Research has found that middle-aged individuals in their forties and fifties with elevated cortisol levels, a hormone associated with stress, perform worse on cognitive and memory tasks compared to individuals of the same age who have average levels of cortisol. Elevated blood cortisol levels were also linked to smaller brain volumes.
One factor that’s getting considerable interest in the search for understanding cognitive aging is the growing stress of modern day life. It’s already known that stress in animals can contribute to cognitive decline.
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