— NOVR Journal
Notes on time.
Plain-English guides to the body clock, caffeine, sleep timing and how to read a supplement label. Sourced and dated, with no hype.
Circadian biology
What is your body clock?
A plain-English guide to the circadian rhythm: the master clock in your brain, why light matters most, and the 2017 Nobel Prize science behind it.
6 min read · 30 October 2026 CaffeineCaffeine half-life: why we say "not after 2 pm"
How long caffeine stays in your body, why a 2 pm cut-off makes sense, how much is in coffee and tea, and how to count your daily total.
5 min read · 30 October 2026 ChronotypesLark or owl? What your chronotype is and how to find yours
What a chronotype is, why some people are larks and others owls, how age and genes shape it, and a quick way to find yours.
5 min read · 30 October 2026 How to read a labelWhy we don't make claims about our botanicals
How UK health claims on supplements work, why plant extracts have almost no authorised claims, and five red flags to look for in supplement marketing.
6 min read · 30 October 2026