faster. However, pathological fatigue caused by disease can not be effectively achieved only by general rest. It must be treated with drugs or other treatments. Fatigue will be completely eliminated when the disease is cured. Therefore, obstinacy is regarded as the second important feature of pathological fatigue.
At the same time, pay attention to whether there are related symptoms.
Physiological fatigue is generally not accompanied by other symptoms, mainly fatigue. Pathological fatigue is often accompanied by other symptoms. Different diseases have different symptoms. For example, patients with viral hepatitis often have loss of appetite, nausea, yellow urine, liver pain and other symptoms at the same time; Fatigue caused by pulmonary tuberculosis is often accompanied by low fever, night sweat, dry cough, emaciation and other symptoms;
Fatigue caused by diabetes is often associated with symptoms such as overeating, polydipsia, polyuria and weight loss; Patients with hematological diseases often have symptoms such as anemia, fever, bleeding tendency (gum bleeding, bleeding spots or spots on the skin). Therefore, if there is fatigue with unknown causes and difficult to eliminate, and accompanied by some symptoms, you must not take it lightly, and should go to the hospital as soon as possible.
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