A new health study links damp, moldy homes to depression. To conduct the study the World Health Organization went to thousands of homes and asked residents a series of questions. They asked if they had depressive symptoms, such as decreased appetite, low self-esteem, and sleeping problems. They visually checked each household and looked for spots on walls and ceilings that indicated mold. The study concluded that a how healthy and clean a home is can affect a person’s health and well being.