Thick blood refers to an increase in the number of tangible components in the blood, resulting in increased resistance to blood flow and slower blood flow. The increase in the number of red blood cells and platelets in the blood, the increase in blood lipids and some protein components may make the blood sticky. The symptoms of thick blood mainly include the following: 1, dizziness in the morning: some people feel not clear-headed and not smooth thinking after waking up in the morning, but after dinner, the spirit is at its best, which is likely to be a manifestation of high blood viscosity; 2, sleepy after lunch: healthy adults can tolerate the sleepy feeling after lunch, while people with high blood viscosity are sleepy after lunch, and if they do not rest, they will be unwell and The whole afternoon is lethargic. This is due to blood viscosity caused by insufficient blood supply to the brain, only a short nap, the mental state will be significantly better; 3, squatting chest tightness: blood thick people are more obese, these people are difficult to squat on both knees, or squatting when working chest tightness shortness of breath. This is because when people squat, the blood flow back to the heart will be reduced, if the blood is too viscous, it will make the lungs, brain and other important organs ischemia, resulting in breathing difficulties, breathlessness; 4, purple lips after labor, easy shortness of breath: some people’s lips are blue-purple, and a little physical labor, there will be shortness of breath and other symptoms. In addition to beware of blood stickiness, these people should also pay attention to check whether they are accompanied by cardiovascular and pulmonary pathologies.