Why Sitting All Day Can Hurt Your Brain
In this concise monologue, Dr. David Perlmutter warns that prolonged sitting—sedentary behavior—is a direct threat to brain health. He explains that active muscles release neuroprotective chemicals such as brain‑derived neurotrophic factor (BDNF), interleukin‑6, irisin, and cathepsin, which travel to the brain and support cognition. Because many people spend hours at a computer, he urges frequent standing breaks and recommends practical interventions like standing treadmills or height‑adjustable desks. He also stresses that effective brain‑protective exercise must be varied: combine aerobic activity with resistance/strength training and include regular stretching to prevent injury, which would otherwise interrupt the exercise routine. The overall message is a call to integrate movement throughout the day to safeguard the brain.
