In medicine, the most powerful interventions often happen before disease ever appears. Yet across the US healthcare system, prevention consistently takes a back seat to treatment - leaving avoidable illness, outbreaks, and chronic disease to escalate before action is taken.
Preventive medicine physician and public health researcher Dr. Barry R. Davis says this disconnect reflects what he calls the “prevention gap” - the distance between what science already knows can prevent disease and what society actually implements.
“The challenge isn’t that we lack evidence,” Dr. Davis explains. “It’s that prevention requires acting before the damage is visible, and systems tend to reward responding to crises rather than preventing them.”
In his new book The Preventioneers: Diseases, Disasters, and the Discoveries That Changed Our World, Dr. Davis speaks to why adopting a true prevention mindset is essential to protecting public health and building a more resilient future, and why so many institutions struggle to do it.
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