The 5-Day Brain Health ChallengeThis series will teach you how to keep your mind sharp and resilient for years to come.
Day 4: Try a true brain teaserWelcome to Day 4 of the 5-Day Brain Health Challenge. Today, we’re going to do a short and fun activity based around a concept called cognitive reserve. Decades of research show that people who have more years of education, more cognitively demanding jobs or more mentally stimulating hobbies all tend to have a reduced risk of cognitive impairment as they get older. Experts think this is partly thanks to cognitive reserve: Basically, the more brain power you’ve built up over the years, the more you can stand to lose before you experience impairment. Researchers still don’t agree on how to measure cognitive reserve, but one theory is that better connections between different brain regions corresponds with more cognitive reserve. To build up these connections, you need to stimulate your brain, said Dr. Joel Salinas, a neurologist at NYU Langone Health and the founder and chief medical officer of the telehealth platform Isaac Health. To do that, try an activity that is “challenging enough that it requires some effort but not so challenging that you don’t want to do it anymore,” he said. Speaking a second language has been shown to be good for cognition, as has playing a musical instrument, visiting a museum and doing handicrafts like knitting or quilting. Reading is considered a mentally stimulating hobby, and experts say you’ll get an even bigger benefit if you join a book club to make it social. Listen to a podcast to learn something new, or, better yet, attend a lecture in person at a local college or community center, said Dr. Zaldy Tan, the director of the Memory and Healthy Aging Program at Cedars-Sinai. That adds a social component, plus the extra challenge of having to navigate your way there, he said. A few studies have found that playing board games like chess can be good for your brain; the same goes for doing crossword puzzles. It’s possible that other types of puzzles, like those you find in brain teaser books or from New York Times Games, can also offer a cognitive benefit. But there’s a catch: To get the best brain workout, the activity should not only be challenging but also new. If you do “Wordle every day, it’s like well, then you’re very, very good at Wordle, and the Wordle part of your brain has grown to be fantastic,” said Dr. Linda Selwa, a clinical professor of neurology at the University of Michigan Medical School. “But the rest of your mind might still need work.” So play a game you’re not used to playing, Dr. Selwa said. “The novelty seems to be what’s driving brain remodeling and growth.” Today, we want you to push yourself out of your cognitive comfort zone. Check out an online lecture or visit a museum with your challenge partner. Or try your hand at a new game. Click here to get started, and I’ll see you tomorrow for the final day of the challenge.
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