Omega-3 may slow the cognitive decline


When we speak of cognition, we are referring to the combination of mental processes that includes the ability to learn new things, intuition, judgment, language, and remembering. The impairment of cognitive health have important consequences for a person’s well-being, because persons who experience it may be unable to care for themselves. Cognitive impairment may occur at any age, but its probability increases exponentially with advancing age.

It is known that plasma levels of omega-3 fatty acids are related with the preservation of cognition: the higher omega-3 fatty acids plasma levels, the lower the rate of cognitive deterioration. Furthermore it is also known that physical activity can reduce the risk of cognitive impairment in old age and may reduce the cases of dementia. It has been proved that omega-3 intake plus aerobic exercise plus cognitive stimulation (training of cognitive skills, such as strategies to improve memory, and practice of cognitive tasks) prevents atrophy in brain regions related with Alzheimer’s disease in mild cognitive impairment people (gray matter volume in these areas is preserved or even increased). Omega-3 fatty acids, especially DHA, may slow the rate of decline in cognitive performance in mild forms of cognitive impairment and Alzheimer’s disease. Given that no effective pharmaceutical treatment of dementia is currently available, this is very important. If cognitive decline can be prevented or better treated, lives of many persons can be improved.




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