Alzheimer's disease is a degenerative, fatal disease that is the leading cause of senile dementia. To save memory from a young age, it is enough just to eat right. According to recent studies, regular consumption of fish helps reduce the risk of many cognitive disorders, including Alzheimer's disease.
This statement was made by scientists from the University of California. Cyrus Raji, M.D., led a team that studied the dietary habits of a large group of older Americans.
During the study, they found that eating fish at least once a week has a significant positive effect on the brain. Thus, in people who regularly consume fish, the volume of gray matter in the area responsible for memory is 14% higher than in people who do not consume this product. At the same time, the volume of the cortical area responsible for cognitive activity is 4% larger in the same fish lovers.
Dr. Raji noted that 4% is quite a large figure, especially in old age. A 14 percent increase in the volume of the area responsible for memory, he called phenomenal. The thing is that the better this area is developed, the less likely it is to develop Alzheimer's disease.
At first, scientists assumed that the positive effect of fish on the human brain is due to the presence of omega-3 acids in it. But during the experiment, blood tests were taken from the subjects, which refuted this assumption. After all, based on the analyzes, the level of this acid is in no way connected with the volume of brain regions responsible for cognitive activity and memory.
At the moment, scientists are confused about the reason for such a positive effect from fish. But they can say with accuracy the following: eating any type of fish has a positive effect on the brain, only the way it is cooked is important. During the study, a positive trend was observed only in those who consistently consumed steamed, grilled, or baked fish. Fried fish does not produce this effect.
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