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

Greendoor doesn’t place people in jobs — but we do help them function better within the ones they already have. Whether you’re returning to work after burnout, managing executive dysfunction, or simply trying to stay sharp in high-pressure environments, we offer support for the mental side of performance. This is cognitive support — not employment…

At Greendoor, we make sense of nootropics — without the hype, misinformation, or false promises. We explore the science, ethics, and everyday realities of cognitive enhancement in a world where mental performance is often a prerequisite for success. Whether you’re curious, cautious, or already experimenting, we give you the tools to think clearly about thinking…

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…

Greendoor stands for more than cognitive enhancement — it’s a mindset. A willingness to ask better questions, explore smarter solutions, and challenge how we think about mental performance in a demanding world. We’re not a clinic. We’re not a supplement brand.We’re a platform built by people who’ve been there — battling brain fog, losing focus,…