Fluoride plays an important role in protecting teeth against cavities. It's found in most toothpastes. But the reason it protects our teeth is that it is an extremely reactive element. It doesn't just destroy bacteria but also damages our own cells. Many studies have linked excessive levels of fluorides in drinking water with reduced IQ.
Interestingly the United States is one of the few developed countries where fluoride is added to tap water in the majority of municipalities in the country. 69% of Americans drink fluorinated tap water. In Europe Ireland is the only country where this practise is common. Only two other countries also add fluorine to the tap water in some regions, namely the UK (in Birmingham and Newcastle) and Spain (in the Basque country only). In spite of that Americans still have vastly more tooth decay then most Europeans. 92% of American adults have tooth decay against 28% of British people.
This video on the subject is really great.
As usual in the US there are huge variations between states and even municipalities. For example fluoride is added to 99.4% of tap water in Kentucky, but only to 13.6% of tap water in New Jersey.
As you can see there is also a lot of variations at the county level. Interestingly well the places like the San Francisco Bay Area, New York, Connecticut, Rhode Island or Massachusetts tend to have much lower fluoride level in water.
Interestingly the United States is one of the few developed countries where fluoride is added to tap water in the majority of municipalities in the country. 69% of Americans drink fluorinated tap water. In Europe Ireland is the only country where this practise is common. Only two other countries also add fluorine to the tap water in some regions, namely the UK (in Birmingham and Newcastle) and Spain (in the Basque country only). In spite of that Americans still have vastly more tooth decay then most Europeans. 92% of American adults have tooth decay against 28% of British people.
This video on the subject is really great.
As usual in the US there are huge variations between states and even municipalities. For example fluoride is added to 99.4% of tap water in Kentucky, but only to 13.6% of tap water in New Jersey.
As you can see there is also a lot of variations at the county level. Interestingly well the places like the San Francisco Bay Area, New York, Connecticut, Rhode Island or Massachusetts tend to have much lower fluoride level in water.
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