Why the homeless man who graduated from Harvard is still on the streets

On July 13, 2015 Washington Post writer, Terrence McCoy, wrote the first of two stories about Alfred Postell. Postell was a Harvard Law student that would eventually become schizophrenic and ultimately homeless. “That few remember what happened to Postell perhaps betrays the illness that seized him. Schizophrenia creeps. Some people, especially those as accomplished as Postell,…

At Greendoor, we talk a lot about nootropics, brain health, and mental performance — but none of that exists in a vacuum. You can’t optimize cognition if your basic needs aren’t met. Housing isn’t just a social issue. It’s a cognitive one. People experiencing housing insecurity or chronic homelessness often live with elevated stress, disrupted…

We’re living in an age of constant distraction, mounting pressure, and mental overload. The demand for peak performance — in school, at work, in life — has never been higher. And more people than ever are turning to cognitive enhancers to keep up. At Greendoor, we believe that this moment demands more than hustle. It…

Mission To empower individuals with clear, evidence-based knowledge about nootropics — enabling smarter, safer, and more informed cognitive enhancement decisions. We aim to bridge the gap between scientific research, ethical reflection, and real-world use in a world where mental performance matters more than ever. Vision We envision a future where cognitive enhancement is accessible, ethical,…