Apart from reading with no interruptions, you should take breaks and just daydream: http://www.bbc.com/future/story/20180208-an-effortless-way-to-strengthen-yo

Apart from reading with no interruptions, you should take breaks and just daydream: http://www.bbc.com/future/story/20180208-an-effortless-way-to-strengthen-your-memory http://www.bbc.com/future/story/20180208-an-effortless-way-t...