The study, which was conducted by researchers from the University of Chicago, involved about 3,000 adults between the ages of 57-85.
Daraasadan ayaa qaadatay muddo dheer oo ay qaadeen cilmi baarayaal ka socda Jaamacada Chicago, ayaa lagu tijaabiyey 3,000 oo qof oo da'doodu u dhaxayso 57 ilaa 85 sano.