Le stress, grand ennemi de notre cerveau
Des chercheurs ont démontré qu’à partir de 40 ans, le stress chronique peut être néfaste pour les capacités intellectuelles. Cette nouvelle étude, réalisée par Harvard Medical School auprès de 2 231 personnes âgées entre 40 et 50 ans, a été publiée dans la revue Neurology. Résultats : des taux plus élevés de cortisol – hormone du stress – sont associés à un volume cérébral plus faible, ainsi qu’à une mémoire et des fonctions cognitives moins bonnes. Ainsi, le stress chroni
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