I am surprised no one has mentioned Paul Bloom's "Sweet Spot". He looks at the psychology behind chosen pain / suffering / struggle (e.g. running a marathon ) h

I am surprised no one has mentioned Paul Bloom's "Sweet Spot". He looks at the psychology behind chosen pain / suffering / struggle (e.g. running a marathon ) https://www.goodreads.com/en/book/show/56922622-the-sweet-spot https://www.goodreads.com/en/book/show/56922622-the-sweet-sp...