Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your money!!

Here's the short version: Exercise 6 days a week, join a gym, hire a trainer. End of book! I was expecting various exercise plans, healthy eating suggestions, other ideas of things to do such as mental exercises, journaling, playing games, etc...things that have shown to be good for helping your brain stay alert as well as your body. Unfortunately, these guys wrote almost 400 pages of redundant, regurgitated babble over and over, ad nausium! The 71 yr. old guy skis...he said that in every other chapter. That's it. So save your money. Spend it on a good trainer.