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Il cioccolato ha il potere di rallentare il processo di perdita della memoria nelle persone anziane. Lo sostiene uno studio della Columbia University.
"I flavonoli, gli antiossidanti contenuti nei chicchi di cacao, possono far tornare la memoria di una persona di 60 anni a quella di un trentenne o di un quarantenne", spiegano gli scienziati.
La ricerca, pubblicata sulla rivista Nature Neuroscience, ha coinvolto 37 volontari di età comprese tra i 50 e i 69 anni. I partecipanti sono stati divisi in due gruppi: il primo è stato invitato a bere ogni giorno una bevanda ad alto contenuto di flavonoli, mentre i volontari dell'altro gruppo ne hanno presa solo una piccola dose ogni giorno. Il periodo di osservazione è durato tre mesi: l'esperimento ha messo in evidenza che coloro che avevano assunto più cioccolato facevano dei collegamenti mentali più facilmente e più velocemente rispetto agli altri.
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