Nine months after the birth of my first daughter, I felt off. Flatness, forgetfulness, cold, and tired. If I hadn’t discovered my formal diagnosis of an autoimmune thyroid condition, I could easily have been offered an antidepressant. Instead, I delved into the complex physiology of the immune system and its relationship to seemingly unrelated areas like the gut and brain. I learned pathways and the role of nutrients in their optimization. I changed my lifestyle, and my life changed as a result.