Some recent grumblings from whoop about a paper from last year made me reflect on industry standards and who decides on them. It’s a tough question but an important one for the industry and consumers alike. More in the link in comments

The discourse around London marathon and performances there has been extensive and interesting to say the least. The thing that caught my eye was Kejelcha’s fueling and the lessons we can take from that as it pertains to health & performance healthperformancenexus.substack.com/p/what-can-w...

Initial success can be a falsely reinforcing loop, especially when misunderstanding physiology and first principles. This pattern seems to be rife, for example in volume or body weight discussions in endurance sport More here: healthperformancenexus.substack.com/p/the-proble...

Biometrics are ever expanding and sampling “waste” makes sense in a lot of contexts. A new paper suggests we could measure stress from your toilet healthperformancenexus.substack.com/p/measuring-...

There are some trends I have spotted that are about to break and become mainstream, they're classic of the current media & social media environment - don't be fooled though, they're just under-nuanced takes. More here: open.substack.com/pub/healthpe...

What do you do when your wearable and feeling disagree? How do you modify training when sick? @drpetertierney.bsky.social and I cover this other factors like HRV & AI illness detection in this piece. healthperformancenexus.substack.com/p/illness-tr...

Interested in health or performance (or both and their interplay) there’s something for you here. These are my top performing articles from over 2 years of weekly articles healthperformancenexus.substack.com/p/start-here

Really impressive work building a model predicting insulin resistance AND crucially providing users with good advice to remedy the situation. Authors used a mix of wearables, demographics and easily available blood tests. healthperformancenexus.substack.com/p/wearable-i...

Some interesting research has been published recently looking at multivitamins, coffee’s link to the microbiome & finally a paper with lots of hype that’s largely being misinterpreted when it comes to sleep, exercise and their impact on aging. healthperformancenexus.substack.com/p/multivitam...

Should we all see ourselves as athletes and embrace the athlete mindset? Or is this just marketing? I dissect it all here, with some high yield take aways for folks on lesser known aspect of the athlete mindset that could be helpful. healthperformancenexus.substack.com/p/embracing-...

New arrivals on the wearables market have seen some big hype and being excitement but what’s the science behind them? Is there data? What can we learn? healthperformancenexus.substack.com/p/newcomers-...

Sulforaphane is a fascinating molecule with quite a long history which has been a quiet darling in the health space for a while but has recently gained some hype in the performance space too thanks to Nomio, but what does the research actually say? healthperformancenexus.substack.com/p/sulforaphane

As I wrote about a few weeks back, there's a difference between knowing and understanding. Never has this been truer than my own experiences with coffee, sleep and energy. That said, the learnings and some of the facts in this piece may surprise some folks. lnkd.in/gcVAB84x Keen to hear feedback

Coaching as a practice extends well beyond the white lines of the sporting arena, and even beyond the boardroom. Here are some great lessons to be learned from some of the world's best coaches which can be applied broadly in the health and performance realms. open.substack.com/pub/healthpe...

Knowing something and truly understanding it are not the same. This manifests all over health & performance inside & outside of the sporting realm. More here: healthperformancenexus.substack.com/p/knowing-vs...

Lessons for all from the world of hyrox and thoughts on what it needs to sustain momentum as well as its chances of Olympic inclusion healthperformancenexus.substack.com/p/hyrox

Beyond the superficial 2026 health and performance trends you’ll see written about. healthperformancenexus.substack.com/p/2026-trend...

Most under rated factor in health and performance? Environment by a margin. healthperformancenexus.substack.com/p/are-you-be...

Most people aren’t auditing or reviewing their year at all, let alone well. Some thoughts on reviews and how to make them impactful here healthperformancenexus.substack.com/p/dont-make-...

After protein’s moment in the sun ends, the next can off the tank will be fibre (and justifiably so). Here’s a look at fibre for health and in athletic performance healthperformancenexus.substack.com/p/you-should...

What the NCAA XC war of words can teach us about health and performance healthperformancenexus.substack.com/p/what-a-war... Spoiler - the paradox is both coaches are right but simultaneously neither are right

Why isn’t there more research on women and what can we do (for all stakeholders) to improve this? I’d love thoughts and opinions on the piece and potential solutions to add to it healthperformancenexus.substack.com/p/why-isnt-t...

Most people have no idea how to evaluate if a coach is good or not (hint: having the best athlete is neither necessary nor sufficient to be a good coach coach). Some thoughts on the process here healthperformancenexus.substack.com/p/what-is-co... What have I missed?

