As the title says, this books discusses the research of what happens in the brain when we experience different feelings (or runs amuck in depression or addiction) and what we can do to increase the positive feelings. I was surprised by a chapter discussing societal factors.

It does not read like a translation, there are references to lots of American locations and icons. While I knew much of the advice (such as the good effects of exercise), I learned a good bit (such as income equality brings greater happiness). The book also refutes some 'common sense' adages. All in all, an enjoyable read that I found very interesting.