Lung Cancer: 6 Everyday Objects That Harm Your Health

Hairbrushes can harbor bacteria in surprising quantities. According to a study by the Korea Institute for Health and Society, they contain up to 300 times more bacteria than a toilet handle and 20 times more than a shoe rack.

These bacteria can cause itching, dandruff, folliculitis, and even contribute to hair loss. Clean your brush or comb in warm, soapy water for at least 10 minutes, then wash it thoroughly with a toothbrush. Then let it dry completely in the sun.
Remote controls

Television remote controls are a major source of bacteria. A study published in the Journal of Infection Prevention found that they harbor bacteria such as Staphylococcus aureus, Escherichia coli, pneumococcus, and Enterococcus faecalis, which can cause skin infections, pneumonia, abdominal pain, and urinary tract infections.