If your doctor wrote out a prescription for your brain — one designed to guard against the kind of cognitive decline that makes you forget your best friend's name — it could look something like this: "Read books, play games, spend time on the computer, engage in social activities, take on a crafts project. Do a mix of these activities three to five days a week." Or so found a new study published in Neurology.
Researchers at Mayo Clinic asked 2,000 cognitively unimpaired adults who were 70 and older to try one or more of the activities above and keep a daily record. After five years, they discovered that while the risk of mild cognitive impairment (MCI) was reduced in those who took on a single activity, those who took on more than one cut their risk at a significantly higher rate.
"It's not just about engaging in an activity, it's about mixing it up with two or more,” says study co-author Yonas Geda, M.D., a professor of psychiatry and neurology at Mayo Clinic. “Two activities are better than one, three are better than two, and four are better than three.”
While researchers say the message is that, yes, more is more in this case, there were slight variations in results according to the activities pursued. Using a computer, for instance, was associated with a decreased risk of MCI regardless of when participants got in the habit. As for crafts, those only seemed to reduce the risk of MCI when carried out late in life. Overall, gains were the greatest after the first year of taking on such new habits and practices.