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6 stories for“sinuses”
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
Saline nasal irrigation has reasonable evidence behind it for sinus symptoms. It also has a rare, almost uniformly fatal complication, and avoiding it requires one specific instruction that most people have never been given.
Sep 4, 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
Coughing pink after a deep dive is not something to shrug off. Squeeze happens when tissue cannot keep up with pressure, and the usual causes are tension, forcing equalisation and pushing depth too fast.
Aug 13, 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
The current constant weight world records, the athletes behind them, and the federations, AIDA and CMAS, that ratify every metre added to the books.
Jan 15, 2026
