Commonly, such as frequent standing work positions may induce lumbar disc herniation, with symptoms if not treated in a timely manner will aggravate the condition. Another example is chronic nephritis hematuria, proteinuria, if rest is not good, the condition will continue to develop and even eventually lead to kidney failure. Active hepatitis should also rest, the treatment of hepatitis, rest and conditioning is more important than drugs. For the cardiovascular system, the general cold, fever, diarrhea is not enough to cause heart damage, but some viral infections may cause myocarditis in some patients, in the early stage of the cold symptoms, once myocarditis, especially explosive viral myocarditis may occur in a very short period of time, leading to sudden death, heart failure and other serious consequences, even if survived may also be left with a variety of arrhythmias, several years Even if you survive, you may still have various arrhythmias and develop dilated cardiomyopathy after several years. Therefore, when you have a cold and fever, you must seek medical attention promptly if you have significant general discomfort, if your pulse rate increases out of proportion to your fever (usually the pulse rate increases 10 times per minute for every degree of increase in body temperature), and especially if you have symptoms such as severe panic, irregular heartbeat, shortness of breath and chest pain. Diarrhea that is frequent and dilute watery may cause disturbance of water-electrolyte balance and easily induce cardiac arrhythmia, which should also be promptly treated and adjusted. For general chronic diseases, such as hypertension, if there are no obvious symptoms and the blood pressure is relatively stable, you can continue to work, but if the blood pressure is very high (more than 180/110mmHg) or rises quickly in a short period of time, you should promptly treat it, otherwise it may induce cardiovascular and cerebrovascular events. Drivers of public transportation should be strictly controlled, and should not drive transportation when their blood pressure is not satisfactorily controlled. Patients with coronary heart disease can go to work normally if their condition is stable and there is no major change in the frequency, degree, duration and physical activity tolerance of angina attacks, but they should avoid excessive physical labor and work at an intensity that does not cause angina attacks, and should carry nitroglycerin for emergencies. After myocardial infarction, after timely treatment, observation for one month, no heart failure, arrhythmia and other comorbidities, you can return to work and gradually increase the workload from light work. If you feel that angina attacks are significantly more frequent, aggravated, prolonged, and reduced physical activity tolerance within a short period of time, clinically known as unstable angina, you should seek medical attention promptly. Never delay because work is not done or the onset is at night, etc. There was once a very important senior intellectual, a member of the Chinese Academy of Sciences who felt chest discomfort at work, because the work in hand could not be put down, and it was night, did not go to the hospital, insisted until the next day at noon really unbearable to go to the hospital, the result was diagnosed as a large myocardial infarction, has missed the most important reperfusion treatment time (within 6 hours of onset is best, can not exceed 12 hours), the result secondary to severe heart failure and practically no way to function normally afterwards. At the onset of angina symptoms, you should immediately stop activities, stabilize your emotions, and take 1 tablet of nitroglycerin (or use oral spray), and after 5 minutes if there is no significant relief you should go to the nearest hospital emergency room to check if acute myocardial infarction has occurred. Patients with chronic cardiac insufficiency due to various reasons, if they can tolerate the normal activities of daily life when their symptoms are stable, they can go to work to do management, clerical, storekeeper, janitorial, and mail-order work, but they should not engage in physical labor. If the amount of activity you can tolerate is less than your daily life, you should not go to work. Patients with chronic diseases such as hypertension, coronary heart disease and diabetes are advised to carry a small card with the diagnosis of the disease, which can provide clues to the hospital in case of emergency.