I’ve Scanned 200,000+ Brains... Weed Kills Blood Flow 5x Faster Than Alcohol

Dr. Stephen Storridge, a psychiatrist with access to nearly 300,000 brain scans, reveals a startling truth: cannabis reduces blood flow to the brain five times faster than alcohol or nicotine—making it the most damaging substance for brain health in terms of vascular impact. This finding shatters the common perception that cannabis is 'natural' and safe, especially when compared to alcohol. Drawing on neuroimaging data, Storridge argues that ADHD is not a disorder but a mismatch between wiring and environment, with seven distinct subtypes that respond differently to treatment—rendering one-size-fits-all diagnoses and medications dangerously outdated. He emphasizes that brain health is not fixed: through sleep, nutrition, exercise, and dopamine reset protocols, the brain can rewire itself. The episode dismantles myths around ADHD, addiction, and substance use, revealing that the real enemy isn't just one drug—but the dopamine-driven cycle of overstimulation that modern life enables. Most powerfully, Storridge asserts that brains are malleable, not fixed, offering a radical message of hope: you are not stuck with the brain you have.