US scientists have found that chronic stress leads to long-term changes in the brain. Perhaps this explains the reason for the tendency to mental problems in people suffering from constant stress..
Experiments conducted on rodents have shown that chronic stress increases the growth of myelin-producing cells and reduces the number of neurons.. What leads to an overabundance of myelin in the brain, this is an imbalance.
Stress has also been found to cause stem cells to turn into a different type of cell that produces myelin, the sheath of nerve fibers..
As Rossiyskaya Gazeta writes, a decrease in the number of stem cells due to stress may explain its effect on learning and memory..
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