For the prevention of infectious diseases of the respiratory system, it is necessary to limit contacts with already sick people, to reduce the degree of exposure to these organs of harmful impurities contained in the air: dust, exhaust gases, emissions from industrial enterprises, tobacco smoke, since all these impurities negatively affect the respiratory system. Industrial impurities make the respiratory system more susceptible to infectious agents. It is necessary to constantly increase the body’s resistance to infections, systematically tempering it. Hardening should be long and gradual, only in this case you can achieve the desired result.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.