Is it necessary to get a flu vaccine?

　　Under normal circumstances, it is necessary to receive the influenza vaccine. If needed, it is recommended to do so under a doctor's guidance. The detailed explanation is as follows:

　　Influenza viruses are highly contagious and capable of mutation, often leading to widespread infection during flu season. After receiving the influenza vaccine, the human body produces specific antibodies against the influenza virus, enabling rapid identification and elimination of the virus upon invasion. This effectively prevents the occurrence of influenza and plays an important role in protecting individual health and avoiding the discomfort and inconvenience caused by the flu.

　　In addition, the influenza vaccine can alleviate flu symptoms and reduce the risk of complications. Even if someone becomes infected with the virus after vaccination, symptoms are usually milder than in unvaccinated individuals due to the presence of existing antibodies. The vaccine also lowers the risk of developing severe complications such as pneumonia and myocarditis caused by influenza. It is especially an effective method for preventing influenza and its complications in high-risk groups such as the elderly, children, pregnant women, and individuals with chronic diseases.

　　In daily life, it is important to maintain adequate sleep and engage in moderate exercise, avoiding excessive fatigue and staying up late, in order to maintain a good physical condition.