General, Research, Technology

Scientific explanation: how does sadness lead to dementia?

Sadness and longing at times overpower everyonehuman and this is completely normal. But, if a person is constantly in negative thoughts and worried about the most insignificant trifles, this is already a big problem. Recently, researchers from the University of London conducted a study and found that regular anxiety about the past and the future leads to the accumulation of harmful substances in the brain. Subsequently, this becomes the cause of dementia, or more precisely - Alzheimer's disease. You and I have known about the negative effects of bad thoughts for a long time, but this study is interesting because scientists told you exactly which substances accumulate in the brain and lead to dementia.

Sadness, anxiety, sadness and other negative experiences are bad for the brain

Interesting fact: in foreign scientific literature there is a special term for repetitive negative thoughts - repetitive negative thinking (RNT).

What affects brain function?

In the course of numerous studies, scientistsfound that with the development of Alzheimer's disease in the human brain, the level of two proteins increases: the tau protein and amyloid beta. Each of them worsens the mental abilities of a person and generally act the same:

  • tau squirrels formed in the cells of the central nervous system and clog the microtubules that are necessary for the proper functioning of the cells;
  • amyloid beta accumulate in the so-called amyloid plaques and also slow down the human mental processes.

According to a study whose results werepublished in the scientific journal Alzheimer’s and Dementia, with frequent negative thoughts, these substances begin to accumulate in the structures of the brain. Subsequently, they clog the microtubules, slow down thinking and eventually lead to dementia. It is not yet clear to scientists exactly how sadness, sadness and anxiety cause the body to produce these substances in large quantities. But the fact that their number is greater among people who are discouraged is greater, was proved during the experiment.

Reason for dementia

360 took part in a scientific studypeople over the age of 50. Over the course of two years, they regularly filled out a questionnaire on how they react to life's difficulties and how much they think positively about their past and future. Also, subjects often solved logical problems and passed tests for the presence of depression and the level of anxiety. Subsequently, the participants in the study measured the amount of tau protein and amyloid beta.

It turns out that in sad times, big changes occur in our brain

Dementia-leading substances in a largerwere found in people from whose profiles a strong predisposition to recurring negative experiences was revealed. They performed much worse with logic tests than those who indicated that they were thinking in a more positive way.

See also: Positive people work better

According to one of the authors of the study, FionaCarionher (Fiona Carragher) understanding that negative thoughts lead to dangerous ailments like Alzheimer's can save a lot of people. The fact that tau proteins and beta-amyloids provoke the occurrence of dementia, they knew for a long time. But the fact that these substances are actively produced in a pessimistic way of life is a new and important discovery.

A human brain with Alzheimer's disease (left) and a healthy human brain (right)

From now on, it turns out that to reduce the risk of developmentAlzheimer's disease can be adhered to a more optimistic outlook on life. According to researchers, this can be done with the help of meditation - regular intervals when a person forgets about the complexities of life and just concentrates on his breathing, undoubtedly, have a good effect on his emotional state.

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About what meditation is, Iwrote in early 2020. It is believed that during meditation a person should not think about anything. It is difficult for beginners to do this, because the emergence of thoughts in the head is a natural process and at the beginning of practice all people encounter this problem. This skill comes only with experience, so during the first sessions it is enough just to realize your existence. Scientists believe that you can learn to meditate very quickly - read more about this in the next article.