How will your brain affect your brain? [Ciencia] – 11/25/2018


London.- Note, generation X people and millions. If there is a lot of psychology in the & # 39; life, could result in the loss and memory of the brain that could return 50, according to a survey published on Wednesday, October 24 in the Gazette Neurology.

"It seems that there are high levels of cortisol, hormone striving, predicting brain work, brain size and exercise of mental exams," said Sudha Seshadri, author and olympic Neurology at the University Science Center. Health at the University of Texas at San Antonio.

"We found that there could be an awareness of the loss and the decline of the brain in young people, long before signals could be aware," said Sesadri.

Too much fight or escape & # 39;

Cortisol is one of the main illness hormonals, most famous for getting into the "fight or trip" style. When we put pressure or the warning, the adrenal muscles will go to the next. make more tax. The hormone then causes the expression of a range of corporate appointments that can prevent the survival.

Once the emergency is going to be & # 39; passing, the cutting levels should go down and the corporate systems should return normally. But if its & # 39; button Concerning, the body can continue to disrupt, cause anxiety, dementia, heart disease, headaches, stress on stress, sleeping problems and, in fact, memory problems and focus.

According to experts, the brain is particularly vulnerable due to the nutrition it needs to work properly.

"The brain is organs horrible," said Keith Fargo, director of scientific programs and the connection of the Alzheimer's Society. "It requires a lot of nutrition and oxygen to continue to work properly, and so when its body needs these resources to deal with weight, there is less to put into the brain. "

The intense responsibility is memory-related

In previous studies, relationships between cortisol and the risk of dementia were detected; However, surveys have been targeting older people and the area of ​​the brain that remembers their; live, called the hippocampus.

The benefits of the new survey, according to Seshadri, include a group of men and 48-year-olds surveyed on average and MRIs were made throughout the brain, not just the hippocampus.

Researchers selected more than 2,000 people who did not show dementia signs and organized a number of psychological exams to evaluate their mental abilities.

They were all part of the Framingham Heart Survey, a long-term study that was supported by the National Institute for Heart, Pulm and Fala of the United States. The study examined the health of residents of Framingham, Massachusetts – and their children – from 1948.

A group was re-estimated about eight years after the original tests. Blood cuttings were measured before the restaurant. Then magnetic revival was made and the memories and experiments were repeated again.

After changing the data by age, sex, body and smoking, it was determined that the highest calibration of the highest levels of cortisol was the highest memory loss.

"I was not surprised by the change in knowledge," said Fargo, who was not involved in the study. "If you have a higher coupling, you may be in need of stress and you are likely to have more problems in mental exams."

Also stress also affects the structure of the brain

Fargo noted that it was astonished what was discovered about the effects of cortisol on the brain structure.

High levels of cortisol were associated with greater damage to the sections of the brain that move through the orghan (large crown) and between the conceptions (corpus callosum).

In addition, the study revealed that a part of the brain depended on thinking, feelings, speech activities and fewer fewer people had higher levels of surgery.

The average brain measurement of people with high levels of cortisol was 88.5% of total brain conversion, compared to 88.7% of people with normal cortisol levels.

"I was surprised to see such a change in the brain structure with an increase in incidence levels compared to the middle level of bones," said Fargo. "If you notice changes in a structural brain in the middle of age, you can think what happens before you are old enough to develop dementia."

Interestingly, the effects of high-intensity wheel chances are only brain measurement in women, not men.

"Estrogen can be a cortisol," said Richard Isaacson, a medical director of Alzheimer's Prevention Clinic at the Weill Cornell University Medical School in the United States. "About 40% of women in the senior cortisol group were in the study of a hormone revival cure." Isaacson did not participate in the study.

Seshadri commented that changes have been made in the study that has taken into account the treatment of hormone renewal. "It does not completely eliminate the adverse effects of the hormone renewal," he said, "but this story is less likely to be."

Seshadri also stressed that the results of the survey do not; shows relationships but not a reason, and more research is required to verify the link between high proportion rates and dementia. It suggests that, although that happens, people should think about how to do it; making changes to their way of life to face today's stress.

Fargo agrees. "We know, for example, that people who use a dementia life have a lower risk," he said. "Give some time to yourself, make ideas, there are always ways to keep stress that will have a positive impact on you."

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