We Can Detect Cancer Years Earlier—So Why Aren’t We?

Mark Hyman

Apr 22, 2026

Episode description

Most of medicine is built around snapshots. You feel something, you test for it, and by the time you find it, you’re already behind.

But what if the problem isn’t the test—it’s how we use it?

In this episode, I sit down with physicist and imaging pioneer Dr. Daniel Sodickson, Chief Medical Scientist at Function Health and author of The Future of Seeing. We break down why tools like MRI are shifting from one-time scans to something far more powerful: tracking your health over time.

Watch the full conversation on YouTube, or listen wherever you get your podcasts.

In this episode, we cover:

• Why waiting for symptoms puts you behind—and how to get ahead

• What an MRI can reveal about your body that bloodwork can’t

• How tracking your health over time helps you catch problems sooner

• Why having a baseline could change the way you make health decisions

• What it means to shift from reacting to disease to actually predicting it

When you stop looking at a single result and start looking at patterns, you can catch changes earlier, reduce false alarms, and better predict where your health is headed.

View Show Notes From This Episode

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Mindsip insights from this episode:

Integrate low-power MRI scanners for continuous health monitoring

In the future, low-power MRI scanners could be built into a chair or bed for continuous, cheaper monitoring once a high-quality baseline has been established.

#MRI

#screening

Utilize comprehensive medical history for effective health monitoring

The Star Trek tricorder likely works not as a powerful standalone scanner, but by accessing a person's complete medical history and only looking for changes.

#AI

#testing

Leverage data to minimize false positives in prostate cancer prediction

An AI model's false positive rate for prostate cancer prediction dropped from 64% to under 10% when it was given prior images and other health data for context.

#AI

#cancer

Leverage imaging to reduce future scan costs

Paradoxically, the more we image you, the faster and cheaper we can scan you next time because an AI only needs to look for changes from your established baseline.

#AI

#testing

Get a baseline full-body MRI scan in your 20s

Everyone should consider getting a baseline full-body MRI scan as early as their 20s to establish what is normal for their body over time.

#MRI

#screening

Build artificial nervous system for early disease detection

Continuous scanning is like building an artificial nervous system that gives us early warnings for internal diseases our bodies didn't evolve to sense.

#AI

#diagnosis

Prioritize early detection to effectively combat cancer

The cure for cancer is early detection, as most cancers are much easier to treat before they become invasive and symptomatic.

#cancer

#screening

Utilize personal data for real-time health navigation

The future of medicine is like a GPS for health, using your personal data and medical knowledge to provide real-time course corrections that keep you healthy.