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The Science · 7 min read
What Is Minimal Erythema Dose (MED)? The Science Behind Sunburn and UV Exposure
Minimal Erythema Dose (MED) is your personal sunburn threshold — the lowest UV dose that produces visible skin redness. Here's how it's measured, why it differs between people, and why it is not the same as getting "enough" sun.
05 JUL 2026
The Science · 6 min read
Does UVA light improve cycling performance? A closely-read verdict
A controlled trial in trained cyclists is often cited as evidence that sunlight boosts performance. Read carefully, it shows something more interesting — and more honest.
21 JUN 2026