Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A weighty subject

The National Institutes of Health say that there is a virtual epidemic of obesity occurring not only in the US, but in almost every advanced country--except, curiously enough--France. Fifty percent of adults over 40 are overweight, and our children aren't much better off.As a result of reading this book, I think I've found the cause, since I believe I have this problem with at least a couple of my more "aesthetically challenged" body parts. But getting back to the present volume, this book seems to be on a timely and weighty topic that seems to be weighing equally heavily on the behinds and minds of both the general public and our health officials.