Practical. Neurologist and CNN correspondent Sanjay Gupta offers practical advice to general readers in his book titled, Keep Sharp: Build a Better Brain at Any Age. Gupta describes what scientists have learned about the brain and what their findings mean for maintaining one’s cognitive health. Spoiler alert: there’s no magic pill and yes, diet and exercise are recommended. Many readers will enjoy the way Gupta debunks long held myths about the brain. Readers of any age will gain some practical advice from this informative book. Rating: Four-star (I like it) Click here to purchase Keep Sharp from amazon.com.