Dr. Amy Killen has built her career on challenging the limits of traditional medicine and opening new doors in the field of regenerative health. After more than a decade as an ER physician, she began to feel the limits of a system that was focused on treating emergencies rather than preventing them. As she put it, working in emergency medicine often meant “just putting band-aids on things all day.”
Today, as Chief Medical Officer of Humanaut Health, she is helping to redefine how we think about longevity, hormones, and sexual health. Her story is one of burnout transformed into vision, and of using science to empower people to take charge of their well-being.
From Burnout to a New Path
For Amy, the shift away from the ER was personal as much as professional. After having three children in two years while working exhausting hospital shifts, she found herself depleted. “I realized that if I didn’t make some big changes in my life, I was gonna be one of those people with a chronic medical problem,” she said.
That realization pushed her toward integrative and regenerative medicine. Over the past decade, she has built practices that focus not just on treating illness but on preventing it, while also helping people optimize their health.
Building Humanaut Health
Amy co-founded Humanaut Health with a vision of accessibility. “We wanted to create something that was available to all tiers of budget,” she explained. “With good medical practices and options for people who don’t want to pay as much money as well as for people who really want that kind of luxury experience.”
By combining advanced diagnostics with personalized coaching, Humanaut Health was designed to make proactive care available to more people, bridging the gap between wellness and medicine.
Sexual Health and Breaking Stigmas
One of Amy’s passions is bringing sexual health into the broader wellness conversation. “It’s crazy. I mean, it’s like 50% of men over the age of 50 have some degree of erectile dysfunction, like ongoing erectile dysfunction, and 40% of women of all ages have some form of sexual dysfunction,” she said.
She is candid about the stigma that keeps many from seeking help. In her practice, she considers the whole picture — mental and emotional health, cardiovascular health, hormone balance, and structural support — to help patients improve both function and confidence.
Hormones and Longevity
Amy is equally committed to educating women about hormone health. “All women will lose estrogen and progesterone,” she explained. “In an ideal world, would I be able to offer hormones to all women? Absolutely.”
She is clear that hormone therapy is not only about quality of life but about long-term health. “Estrogen is one of the best tools we have for women in preventing cardiac disease, which is the number one killer of women,” she said. “Research shows that when estrogen is started within 10 years of menopause, it can cut the risk of cardiovascular disease significantly.”
Her advice for women is simple but powerful: test baseline levels early, understand the options, and work with trusted providers to make informed choices.
Looking Ahead
What makes Amy’s work stand out is her ability to combine medical expertise with candor and encouragement. She is unafraid to challenge stigma, reminding patients and audiences alike of the importance of open conversations around health. At the same time, her story reflects resilience and reinvention — the choice to step away from burnout and create a career that inspires others to take ownership of their well-being.
Through Humanaut Health, her medical practice, and her role as an educator, Amy is reshaping how people think about longevity and vitality. Her journey is a reminder that health is not only about extending years of life, but about living those years with confidence, strength, and purpose.