Ever wonder why more companies aren’t science based? Here’s some answers for you healthperformancenexus.substack.com/p/why-arent-...

Trigger warning I do my best to explain that marketing isn’t evil and that scientists should do more of it (including why I wanted to learn marketing) whilst also trying to explain how some scientists are using (and misusing it). I also talk about the use of science as a brand. lnkd.in/dwtBkTKY

Trigger warning on some of these observations from 20 years in health and performance healthperformancenexus.substack.com/p/observatio...

It’s pretty easy to be mislead in 2025 with people espousing advice left right and centre. It’s probably better to mute them and watch rather than listen 😉 open.substack.com/pub/healthpe...

Blood testing coming to your wearable, law suits over patents and even some meta trends to follow - it’s all here in my latest healthperformancenexus.substack.com/p/blood-draw...

Some thoughts on wearables and the industry - specifically some things I’d love to see and folks need to understand. There’s something for everyone here - users, the industry and more. healthperformancenexus.substack.com/p/gifts-requ...

You can swap 10mins of vigorous activity for 10000 steps right?… Not really, it’s more nuanced than that. healthperformancenexus.substack.com/p/not-all-ex...

To try better understand, quantify and codify how much discomfort we need in health and performance I developed the concept of “The Window of Progress” Hint; it’s not ALWAYS about being uncomfortable and how uncomfortable matters! healthperformancenexus.substack.com/p/progress-w...

CGM use in people without diabetes continues to be a hit topic. Having worn one for 3 years & worked with people using them during that time I have some thoughts healthperformancenexus.substack.com/p/continuous...

Not happy with your VO2max? Think it means you’ll die earlier? Maybe.. maybe not.. There’s probably some misunderstanding of the data, more here: healthperformancenexus.substack.com/p/vo2max

Your wearable monitors stress? Probably not well, but last week there was what looks to be a step change in wearable stress monitoring. More here: healthperformancenexus.substack.com/p/can-wearab...

Some thoughts on how we can have more knowledge than ever but still be struggling with some of the same health and performance problems healthperformancenexus.substack.com/p/the-problem

Skipping breakfast had a great PR campaign and rebrand as 'intermittent fasting' recently, but what are the health and performance implications of it? I had a look at this exact question in this piece: healthperformancenexus.substack.com/p/breakfast-...

Interested in widespread use of wearables for prevention? Or Whoop vs the FDA? All covered here for you: healthperformancenexus.substack.com/p/wearables-...

After some pretty average commentary and takes on this article and repeatedly being sent it I ended writing about it to help provide some clarity for folks healthperformancenexus.substack.com/p/the-10-per... Let me know what you think

The zone 2 discussion has gotten heated on social media and many people have talked past each other. This is my attempt to synthesise zone 2 training for health and performance. @jemarnold.bsky.social this may interest you

More reasons to drink coffee - I’m sure @mariofraioli.com will approve 🤣 healthperformancenexus.substack.com/p/coffee-and...

My latest on applying the concept of periodisation to aspects outside of competitive sport healthperformancenexus.substack.com/p/periodisat...

Can we out-exercise a sedentary lifestyle? And if so, how much is enough? Is it about exercise or is general movement enough? open.substack.com/pub/healthpe...

We all know the impact that ozempic is having on society from a weight loss point of view. But what about more broad health impacts and even performance impacts. Thanks for the nudge on this @mariofraioli.com healthperformancenexus.substack.com/p/ozempic

There’s been some great recent research in both the creatine and vitamin D spaces I took a look at it all here healthperformancenexus.substack.com/p/somewhat-s...

Experimenting with pulling items out of my newsletter and re-publishing them as standalone blog posts on my website for easier shareability. Here are some recent thoughts inspired by @drdavidlipman.bsky.social's excellent piece, "Earning the Right": themorningshakeout.com/earning-the-...

What we can learn from recent happenings in the health and performance space healthperformancenexus.substack.com/p/health-and...

Evening reading by @drdavidlipman.bsky.social "What's The Minimum Effective Dose". In a nutshell, get the basics right (sleep, nutrition, exercise), but reap higher yields by hitting all three consistently. #sciencesbitches open.substack.com/pub/healthpe...

Read the full paper here! 🔗 doi.org/10.1123/ijsn...

Another log on the evidence fire for 0.8g/kg of protein daily probably being too little: link.springer.com/article/10.1... Aligns with this piece I wrote recently with a broader audience in mind: open.substack.com/pub/healthpe...

After some recent pilot data was blasted on the PR wire I take a look at it in the broader context of the research base healthperformancenexus.substack.com/p/hrv-and-ha...