
20-Minute Walks: A Simple Daily Habit for Brain Health and Mood
Heart surgeon Dr. Jeremy London touts 20 minutes of brisk walking as a powerful, low-effort boost for both short‑term mood and long‑term brain health—lowering cortisol within 1–2 hours, reducing rumination, and improving circadian rhythm, with longer-term benefits including lower depression and anxiety risk and upregulation of brain-supporting factors like BDNF and IGF‑1. He emphasizes that you don’t need to be an athlete; small daily steps from zero to something can yield meaningful gains, though walking isn’t a substitute for professional care when needed.













