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We talk about resilience all the time, and yet that term still seems elusive. What does it mean in biological terms? Is it a sense? A neurological process? An emotion? Can we get better at being resilient? And more importantly: can we use resilience as a tool to live better and longer?

Every winter, from approximately mid-October through to mid-February, many people in the UK may benefit from vitamin D supplementation during the winter months. However, anonymous results from Thriva users’ health profiles show that 1 in 3 users are not taking supplements, which is associated with lower vitamin D levels.

As it turns out, not all vitamin D supplements are created equal. According to a 2025 study from the University of Surrey, taking vitamin D2 supplements actually depletes levels of vitamin D3, the more effective form of the vitamin.

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. 

Iron is a nutrient that helps transport oxygen around your body. If you don’t get enough, it can lead to iron deficiency anaemia. Common symptoms of low iron levels include tiredness, dizziness, shortness of breath, and heart palpitations. You can check whether your iron is within the normal range with a blood test. Eating iron-rich foods and taking an iron supplement can help increase your levels.

We've just added something new to the Thriva app: your own Health Assistant. 

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?