Why do the children fell sick more during 2-5 years?
Young children have immature immune systems and have not yet developed immunity to a wide variety of common germs. On top of that, babies, toddlers and young children are extremely physically engaged in their environment. Most children start to get colds after about six months of age. This is when the immunity they received from their mom fades. After that, they have to build up their own immune system. Babies, toddlers, and preschoolers may get as many as seven to eight colds a year. Infants and young children are more likely to get a serious illness from germs that animals can carry because their immune systems are still developing. The following are some of the causes: Evolved Germs Lower Immunity More Frequent Medication More Germs, Pollution, and Allergens in the Environment Hygiene Habits ...