Reading keeps your brain young.Digging into a good book can literally take years off your mind, according to a recent study from Rush University Medical Center. Adults who spend their free time doing creative activities (like reading) have a 32 percent slower rate of cognitive (认知的) decline later in life than those who do not. “Brainy pursuits make the brain more efficient by changing its structure to continue functioning properly,” said Robert S.Wilson, a professor at Rush University Medical Center. Another recent study found that older adults who regularly read are two and a half times less likely to develop mental diseases.