Fri, 06 Mar 2009 10:07:56 GMT | PressTV
The French researchers declared that higher levels of silica appear to decrease the risk by reducing the oral absorption of aluminum or by increasing the excretion of this metal.
"Further studies are needed to settle the debate over the link between aluminum or silica in drinking water and neurologic disorders and cognitive impairment," the research team added.
The findings of the study are published in the February 15 issue of The American Journal of Epidemiology.
Previous studies have shown that following a Mediterranean diet -- one rich in fruits, vegetables, fish and olive oil -- can help improve memory and tackle Alzheimer's disease.
From a separate study, scientists indicate that drinking apple juice might improve mental performance and subsequently tackle the risk of developing Alzheimer's disease.
Scientists are optimistic that their findings will help pave the way for developing new drugs to treat Alzheimer's.