Articles
Evidence-led writing on desks, food, movement, sleep, focus and AI · for people whose job keeps them at a screen.
Is Rucking Worth It? What Load-Carriage Research Says About Walking With Weight
Rucking is walking with a weighted backpack. The word comes from the military rucksack, and so does most…
Should a healthy person without diabetes wear a continuous glucose monitor?
For most healthy people, no. A continuous glucose monitor (CGM) will show you a number that rises after…
Is “decision fatigue” real, and does an AI assistant actually fix it?
“Decision fatigue” as most people use the phrase means a specific theory: willpower is a tank, every choice…
Could Low Vitamin D Explain Why You Are Always Tired?
A clean result from a small trial, and a search for its replication that came back empty. What…
Does AI pair-programming make you a worse debugger?
The short answer is: it can, and the mechanism is not mysterious. In the one randomised trial that…
Does Stuffy Air Make You Worse at Thinking?
A headline finding that sounds too large to be true, a space agency study that could not reproduce…
AirPods hearing test, hearing aid mode and Hearing Protection: do they protect ears that wear headphones all day?
If you wear earbuds for eight hours of calls and focus music, the AirPods hearing features solve a…
Is “Cortisol Face” Real? What High Cortisol Actually Looks Like
Cortisol is real, moon face is real, and the connection the trend draws between a stressful week and…
Is Writing Notes by Hand Better Than Typing?
Two famous findings, two published challenges, and a detail about the typing condition in the newer study that…
What a “readiness” or “recovery” score actually measures (and whether it should change your day)
A readiness or recovery score is a proprietary blend of heart rate variability (HRV), resting heart rate, sleep…
Can a Sleep Tracker Make Your Sleep Worse?
Sleep clinicians started seeing patients who trusted their tracker over their own experience. The name they gave it,…
Can a smartwatch tell you that you have high blood pressure? What Apple’s hypertension notifications actually do
A watch cannot tell you your blood pressure, and Apple’s hypertension notifications do not claim to. What the…
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