Her research established that loneliness carries health risks equivalent to smoking fifteen cigarettes a day. Now Dr. Julianne Holt-Lunstad — one of the world's leading scientists on social connection — joins Erin to explore how the built environment shapes our social lives, and why fighting loneliness requires looking beyond the personal to the places we inhabit.

The pandemic forced a question designers had been avoiding: how do you create conditions for genuine human connection when proximity itself feels dangerous? Patricia Gruits of MASS Design joins Erin to explore the surprising overlap between designing for infection control and designing for social health — with a special focus on what senior living spaces get right and wrong about belonging.

We evolved in spaces sized to the human body — spaces where we could see across a room, hear a conversation, sense the presence of others without being overwhelmed. When architecture forgets human scale, the body notices. In this episode, Erin explores how designing at human scale creates the conditions for comfort, safety, and social connection — with a real-world example from UC San Diego.

Loneliness isn't just an emotional experience. It's a physiological one — with measurable effects on sleep, immunity, cognitive function, and lifespan. This episode lays out the surprising science of what chronic disconnection does to the human body, and why addressing loneliness requires looking beyond individual effort to the environments we move through every day.