In the past ten years, the term “personalization” has been extensively used in the field of medicine. Despite the numerous promises to customize care for each patient, many individuals still undergo the same diagnostic procedures, receive standard prescriptions, and experience common side effects. This creates a paradox in AI-powered healthcare, where although artificial intelligence has enhanced certain aspects of healthcare efficiency, it has not necessarily made it more personalized. Patients often feel like mere data points rather than individuals with unique needs.
The issue, experts argue, lies not in the technology itself but in the type of data being utilized. Most AI models in healthcare rely on population-level datasets like electronic health records and claims information. While these datasets can identify statistical trends across large patient populations, they often fail to capture the intricate details of what is happening within an individual’s body. They can predict probabilities but struggle to grasp biological realities.
Mika Newton, the CEO of xCures, emphasized earlier this year that for AI to truly revolutionize healthcare, it must be based on high-quality data that starts with the patients themselves. Addressing this personalization challenge is now a priority for startups like Parallel Health based in California, which aim to assist AI in interpreting biological data directly.
Moving from Data Points to Living Systems
“Real personalization involves treating individuals as complex systems, not just statistics,” stated Natalise Kalea Robinson, the co-founder and CEO of Parallel Health. Instead of relying solely on medical records or demographics, companies like Parallel Health are now using biology as the foundation for personalization. Their platform utilizes quantitative whole-genome sequencing to map the various bacteria, viruses, and fungi that constitute a person’s skin microbiome. This approach aims to understand an individual’s biological reality at a microbial level, which can vary significantly even among patients with the same diagnosis.
Teaching AI to Understand Cause and Effect
Dr. Nathan Brown, the Chief Science Officer at Parallel Health, highlighted that analyzing how microbes interact with each other and the human host enables AI to infer causality rather than mere correlation. This shift transforms AI from a pattern-matching tool into a predictive engine that can identify microbial imbalances preceding symptom onset. This shift from reactive to preventive medicine allows for the potential redefinition of complex diseases based on fundamental principles of host-microbe interaction.
Scaling the Science
Contrary to the perception that personalized medicine is limited to bespoke treatments, Parallel Health’s lead dermatologist and clinical advisor, Dr. Seaver Soon, explained that the platform technology efficiently matches patients to tailored solutions from a defined toolkit. By leveraging an expanding biobank of microbial strains and a manufacturing process for stabilizing targeted phage therapies, Parallel Health aims to streamline the delivery of personalized treatments. This approach mirrors the evolution of genomic medicine, where DNA sequencing eventually became routine practice as technology advanced.
The Ethical Edge
As biology-driven AI progresses, concerns regarding privacy and equity are gaining prominence. The National Center for Biotechnology Information highlighted the importance of data sovereignty, emphasizing the right of individuals to control how their biological data is utilized. Parallel Health incorporates transparency and equitable access into its model, ensuring that patients understand the data collected and its intended use. The aim is to prevent the creation of a two-tiered healthcare system where precision care is only accessible to the affluent.
In conclusion, the future of personalized medicine hinges on AI’s capability to account for the biological complexity of each individual rather than relying solely on population data patterns. By shifting the power back to the patient and prioritizing trust, consent, and shared benefits, healthcare can truly evolve towards a more personalized and equitable future.

