Yes, as the saying goes: 3949, pigs and dogs freeze to death. It means extremely cold. Count nine songs, "1929 don't shoot, walk on the ice in 3949, watch weeping willows in 59, and hit six or nine heads in spring."

What are the precautions for four or nine days of health care:

The diet is mainly warm and the weather is cold in winter. We should not only replenish our bodies, but also pay attention to "temperature" to help our bodies accumulate energy.

"Warming up" is a tonic method of Chinese medicine, which refers to nourishing with warm drugs. Clinically, cinnamon, aconite, dried ginger and pilose antler are often added to nourishing yin drugs for the treatment of debilitating reactions such as weakened gastrointestinal digestive function, loss of appetite, decreased sexual ability and body fear of cold. On the one hand, it can offset the coldness of nourishing yin drugs, on the other hand, it can enhance the metabolism of human body and greatly enhance the therapeutic effect on debilitating diseases.

Go to bed early and get up late, and go out when the sun comes out. "It's cold, frail old man, don't get up in a hurry to exercise." Hui Gao suggested that people should stay in bed in winter, especially for the elderly. Don't get up in a hurry every day. After waking up, lie flat on the bed for a while and then get up.