A new study was published in the journal Neurology and it is based on the effect that stress hormone has on people brain. The study reports lost in memory and small brain volume in people with a high level of stress homone.
Cortisol steroid hormone produced in humans by the zona fasciculata of and it is released response to stress and low blood-glucose concentration.
Scientist made more studies based on cortisol and its effects but this is the first time they find out it influences the brain`s part where the memory is. On short, the support system of the cells is getting lost which is not a good sign.
The study was led by Sudha Seshadri, professor of neurology at the University of Texas Health Science Center at San Antonio and senior author on the study and Justin Echouffo-Tcheugui, an assistant professor at Johns Hopkins University. They made researches on over 2,000 healthy people`s whole brain. The cortisol levels were measured by collecting blood samples and the team also tested people memory, concentration and reasoning. They were looking in differences in the brain volumes so they were able to divide the participants into three groups. One with the lowest cortisol levels, one medium and the last group with high to normal levels.
The results of the study proof that women were the ones with the highest level of cortisol and have a bad memory and attention. But still there are people who do not believe that stress is the one causing the brain issues since cortisol is also used by the body to calm down inflammation.
Sudha SeshadrI agrees that there is a chance that the cortisol is aiming the changes in brain volume.
“Yes, it is possible; there could be a number of factors like that,”
Bruce McEwen, neuroscientist at The Rockefeller University in New York who was not involved in the researchers hopes that the team will continue to investigate why some people have a higher level of cortisol than others since it is a deep subject.
‘Cortisol is tip of the iceberg. There’s a lot going on underneath.’