The extent to which innate or acquired immunity is strong depends on the general health of the body, some chronic diseases and environmental influences. Acquired immunity is known to develop after exposure to certain diseases or vaccinations. Therefore, those who say that a child must be exposed to childhood diseases in order to be free of them or to be more resistant to them later are right. Moreover, in some cases, immunity to certain diseases is acquired for life, while in others it is gradually weakened. A strong immunity requires a certain internal biochemical balance within the body. Otherwise, resistance to colds and infections is reduced, and one feels weak and tired quickly. If we want to avoid these phenomena, we must come to the aid of our immunity. It has long been known that certain nutrients, such as vitamins for immunity, are good for strengthening immunity. Health professionals often prescribe vitamins C, D or E, and zinc and selenium supplements to strengthen immunity. Vitamins D3 and D5 are the most popular immunity-boosting vitamins in countries where the sun is scarce during the cold season. Immunity vitamins are what we can get either through food or supplements. The problem is that many of us live a lifestyle of industrial foodstuffs that lose some of their nutrients in the processing. In addition, many people tend to consume a wide variety of foods that cannot provide the body with all the nutrients it needs. As a result, more and more people are incorporating dietary supplements into their daily routine, just like breakfast, lunch, dinner or routine hygiene.
