I have mixed feelings about this. On one hand, it had gory but scientific explanations of the puzzles behind figuring out how people died. So, that was cool. I always like books about forensics.
On the other hand, no one is going to get any news about what kills you, not unless you've been living under a rock for the past twenty years. Smoking kills you? Really? Seat belts save lives? And in related news, water is wet!
Also, some of the advice came off as moralistic and low on facts. For example, she admits that Marijuana is not going to kill you, and then says "it's going to make you lose memory, etc, so just don't do it." She also rehashed the tired old "obesity is unhealthy, so lose weight to <24 bmi or you will die a horrible, horrible death." I really don't want to hear that garbage, especially not with how inaccurate the bmi thing is, and how poor the correlation between mild "obesity" and mortality, and the well-established but oft-ignored fact that your odds of losing weight and keeping it off are something like 9 to 1. Telling us that "since fat people die sooner, you should get skinny" is like saying, "tall people make more money and get more respect, so try your best to be tall."
I would have liked it best if she had stuck with the cool stories of figuring out how dead people got that way than preaching stuff we read about in the magazines twenty years ago.