Much of the content of that article is talked about in depth in Why We Sleep[1] (and much more) [1] - https://www.goodreads.com/book/show/34466963-why-we-sleep

Much of the content of that article is talked about in depth in Why We Sleep[1] (and much more) [1] - https://www.goodreads.com/book/show/34466963-why-we-sleep https://www.goodreads.com/book/show/34466963-why-we-sleep