Diving
Nitrogen Narcosis: What Depth Does to a Diver's Judgment
Nitrogen narcosis dulls judgment before a diver notices anything is wrong. Here is why depth impairs decision making, and why self-diagnosis often fails.
May 22, 2024
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7 stories for“nitrogen narcosis”
Diving
Air Versus Mixed Gas Below 50 Metres, Explained
Below 50 metres, ordinary air becomes a liability for divers. Here is the physics behind nitrogen narcosis, rising gas density, and why trimix exists as the technical diving standard.
Jun 8, 2026
Diving
Nitrox Buys You Bottom Time and Costs You Depth, and It Will Not Make You Less Tired
Enriched air extends no-decompression limits at recreational depths by reducing the nitrogen you take on. It also imposes a hard ceiling on how deep you can take it, and the claim about post-dive fatigue has never held up.
Sep 5, 2026
Diving
Deep Dive Dubai: 60 Metres of Water and No Weather at All
The world's deepest pool holds 14 million litres at a constant 30C, with a sunken city at the bottom. What it removes from diving turns out to be the interesting part.
Aug 6, 2026
Diving
Fitness to Dive: Why the Medical Form Is Not a Formality
PFO, asthma, diabetes and certain medications can all change whether diving is safe. Here is why the medical questionnaire before a course matters.
Jan 27, 2025
Diving
The Blue Hole at Dahab: Why Experience Level Decides Everything
Egypt's most famous sinkhole is also its most argued-over dive site. What the Blue Hole actually is, and why so much depends on who is diving it.
May 20, 2024
Diving
The Open Water Certification: What It Does and Does Not Qualify You For
An Open Water card opens the door to diving worldwide, but it is a narrower licence than most new divers assume. Here is exactly what it covers.
Sep 9, 2025
