More and more studies seem to be coming out that all conclude that keeping your mind active can be helpful to all sorts of health issues. Speaking more than one language and certainly help and so can just keeping your mind intellectually stimulated through various tasks:
Examples of activities the researchers considered cognitively stimulating (if performed at least three times per week) included reading books and magazines, playing games and music, and participating in arts and crafts.
All participants then underwent a battery of neuropsychological tests designed to measure a variety of cognitive skills, including executive functioning, language, and memory.
“Higher levels of educational, occupational, and cognitive activity are independently associated with a lower risk of dementia,” they report. Among people with the APOE4 variant, who are at relatively high risk for dementia, the difference is huge: The onset of cognitive impairment was delayed, on average, by more than eight and one-half years for people who ranked in the top 25 percent in terms of lifetime intellectual enrichment, compared to those in the bottom 25 percent.