I'd say that it's friendly enough. The appendices provide short primers on neuroscience, hormones, and proteins, and help make sense of the rest of the book.

I'd say that it's friendly enough. The appendices provide short primers on neuroscience, hormones, and proteins, and help make sense of the rest of the book. I'm about 1/3 of the way through and every day I have something new that I'm excited to tell my wife about.