The new research is the first to measure community water fluoridation exposure during childhood and any potential impact on cognition up to age 80.
The paper is here
The new research is the first to measure community water fluoridation exposure during childhood and any potential impact on cognition up to age 80.
The paper is here
Now see, strokes are a different matter. Studies from China (where naturally-occurring fluoride levels in some places can range from 1.2 to 4.5 mg/L, far exceeding the U.S. recommended level of 0.7 mg/L) have indeed found a correlation between very high fluoride exposure and stroke risk.