God illustrates some of His surprising truths through the workings of the amazing human body. And it's God's truths that steady our wavering faith when life's trials and heartaches shake us to the core of our being. The book targets men and women from all walks of life who are going through -- or living in -- tough times: illness, grief, financial crisis, physical limitations, or other difficulties. Combining interesting body facts with related Bible facts, the devotionals in Shaken to the Core weave body and soul together in several ways, drawing readers closer to their Creator, the Source of all strength and comfort, and helping build core spiritual endurance as well as physical core muscle.