The document provides tips to boost the immune system. It explains that the immune system protects the body from harmful bacteria and viruses. A weak immune system can lead to illness and infection. The document lists foods and lifestyle habits that can weaken the immune system like an unhealthy diet, stress, and lack of sleep. It then gives immune boosting tips such as eating green leafy vegetables, fruits, staying hydrated, exercising, managing stress, and getting enough sleep. Supplements like colostrum, multivitamins and vitamin C are also recommended to support the immune system.