A substance found in fish oil may be associated with a significantly reduced risk of developing Alzheimer’s and other dementias, researchers reported yesterday. The scientists found that people with the highest [docosahexaenoic acid](http://en.wikipedia.org/wiki/Docosahexaenoic_acid “Wikipedia Article”), or DHA, were about half as likely to develop dementia as those with lower levels.

[Read](http://www.nytimes.com/2006/11/14/health/14alzh.html?ex=1321160400&en=84d1e746f912f5d0&ei=5088&partner=rssnyt&emc=rss “Read the Story”) (New York Times)