SAVING FOR A RAINY DAY is an important way to cope with financial problems. You can tap into the extra cash when you lose a job or suddenly have to shell out money to fix your car. So wouldn’t it be great if you could apply a rainy-day savings plan to your brain and have a healthy reserve that kicks in when neurons go south due to old age or dementia?
Scientists believe it may be possible. The concept is called cognitive reserve. “It’s an active coping process that’s built up over a lifetime. What you do in life can c