1. Maintain good hygiene The influenza virus is transmitted through droplets of saliva that are emitted when talking, coughing or sneezing and that serve as transport for microorganisms found in the respiratory tract; the flu is not resistant to products such as soap, so washing your hands frequently, especially if you have been in contact with an infected person, reduces the risk of infection. 2. Use disposable tissues It also helps prevent the spread of the flu. If you do not have tissues on hand, it is not convenient to cover yourself during a sneeze with your hand, since they are the extremities that are used to interact with others, so it is more convenient to cover yourself with your forearm. 3. Ventilate rooms often It is convenient to try to keep the environment sanitized, carrying out habits such as frequently ventilating the rooms in order to renew the air. 4. Eat well The spread of the flu depends largely on the strength of the immune system. A good diet is key to strengthening defenses against viral and bacterial threats. Eating foods rich in vitamins A and C, such as oranges, lemons, limes, and dark green leafy vegetables, will help boost the immune system. In addition, a balanced diet, such as the Mediterranean, is an important source of vitamins and minerals, which provide the necessary energy to alleviate any disease. 5. Exercise The regular practice of exercise also helps to strengthen the immune system, since sport increases the body's adaptation systems to effort and one of them is the increase in defenses. It is very important to rest between exercise sessions and not force your body when you already have the flu, that is, it is not the same to practice sports as a form of prevention against infections than to try to cure yourself with exercise. Rest is just as important as playing sports. In this regard, experts recommend adults to sleep an average of 7-8 hours each day. 6. Avoid sudden changes in temperature It is very important to bundle up well to alleviate these changes. You should also avoid warm clothing indoors, because when you go outside again, sweat and cold are the perfect combination to catch the flu. This responds to the fact that during the fall and winter, ciliary motility is reduced, a type of defense that exists in the cells that sweep the mucus, thus increasing adherence and bacterial invasion in it. 7. Avoid tobacco and alcohol consumption In addition to being harmful to health, these substances weaken the immune system and lower defenses, making the body more vulnerable to diseases such as the flu if alcohol or tobacco is ingested.