Ryan James Campbell

10/05/2026

Your gut bacteria may be helping decide how your brain’s immune cells behave.

Dietary fiber feeds beneficial gut bacteria, which produce compounds called short-chain fatty acids. One of them, butyrate, helps maintain the intestinal barrier and regulate inflammation, with effects that can ultimately reach microglia, the brain’s resident immune cells.

This gives us a very different way to think about fiber. What you feed your gut microbes may influence the inflammatory environment in which your brain ages.

Here’s my recent blog post on why fiber may be one of the most important nutrients for your brain: https://drperlmutter.com/fiber-may-one-important-nutrients-brain/

09/18/2026

Most people don’t realize that inflammation is at the root of their health issues.

We don’t think of depression as inflammation.
We don’t think of anxiety as inflammation of the brain.
We don’t think of cancer or obesity as inflammation.

But they are inflammatory diseases.

A nutrient-poor, ultra-processed diet and damage to the gut microbiome are driving these issues.

Think of your body like a computer—when things aren’t working, you turn it off and reboot it.

How? Remove inflammatory foods, flood your body with nutrient-dense, healing foods, and reset your metabolism, gut, and brain. It only takes 10 days to feel a massive difference in your well-being.

If you're ready to reset your system, check out my 10 Day Detox Program: https://drhyman.com/pages/10-day-detox

09/17/2026

It isn't easy but it is simple.

08/29/2026

08/14/2026

A walk may be one of the simplest ways to change your state of mind.

Walking increases blood flow and oxygen delivery throughout the body, including the brain. It also supports neuroplasticity through factors such as BDNF, a protein involved in learning, memory, and the growth of new neural connections.

In a Stanford study, walking increased creative output by an average of 60% compared with sitting. The effect occurred whether participants walked outside or on a treadmill, suggesting that the movement itself helped unlock more divergent thinking.

You do not need a complicated routine to support your brain.

Take a walk without your phone. Let your eyes take in the distance, allow your mind to wander, and give your nervous system room to reset.

08/10/2026

Your relationships, emotions, and sense of purpose all influence your biology.

Feeling loved and connected helps regulate cortisol and signals safety to your nervous system. Purpose is associated with greater resilience and a lower risk of early death. Positive emotions have even been linked to lower levels of inflammatory markers like CRP and IL-6.

Your biology is always responding to how you live, think, and connect.

Make time for the people and experiences that bring your life meaning. They may be some of your most powerful medicine.

06/26/2026

Your future doctor is using ChatGPT to pass med school so you better start eating healthy

06/01/2026

05/29/2026

A daily walk of just 7–10k steps does things most people are paying a lot of money to try to replicate:

👉 Pulls sugar out of your bloodstream without extra insulin
👉 Shifts your body into burning stored fat for fuel
👉 Drops cortisol...which means less cravings and less belly fat storage
👉 Drains inflammation through the lymphatic system
👉 Builds mitochondria so you burn more calories even at rest

And over time, insulin sensitivity can improve up to 40%. Hunger stabilizes. Weight loss stops feeling like a constant fight.

The question is...do you actually know what’s going on inside your body right now? Your blood sugar, insulin levels, inflammation markers?

A simple bloodwork panel can tell you exactly where you stand and what needs the most support. Comment ‘PANEL’ below and I’ll share the at-home panel I recommend for my patients.