Stress causes negative changes in brain function, affecting the formation of neural connections in the the structure of this important body. Thus, there is brain aging - He too quickly loses its ability to good memorization and shows signs of cognitive impairment.
The authors of the study, showed how dangerous it can be stress for the human brain, were scientists from the University of Iowa. They found that age-related changes in brain, in principle, almost any natural person as aging - activated under stress. Simply put, because of stress head brain aging faster than I could.
Scientists conducted an experiment in which experts are involved laboratory rats. Animals were divided into two groups: one located in rodents with high levels of the stress hormone corticosterone in the other - low. During the experiments, the rats had to perform a simple task on the memory associated with the search for food in the maze. Researchers They found that animals with higher levels of corticosterone did more Error when trying to predict them the right location, with less than rats the amount of the stress hormone. Study of their brain showed that animals dwells in stress differed far fewer neural connections in the prefrontal cortex - the most developed part of the brain responsible for "executive function ", in particular, for the thinking and actions of control.
The action of stress on the brain were checked for old and young individuals. This test demonstrated that the young brain is better protected from the effects of stress hormones, but at least past years, such protection is much weaker. Similar processes, consider scientists happen with people.
The authors of the study, showed how dangerous it can be stress for the human brain, were scientists from the University of Iowa. They found that age-related changes in brain, in principle, almost any natural person as aging - activated under stress. Simply put, because of stress head brain aging faster than I could.
Scientists conducted an experiment in which experts are involved laboratory rats. Animals were divided into two groups: one located in rodents with high levels of the stress hormone corticosterone in the other - low. During the experiments, the rats had to perform a simple task on the memory associated with the search for food in the maze. Researchers They found that animals with higher levels of corticosterone did more Error when trying to predict them the right location, with less than rats the amount of the stress hormone. Study of their brain showed that animals dwells in stress differed far fewer neural connections in the prefrontal cortex - the most developed part of the brain responsible for "executive function ", in particular, for the thinking and actions of control.
The action of stress on the brain were checked for old and young individuals. This test demonstrated that the young brain is better protected from the effects of stress hormones, but at least past years, such protection is much weaker. Similar processes, consider scientists happen with people.
"With age, the stress becomes much more dangerous for the human brain than in his younger years, "- said the curator research professor Jason George. Radley.
According to the expert, this study has shown, that the consequences of the negative impact of stress hormones on the brain may be more extensive than previously thought. (READ MORE) Industry News
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