Olga Sadiyarova reposted How to strengthen immunity and to win against cold House remedies for cold and flu. Natural methods of strengthening of immunity. The advantage and harm of folk remedies Short light day, temperature drops, fatigue, a stress, a lack of a dream and other factors reduce immunity and weaken protective barriers of an organism. How to strengthen immunity and to help an organism to resist successfully to viruses and bacteria which are especially active during a cold and crude season? Whether natural immunostimulators help - … to Clever house.