If COVID-19 has you stuck in quarantine and you’ve binge-watched enough TV and movies to last you for months, you might try a new way to stimulate your brain. As PC Mike Wendland reports, a number of brain-training apps are available to help you do just that. Peak is an app that offers 40 unique games, each one developed by neuroscientists and game experts to challenge your cognitive skills and push you further. It’s like a personal trainer for your brain with various workouts to get your brain in shape. The app is free for iOS and Android with premium features available for purchase. Elevate claims to improve focus, speaking…