http://www.npr.org/sections/deceptivecadence/2017/03/06/518777865/the-most-practical-tips-for-practicing-according-to-science?utm_term=music&utm_content=buffer54e22&utm_medium=social&utm_source=facebook.com&utm_campaign=buffer

The presentation is actually about physical practice, but I see a lot of overlap with Sage suggestions and also just common sense. Don't expect to learn anything here that will remarkably alter your habits (unless you have awful habits lol), but let it serve as a reminder that quality practice is more important than quantity.