There are many reasons why the elderly often catch colds, such as not paying attention to warmth, poor surrounding environment, and personal immunity decline. 1. Not paying attention to warmth: the elderly usually do not wear more clothes and do not pay attention to warmth, especially in the cold winter, it is easy to cause cold and immunity decline, which leads to frequent colds. 2. Poor surroundings: Poor air circulation in the environment where the elderly live can lead to the growth of pathogenic bacteria in the air, thus leading to frequent colds. 3. Decrease in personal immunity: The elderly body itself is gradually weakening, and all body functions and indicators will gradually decline, and immunity will also gradually decline, so it is very easy to suffer from the influence of the above factors, which will lead to frequent colds. The elderly often cold, but also alert to other diseases caused by similar cold symptoms may, it is recommended to do a good job in the daily life of the elderly care work, if necessary, can consult a doctor, follow the doctor’s instructions to take standardized treatment.