Russell Greenfield, M.D
The Doctor Who Prescribes Friendship
Dr. Russell Greenfield, an integrative medicine physician, has spent his career helping people thrive by bridging the gap between traditional medicine and holistic well-being. Trained at the University of Arizona’s Center for Integrative Medicine, Dr. Greenfield believes that the key to living a healthier, longer, and more fulfilling life isn’t just diet or exercise—it’s meaningful relationships.
“Friendship isn’t just good for the soul; it’s good for the body,” says Dr. Greenfield, whose research-backed insights bring scientific weight to the transformative power of connection. Whether he’s consulting with leaders or caring for patients, Russ focuses on how friendships create resilience, lower stress, and promote mental health.
With a gift for blending science with heart, Russ is the go-to expert on how cultivating connection can improve well-being at every level. On Friendship Matters, he reveals how even small shifts in your relationships can create profound changes in your life.

Loneliness is not just personal. It is a public health crisis and an invisible cost to workplace performance. The antidote is not more scrolling or surface-level interactions. It is deeper, intentional friendships that renew health, extend life, and transform how we live and lead. In fact, research shows that strong, supportive friendships can have a greater impact on your health than quitting smoking or losing weight.
That’s how vital connection really is.
Russell Greenfield, M.D., co-founder of the Friendship Institute