The studies support earlier work that found such journeys could significantly damage the brains of astronauts, and age them prematurely.
ðə stˈʌdiz səpˈoːɹt ˈɜːlɪɚ wˈɜːk ðæt fˈaʊnd sˈʌtʃ dʒˈɜːniz kʊd sɪɡnˈɪfɪkəntli dˈæmɪdʒ ðə bɹˈeɪnz ʌv ˈæstɹənˌɔːts, ænd ˈeɪdʒ ðˌɛm pɹɪmətʃˈʊɹli.