It seems like nothing is as good as it is supposed to be anymore, and every single day science uncovers the truth about how some new thing causes cancer or any number of other conditions.
One classic example is styrofoam, which has been in use for common items like disposable cups and plates for years. It turns out that the material contains certain compounds that are known to lead to cancer.
Another compound that is the center of a new health controversy is fluoride, a compound of the element fluorine. Fluoride is typically added to municipal water supplies in the United States, and it is used by dentists to help fight tooth decay.
Fluoride is in toothpaste and many mouthwashes, and it is meant to strengthen teeth.
However, recent evidence has shown that it has devastating side effects to the human nervous system, and other reports claim that the dental benefits of fluoride have been grossly exaggerated. Many people argue the benefits of using fluoride to prevent tooth decay are outweighed by the negatives.
To avoid ingesting more fluoride than necessary, check the labels on any bottled water you buy. The labels will indicate whether or not the bottle includes fluoride, and if it does, you should either throw out those bottles or avoid buying them.
Overexposure to fluoride can lead to fluorosis, which can actually cause horrible tooth distortion and decay. Some studies even claim fluoride can reduce IQ and cognitive ability, especially in children younger than eight year old.