Signs of a Weak Immune System include frequent Cold, Infections, Digestive Problems, Delayed Wound Healing, Skin Infections, Fatigue, Organ Problems, Delayed Growth, Blood Disorder, and Autoimmune Diseases. The Immune System helps to protect the Body from Harmful Pathogens and other Environmental Risks. ImmuHance may help you to Boost your Immune System and fight Against the Signs of a Weak Immune System.