Instruct: Classify Amazon reviews into positive or negative sentiment
Query: How to make your brain die

The first half of the book discusses how 'exercising' your brain keeps it healthy. This section is mind numbingly boring. It glosses over the science so you will learn nothing new and merely repeats the concept that exercising your brain keeps it fit, over and over and over. The second half deals with the actual mental exercises or `neurobics'. There is nothing new or exciting and it is repetitive to the point where your brain is begging to be released from the mental torture. Let me break it down for you in a few of sentences so you can save yourself ten bucks. Use your less dominant hand to do things. Use your senses in ways they are not accustomed. For example, try to perform a task by feel that you normally do by sight. Finally, have new experiences. Here is an actual moronic example from the book: instead of a bagel and coffee in the morning, try a muffin and herbal tea. Your brain will be much healthier if you do anything other than read this book.