Molds have been on the Earth for millions of years. The spores float through the air, landing on every surface. Mold grows where there is moisture, plus a food source, and a humid temperature. As common as mold spores are, they concern us for two reasons: our health and damage to our property. How Dangerous Is Mold? Most molds aren’t dangerous to humans, but the U.S. Centers for Disease Control reports that there is sufficient evidence to link indoor mold exposure to respiratory problems among generally healthy people. Extended periods of concentrated exposure to mold can create additional problems that are even more serious. According to WebMD, mold sensitivities in people can cause major allergic reactions like shortness of breath or asthma attacks, skin rashes, and eye and nose irritations. Mold growth can cause a number of problems for homeowners, causing those with allergies to suffer, and impacting the health of sensitive populations or those with compromised i