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Dr Tommy Wood joins Greg and Charlie to explain why cognitive decline isn't inevitable, and why doing things you're bad at might be the most powerful thing you can do for your brain.

A wave of nausea mid-run, the urgent dash to the loo before a competition, a stitch that stops you in your tracks. Ever wondered why your gut turns against you during exercise?

Professor Naveed Sattar, one of the most cited researchers in diabetes and obesity science, explains why type 2 diabetes is really a disease of fat in the wrong places, and why the same weight gain does very different things to different people.

I'll just have a quick look on Instagram, you think, as you open the app and begin scrolling. In the space of what feels like a few cat videos, an hour has gone and you're wondering where the morning went.

Dr. Lucia Aronica, an epigenetics and nutrigenomics scientist at Stanford University School of Medicine, discusses why personalised nutrition matters, and what the evidence actually shows about whether one-size-fits-all healthy eating really works.

There’s a particular kind of tired that sleep doesn’t fix. You wake up exhausted, your concentration dips before lunch, and you can’t quite explain why.

How optimistic do you feel right now? The world is a messy place at the moment, and anyone could be excused a little pessimism every time they look at what’s happening in the news cycle.

When you choose a supplement, it's the active ingredients you focus on. But flip the label over, and there's usually a longer list of other ingredients underneath. Most are harmless and there for good reason, but there are some you may want to avoid. Here's what they all actually do, and which ones to avoid.

New recommendations coming out of the US suggest that adults should be measuring their lipoprotein (a) levels at least once. But what does Lp(a) actually measure, and should you consider testing for it?

Just because other companies sell something doesn’t mean we will, and that’s why cortisol tests aren't in our standard range. Our team of trained doctors decides which tests to include through a rigorous process, evaluating the latest research and collaborating with experts.

You’ve probably heard plenty of public health advice that hopes to reduce your risk of cardiovascular disease. And it’s for good reason, because heart attack and stroke are among the leading causes of death worldwide. But the advice can get overwhelming. We have recommendations for the optimum amounts of physical exercise to get each day, how much sleep to aim for, and what foods and drinks go into an ideal diet. It’s a lot to keep in mind during busy day-to-day.

Why am I so tired all the time? Is this supplement actually doing anything? Should I be worried about my cholesterol? At some point, most of us have typed questions like this into a search engine. And if you're doing that now, you're likely seeing an AI summary right at the top of your results. You might even be putting your question straight to an AI chatbot like ChatGPT, Claude, or Gemini.

If you're a fan of coffee, you may feel like nothing beats a hot mug first thing. Whether it's providing a caffeine-infused kickstart or a rousing aroma, it's often a vital part of morning rituals.

You get your blood test results back. Everything’s “normal.” But what does that actually mean, and is normal the same as good?

Has spring finally sprung? With the days getting longer, there are more possibilities for getting outside — and even a few minutes of fresh air might be more beneficial than you think.

In this special Q&A episode, Charlie and Greg answer your most-asked questions spanning nutrition, caffeine, and sleep.

The idea is undoubtedly exciting—a DNA test to unlock your genetic blueprint, providing clear instructions on what supplements to take and how to eat. But the reality is that DNA methylation tests have critical limitations, and they may not deliver what they promise. 

Taking a quick trip to the kitchen cupboard at 9 pm every night. Picking up a snack as a go-to reward for a hectic day. Mulling over meals, questioning whether that was enough protein or the right number of calories. These are familiar scenarios for many of us.

Dr Lauren Colenso-Semple, a researcher in female physiology and strength training, joins Greg and Charlie to unpack the science of how women should actually train across the lifespan.

At around the halfway point of the year, how are everyone's New Year's resolutions holding up? Chances are, lots of well-meaning intentions to "eat better" or "get fitter" got left by the wayside back in February. Plenty of well-meaning goals don't stick because they're too vague. If you treat this midpoint as a time to recalibrate, it's the perfect time to check in with yourself and find ways to make your goals a reality.