What actually happens in your brain when you take a 10-minute walk?
Every time you move your body, your brain releases a full flood of neurochemicals — dopamine, serotonin, noradrenaline, endorphins, and growth factors. According to neuroscientist Dr. Wendy Suzuki, a single 10-minute walk is enough to trigger this entire cascade. She calls it a "neurochemical bubble bath for your brain": the dopamine, serotonin, and noradrenaline lift your mood almost immediately, while growth factors travel to the hippocampus and stimulate the growth of brand new brain cells.
This insight came up in an episode of The Mel Robbins Podcast dedicated to five science-backed tools for shifting your mood fast. Robbins had asked her Instagram audience what they needed help with — more than 500,000 people responded — and the overwhelming feeling across those responses was anxiety, mental fatigue, and a sense of being stuck. Suzuki's research on movement and brain chemistry was one of the direct answers to that collective ask.
The key takeaway is the threshold: you do not need to run a marathon or commit to a lengthy workout. The neurochemical response Suzuki describes kicks in with even brief, low-intensity movement. Ten minutes of walking is a sufficient dose.
The hippocampus is the region of the brain central to memory formation and learning. In Suzuki's research, it is the destination where growth factors released during exercise travel — stimulating the creation of new brain cells, a process known as neurogenesis.
"Every single time you move your body, you are releasing literally a flood of neurochemicals in your brain. I'm not talking about run a marathon. I'm talking about even taking a walk, a 10-minute walk gets that flood of neurochemicals going."
— Wendy Suzuki, Neuroscientist, New York UniversityAbout Wendy Suzuki
Dr. Wendy Suzuki is a world-renowned neuroscientist and the Dean of the College of Arts and Science at New York University — one of the leading research universities in the United States. Her academic position places her at the intersection of scientific inquiry and institutional leadership, giving her both the research credentials and the platform to translate complex brain science into practical, accessible guidance.
Her research career has focused on memory and brain plasticity: how the brain changes, adapts, and grows in response to experience and behavior. This work underpins everything she says about exercise and neurochemistry — it is not motivational rhetoric, it is the direct output of laboratory research into how movement affects brain structure and function.
Suzuki is also a pioneer in studying the relationship between physical movement and brain health. Her work explores how everyday actions — including something as simple as a short walk — can measurably influence focus, learning, memory, and long-term cognitive resilience. It is this body of research that positions her as one of the most credible scientific voices on why and how movement improves mood and brain performance.