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

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39 stories for“fitness to dive”
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

A wetsuit that fits badly is a wetsuit of any thickness that does not work. Match millimetres to the water, check the fit at the neck, the small of the back and the wrists, and know which neoprene you are paying for.
Apr 7, 2026

Frenzel and mouthfill solve the one problem that stops more beginner freedivers than fitness or fear ever does: equalising the ears under rising pressure.
Dec 5, 2024

Global Underwater Explorers standardises equipment, teaches in teams, tests fitness, and hands out provisional passes rather than certificates. It is the most divisive system in diving, and the most internally consistent.
Aug 12, 2026

Submersion triggers an ancient reflex that slows the heart, redirects blood, and quietly reshapes what a trained freediver's body can survive underwater.
Sep 18, 2024

Glasses do not fit under a mask, so the default answer is contact lenses. Eighty-five per cent of cases of a rare blinding corneal infection occurred in lens wearers who swam or dived in them, and there is a better option most divers never price.
Aug 20, 2026

A flooded mask is a nuisance to a diver who has cleared a hundred and a crisis to one who cleared three on the course. The difference is not technique. It is how many times the reflex has been overridden.
Oct 10, 2023

Divers Alert Network is not a training agency and issues no certifications. It collects the injury data, then publishes guidance based on it. Here is that guidance, in the order it matters.
Aug 12, 2026

Shallow water blackout does not warn its victim first. Here is the physiology behind it, why it strikes trained divers, and why solo breath hold diving is never safe.
Jun 10, 2024

Scuba has real hazards, but recreational diving within training and conditions is a managed-risk activity, not the extreme gamble suggested by rare accident headlines.
Jul 25, 2026

DAN warns that remote liveaboard incidents rose sharply in 2024-2025. Divers can reduce risk by checking oxygen, drills, charging rules, exits and evacuation plans before sailing.
Aug 2, 2026

A dive computer tracks pressure and time with precision, but the model behind it cannot see the diver wearing it. Here is what that gap actually means.
Mar 19, 2026

A war that closed the Strait of Hormuz and hit every GCC state should have broken the region's economics. Reserves and diversification kept it standing.
Jul 16, 2026

Research divers work under formal scientific diving safety standards, but a marine science background does not make deep or technical diving inherently safer to attempt.
Jun 14, 2026

Compact geography, shore access, wrecks and a new six-person hyperbaric unit make Gozo an unusually practical Mediterranean base for a mixed-experience dive trip.
Jul 25, 2026

Older than PADI, structured as a non-profit membership association, and built on a principle almost nobody else uses: the instructor may exceed the standards, and is expected to.
Aug 12, 2026

Drift diving turns a dive from a route into a ride. The techniques that make it safe are mostly about the surface and the boat, and the mistake that kills people is trying to fin against water that is stronger than they are.
Sep 5, 2026

Below about 15 degrees a thick wetsuit keeps a diver alive but not warm, and cold is a safety problem before it is a comfort one: it thickens judgment, wastes gas and makes the hands useless. The drysuit is a different way of diving, not a thicker suit.
Feb 4, 2025

The standard aluminium 80 is negatively buoyant full and positively buoyant empty, which is why safety stops go wrong at the end of a dive. Steel behaves differently, and the valve and testing rules differ too.
Sep 5, 2026

The agencies argue endlessly and the accident data barely distinguishes between them. Here is what genuinely differs, what does not, and the questions to ask a dive centre before you pay.
Aug 13, 2026

Descent equalisation is drilled into every open water student. Reverse block, where expanding gas cannot escape the middle ear or sinus on ascent, gets a sentence in the manual and is considerably harder to manage.
Sep 5, 2026

HEAD rescued Aqualung out of receivership with a 50 million euro package. The result is a single group holding four of diving's best known equipment names and SSI, the agency that certifies divers to use them.
Aug 18, 2026

Breathe-up, diaphragmatic breathing and the recovery breath are the three that matter. Hyperventilation is the one that removes your warning that you are about to black out.
Aug 10, 2026

DAN is a name every diver knows, but membership and dive accident insurance are not the same thing. Here is what each one actually buys you.
Jun 30, 2025

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

Protein went from fitness afterthought to grocery store obsession. Now it's in your cereal, ice cream, and pasta. Why did one nutrient consume America.
Jun 18, 2024

Two years of exaggerated curved legs are giving way to restrained shapes, brown washes and embellishment. The silhouette is not dead, it is being sanded down.
Aug 6, 2026

Divers call it the bends. Doctors call it decompression sickness. Here is what nitrogen bubbles actually do to tissue, and how hyperbaric treatment reverses it.
Feb 14, 2024

The PROTECT package treats drowning as a systems failure involving childcare, transport, infrastructure, rescue and climate preparation, not a single bad choice.
Jul 23, 2026

Solar, nuclear, storage, efficiency and hydrogen are being combined to support growth while building a more resilient and lower-carbon energy system.
Jul 28, 2026

A dark lens without ultraviolet filtering is worse than no lens, because the pupil opens behind it. The protection is a coating that costs pennies, the tint is a comfort choice, and polarisation solves glare while causing problems with screens.
Apr 22, 2026

Three thousand Dutch adults who ended their showers cold took fewer sick days. A 2025 review of eleven trials found stress fell twelve hours after a plunge and inflammation rose. What is known, what is marketing, and why the first minute can kill.
Sep 6, 2026

A record-high bid score, five host cities and a 92,000-seat stadium. Saudi Arabia's World Cup win is one piece of a much bigger plan.
Mar 14, 2025

80% of creative professionals now use generative AI in their workflow. But not for creating final work. Here's what designers actually do with it.
Dec 18, 2024

Dubai and Riyadh are hosting barista championships and single-origin tastings as third-wave coffee culture reshapes a region long defined by cardamom-spiced brews.
May 5, 2025

Sugar-glazed fruit skewers turned into a shop-opening frenzy across Korea in 2023, then collapsed almost as fast as the chains had multiplied.
Feb 5, 2026

Ten sports, existing venues and an indoor ceremony make Glasgow 2026 smaller by necessity, and perhaps a working model for an event that nearly lost its host.
Jul 23, 2026

A platform built on aspiration is rolling out AI assistants and automated ad tools, with Q2 revenue and user growth behind it. The pivot risks the thing that made it work.
Aug 6, 2026

The kingdom's sovereign fund and America's export credit agency have agreed a memorandum worth up to fifteen billion dollars. What it is not is a committed investment.
Aug 6, 2026
