Michal Cohen-Sagi of Vidavii on Making Longevity Personal, Practical and Accessible

Long before longevity became a mainstream conversation, Michal Cohen-Sagi was already thinking about how early choices shape a long, independent life. At twelve, she watched her father lose his eyesight to diabetes, an experience that taught her how deeply health can affect freedom. Her own journey through endometriosis and menopause reinforced that belief, and it has guided a career spanning technology at Microsoft and more than fifteen years in wellbeing.

Today, Michal is the co-founder and Longevity Architect of Vidavii, a London-based brain, body and mind longevity ecosystem built with her partner Noam Sagi, a body-centred psychotherapist. At its heart is the Vidavii circuit, a guided experience that brings together cold exposure, compression, infrared light and relaxation, supported by personal guidance, education, trusted specialists and a community. The idea is simple: in a world overflowing with tests, treatments and advice, people need someone to help them connect the dots.

In this conversation with Founded by Women, Michal shares what inspired her to build Vidavii, how she is solving overwhelm in the wellbeing space, and what comes next, from deeper biological age testing to new locations and partnerships. She also talks about her responsibility as a woman founder to make sure the future of longevity reflects different bodies, life stages and lived experiences.

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Q: What inspired you to build Vidavii, and what led you to bring a technology-based approach to wellbeing to London?

My interest in health began long before longevity became a popular conversation. When I was twelve, my father lost his eyesight because of diabetes. Seeing how profoundly health can change someone’s independence shaped my belief that we should support our wellbeing earlier in life. My own experiences with endometriosis and, later, menopause deepened that understanding.

My career brought together two worlds: technology, through my years at Microsoft, and wellbeing, where I have worked since 2007. I became interested in how we could translate innovation into something practical and personal—something people could integrate into everyday life.

I co-founded Vidavii with Noam Sagi, whose work as a body-centred psychotherapist brought an essential perspective on emotional wellbeing. Together, we wanted to create a place where physical health, brain health and emotional resilience could be considered together.

London had been our home for more than two decades. Through our work at 58 Wellbeing Centre, we saw how much people wanted to feel better, but how difficult it could be to make time for themselves. Vidavii grew from that understanding: bring technology, human expertise and care into a welcoming experience that people can return to consistently.

Q: Vidavii describes itself as a brain, body and mind longevity ecosystem. What problem are you solving for people looking after their wellbeing, and how does the circuit fit into that?

People have more wellbeing information and options than ever, yet many feel overwhelmed. They are left to connect the dots between tests, treatments, supplements and lifestyle advice, often without someone helping them understand what is relevant to their own needs.

As a Longevity Architect, my role is to help make those connections. We consider the whole person: their physical health, mental clarity, emotional wellbeing, daily habits and what they want to be able to do in life.

The Vidavii circuit gives that approach a practical starting point. It brings selected technologies—including cold exposure, compression, infrared light and relaxation—into a guided experience designed to fit into a busy day. Around it, we build personal guidance, education, access to trusted specialists and a supportive community.

The circuit is one part of an ongoing relationship with wellbeing. Sleep, movement, nutrition and emotional health all matter, and our purpose is to help people build a routine they understand and can sustain.

I have learned that the most sophisticated offering is only valuable if someone can use it consistently. We want people to leave with greater confidence in how to care for themselves.

Q: What’s next for Vidavii?

Our next chapter is about deepening personalisation and widening access.

We are working towards integrating more in-depth biological age testing into the Vidavii ecosystem. Our aim is to use those insights, alongside other health and lifestyle measures, to help clients understand their starting point and make more informed choices. Testing becomes valuable when it leads to clear guidance and meaningful follow-up.

We also plan to extend our community into additional locations and develop partnerships that bring Vidavii closer to people’s everyday lives. As we grow, preserving the quality of care and personal connection will remain central.

Beyond our own expansion, I want to continue actively contributing to the movement to democratise longevity. That means making knowledge easier to understand, helping people navigate their options and developing more accessible ways to engage with their health.

As a woman and a founder, I feel a responsibility to ensure that the future of longevity reflects different bodies, life stages and lived experiences. My ambition is for more people to have the knowledge, confidence and support to shape their health—and more freedom to enjoy the life ahead of them.

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