Вам помочь с гугл переводчиком?Their findings might explain why young people who are exposed to chronic stress early in life are prone to mental problems such as anxiety and mood disorders later in life, as well as learning difficulties.It has long been established that stress-related illnesses, such as post-traumatic stress disorder (PTSD) trigger changes in brain structure, including differences in the volume of gray matter versus white matter, as well as the and size and connectivity of the amygdala. However, researchers are just beginning to understand exactly how chronic stress creates long-lasting changes in brain structure which affect how the brain functions.In a series of revolutionary experiments, Daniela Kaufer, UC Berkeley associate professor of integrative biology, and her colleagues, discovered that chronic stress and elevated levels of cortisol can generate more overproduction of myelin-producing cells and fewer neurons than normal.