I bimbi nati oltre lo scadere delle 40 settimane di gravidanza hanno meno difficoltà di apprendimento, ma sono più deboli dal punto di vista fisico. Lo dice una ricerca statunitense, pubblicata su Jama Pediatrics.
Lo studio si è concentrato su un campione di 1,4 milioni di neonati nati in Florida fra la 37esima e la 41esima settimana. I secondi, una volta cresciuti, hanno ottenuto punteggi più alti in test scolastici di lettura e di matematica rispetto ai primi, forse perché il cervello ha avuto più tempo di svilupparsi nel grembo materno. Allo stesso tempo però al momento della nascita hanno sviluppato condizioni di salute anomale, come per esempio malattie alle vie respiratorie.
ANSA/AlesS
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