Besides the importance of a proper dietary ratio of linoleic to alpha-linolenic acid in maintaining the polyunsaturated fatty acid composition of neuronal and glial membranes, membrane loss of polyunsaturated fatty acids has been found in such neurodegenerative disorders as Alzheimer's and Parkinson's diseases, and it has been suggested that a diet with a proper balance of omega-6 to omega-3 fatty acids may help delay or reduce the neurologic effects of these diseases. A fatty acid preparation with a ratio of omega-6 to omega-3 fatty acids of 4, which is practically identical to that in hemp oil, has been shown to improve the quality of life of Alzheimer's disease patients.
A study posted Tuesday in the online journal Molecular Psychiatry says that Alzheimer's disease may be the result of an infection. As a virus, Alzheimer's might also be transmittable. In trials with rats, Alzheimer's has exhibited these characteristics. Here's a proof: Alzheimer's disease may be contagious, study suggests.