Thoughts

The Deterioration Of Memory In Overweight People

Researchers have determined that young people suffering from overweightedness or obesity have a weaker memory than their slender counterparts.  Hence, in order to have optimal memory, people should avoid excessive weight.

Neuroscientists from Rush University in Chicago have found out why people who have excess weight suffer from memory loss three times more often than people of normal weight. The neuroscientist researchers conducted their experiments in mice, but claimed that the findings could also be used to explain memory loss in obese people for the same reason.

The researchers found that overweight mice had greater difficulty in remembering an exit from a maze than the mice belonging to a control group. The mice suffering from obesity faced this problem 3.5 times more often than the mice in the control group.

The study of the rodent brain showed that body tissues of the observed obese mice, including the hippocampus section of the brain that is responsible for the memory function, suffered deficiency in the protein PPAR-alpha protein. The researchers believe that the deterioration of memory is linked with the depletion of the PPAR-alpha protein.

The liver and the limbic system of the brain, otherwise called the hippocampus, use the same PPAR-alpha protein. The liver consumes the protein while burning fat in the abdomen. Yet the hippocampus  uses the PPAR-alpha while storing information. Hence, the liver burns a lot of fat as the protein reserves get depleted and the liver takes away the protein from other organs, including the brain.  The lack of this protein in the brain inhibits learning and memorizing.

In addition, scientists from Cambridge University have discovered that excess weight adversely affects memory.  Researchers have found a relationship between body weight and episodic memory.  Fifty people aged between 18 to 35 years of different weights took part in the experiment which involved passing the episodic memory tests.  The study indicated that the heavier the participants, the lower their scores in the test.  The researchers have thus determined that young people suffering from overweightedness or obesity have a weaker memory than their slender counterparts.

In summary, to have optimal memory, one should take care of themselves and control their weight.

Source:

http://www.tandfonline.com/doi/full/10.1080/17470218.2015.1099163

Hence, in order to have effective memory people should control their weight.

Svetlana Stroganova, Nikolai Shmelev

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