Dr. Earl Henslin’s book, This Is Your Brain on Joy, was a surprisingly good read. I must admit, when I got this book, I expected it to be a bunch of bad psychobabble. I also expected Henslin to minimize the reality of sin. I was surprised because he did not overload me with psychobabble and psychiatric analysis or minimize sin. He admitted multiple times that sin causes mental and emotional problems that need to be dealt with first. He also is not quick to say people need medicine. Henslin argues for many different things to help with mental issues, and suggests homeopathic solutions before medicinal ones. He also helps the average reader to understand how different parts of the brain work and different issues that come up with it. His heart is that people have joy in all circumstances, which is biblical. He has a chapter about the biblical basis for joy, which shows he is not an exegete, but is not bad. I rather enjoyed the book and learned more about brain health and different things I can do to help my brain function optimally, which should help in my studying, work, and even in my pursuit of biblical joy.