Levels (@levels)

Does an 18-hour fast put you into ketosis?   Barely, according to Dr. Courtney Peterson’s research.   She explains why meaningful increases in ketones generally require much longer fasting and why ketosis probably isn’t driving the benefits of daily intermittent fasting.   Full episode on the…

His wearable data began changing months before he died.   Resting heart rate rose. Heart-rate variability fell. His gait, sleep, and activity changed.   Dr. Michael Snyder explains that the warning signs were captured, but no system existed to connect the pattern to the person or his physician…

Your poop is telling a microbiome story. Here’s how to read it   Bloating, fatigue, rashes, brain fog? Your poop holds clues.   Dr. Will Bulsiewicz explains how stool patterns reflect the health of your gut microbiome. Learn how the Bristol Stool Chart maps to specific imbalances—so you can fix…

Finding a nodule on a whole-body MRI may not be the real problem.   Most people have abnormalities.   Dr. Michael Snyder explains why the useful question is whether an abnormality is changing, and why answering that question requires a baseline scan to compare against.   📺 Watch on YouTube…

Why does medicine wait until people are sick to start studying them?   Dr. Michael Snyder explains why his lab began profiling healthy people over time, looking for the moment their biology starts moving away from its normal baseline.   It is easier to address something when it is first beginning…

If fat has more calories, why doesn't it always cause weight gain?   Dr. Arne Astrup explains why appetite matters just as much as calories.   📺 Watch on YouTube: https://youtu.be/ajqg7LdM0PM   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your…

Can the best scientists admit they were wrong?   Dr. Arne Astrup explains why decades of research changed his mind about dietary fat.   📺 Watch on YouTube: https://youtu.be/ajqg7LdM0PM   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your podcasts…

Now available wherever you listen to podcasts. 🎙️   Additional insulin-related blood work you should know   #metabolichealth #bloodwork #biomarkers #pancreas #insulin

Why doesn't cheese behave the way nutrition labels predict?   Dr. Arne Astrup explains why foods are more than just their nutrients.   📺 Watch on YouTube: https://youtu.be/ajqg7LdM0PM   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your podcasts…

Did eating less fat accidentally make our diets worse?   Dr. Arne Astrup explains why replacing fat with refined carbohydrates may have changed the entire food supply.   📺 Watch on YouTube: https://youtu.be/ajqg7LdM0PM   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or…

We digitized healthcare. It didn't transform care.   Dr. Robert Wachter explains what we got wrong, and why it matters for AI.   📺 Watch on YouTube: https://youtu.be/762DTOa7uTY   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your podcasts!   #AI…

What are the drivers of migraine?   For A Whole New Level, Dr. Anjali Dsouza discusses why biomarker testing can be beneficial to help uncover what’s triggering symptoms, whether that’s food sensitivities, inflammatory compounds, hormonal changes, toxic chemical exposure, or other factors.   📺…

What is pancreatitis?   📺 Watch on YouTube: https://youtu.be/5RnEdiTRYfI   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your podcasts!   #metabolichealth #bloodwork #biomarkers #pancreas #insulin

Why AI’s medical knowledge isn’t enough   AI may know more medicine than your doctor.   That doesn't make it smarter.   Dr. Robert Wachter explains why expertise still matters.   📺 Watch on YouTube: https://youtu.be/762DTOa7uTY   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts…

Airplane cockpits know how to tell pilots what actually matters.   Healthcare doesn't.   📺 Watch on YouTube: https://youtu.be/762DTOa7uTY   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your podcasts!   #healthcare #AI #NextLevel

CRP: What this inflammation marker really tells you   What does C-reactive protein actually tell you about inflammation?   For A Whole New Level, Dr. Sharon Bergquist and Mike Haney discuss how to interpret the most common inflammation marker in your blood work. @levels   - hs-CRP helps detect…

Signs of worsening kidney health to watch out for   📺 Watch on YouTube: https://youtu.be/xqoCS9GZIjE   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your podcasts!     #metabolichealth #metabolism #kidneyhealth #kidneys #hydration #fyp

A teenager got **39x the intended antibiotic dose** after multiple people trusted the computer over their own judgment.   What happens when AI gets even better?   📺 Watch on YouTube: https://youtu.be/762DTOa7uTY   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or…

Your brain expects other people.   That isn’t philosophy.   It’s evolutionary biology.   Dr. Julianne Holt-Lunstad explains why social connection is part of human survival.   Full episode on the Levels YouTube channel and all streaming platforms.   #health #longevity #socialconnection #fyp

Why fiber matters not just for the gut but for overall health   For A Whole New Level, Will Bulsiewicz, MD, discusses the importance of dietary fiber for improving gut microbiome health, which can help improve overall health.   📺 Watch on YouTube: https://youtu.be/iAHOycufGn8   🎧 Listen on the go…

Before testosterone therapy, get your PSA checked. It matters.   For A Whole New Level, Dr. Jesse Mills discusses how PSA helps assess prostate cancer risk and guides next steps.     📺 Watch on YouTube: https://youtu.be/Zs2CZC2GueA   🎧 Listen on the go: Search "A Whole New Level" on Apple…

Loneliness might be more like hunger than sadness.   It’s a biological signal.   Dr. Julianne Holt-Lunstad explains why AI may quiet that signal without replacing real connection.   📺 Watch on YouTube: https://youtu.be/g6D2CIpB2n4   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts…

You can have lots of friends and still be lonely.   You can also spend most of your time alone and not be lonely at all.   Dr. Julianne Holt-Lunstad explains why the difference matters.   Full episode on the Levels YouTube channel and all streaming platforms.   📺 Watch on YouTube…

How the gut and the brain communicate   📺 Watch on YouTube: https://youtu.be/iAHOycufGn8   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever you get your podcasts!     #metabolichealth #metabolism #guthealth #gutmicrobiome #fiber

Knowing your health risks and actually managing them are two different things.   Dr. Ami Bhatt explains why asking patients to stay disciplined for decades against a future disease outcome is an enormous ask.   Prevention needs more than awareness.   📺 Watch on YouTube…

You don't have to feel lonely to be socially isolated.   Dr. Julianne Holt-Lunstad explains why isolation may actually be a bigger health risk than loneliness.   📺 Watch on YouTube: https://youtu.be/g6D2CIpB2n4   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or…

A cardiovascular researcher’s nutrition advice is surprisingly simple.   Eat more whole foods. Eat less of what Dr. Kevin Maki calls the “four white poisons.”   📺 Watch on YouTube: https://youtu.be/l8QzuuTYxLI   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever…

Why do some people gain weight while others don’t?   For *A Whole New Level*, Gary Taubes explains why “calories in, calories out” describes weight change — but tells us nothing about its cause.   📺 Watch on YouTube: https://youtu.be/74WAhHgEk_0   🎧 Listen on the go: Search "A Whole New Level" on…

Does energy balance still matter if the body compensates?   Dr. Herman Pontzer explains why calories in vs. calories out still holds — even with adaptation.   📺 Watch on YouTube: https://youtu.be/6GUWQuT-vRc   🎧 Listen on the go: Search "A Whole New Level" on Apple Podcasts, Spotify, or wherever…

Can you automatically dismiss a study because industry funded it?   Dr. Kevin Maki says the better question is whether the methods hold up.   Full episode on the Levels YouTube channel and all streaming platforms.   📺 Watch on YouTube: https://youtu.be/l8QzuuTYxLI   🎧 Listen on the go: Search "A…