Start now and make it sustainable

The most important thing for improving cognitive health is to start now. Just like investing in your financial future, starting early is key. Even if you haven't started yet, it's never too late to begin. The next crucial element is making it sustainable. Find an exercise routine that you genuinely enjoy, as this will increase the likelihood of sticking with it for the long term. It's important to remember that it's not just about the short-term benefits, but also about creating a lifestyle that promotes brain health over time.