Notes:

"Busy working on your computer? Spending hours searching the internet? Get active with Move It, the easiest way to be reminded that you should integrate a break into your work online. Simply add the Move It extension to your browser, set the notification interval, and your screen will present you with a random brain break and exercise to complete. Once you complete it, hit done and the next will arrive after the designated interval elapses again.." - Chrome Web Store

extension link: https://chrome.google.com/webstore/detail/move-it/kopilngnmfklhhjocdfdlokmodibcbmk