during the early years of life there are some crucial biological developments that happen which cannot be recreated later on in life — and building a strong immune system is one of them. Just like any other muscle in our body, the immune system needs to be exercised in order to fully develop and become strong enough to resist illness and disease. Playing in the dirt as a child turns out to be the ideal training to build your immune system’s overall fitness. By Guest Writer Alexandra Du Toit

Source: Dirt is NOT Dirty – How Playing in the Dirt Benefits the Immune System | Wake Up World