In Busy Minds: The War Within, Dr. Stephen R. Phinney weaves together decades of neuroscience research and deep biblical insight to expose the hidden battlefield of the human mind. After receiving a life‑altering diagnosis of Chronic Inflammatory Demyelinating Polyneuropathy (CIDP), Dr. Phinney embarked on an intensive study of the brain’s neurological systems to understand how thought patterns, emotional triggers, and spiritual warfare shape the believer’s daily experience. With clarity and compassion, he guides readers through the science of neural function and the truth of the Mind of Christ, offering practical pathways for renewing thinking, strengthening resilience, and reclaiming inner peace. This expanded edition equips believers to see their minds not as enemies to fear, but as territories to be redeemed, empowered, and aligned with the life of Yeshua.