Cancer Prevention Starts Before Screening

Doctor Turned Health Coach · Jun 26, 2026 · 12m

Cancer screening can help us catch cancer earlier, but it does not stop cancer from forming in the first place.

In this episode, I talk about the rise of early-onset cancers, especially colorectal and breast cancer, and why we need to think more seriously about true prevention. Screening has a role, but if a tumor starts forming years before it is ever found, then prevention has to begin much earlier.

I walk through three major areas that may be contributing to this trend: ultra-processed foods, circadian disruption and poor sleep, and damage to the gut microbiome from antibiotics and…