Jeroen is from Belgium. He is a passionate health-care provider working as an intensive care unit nurse, with a love for technical innovation, teaching and diving, and a former business owner in composites resins 3D-shaping for the nautical and entertainment industry.

Jeroen is perhaps best known to us in the freediving community in his role as freediving medic in some of the biggest freediving competitions in the world.
Today’s discussion is a wide-ranging and thorough exploration of freediving medical safety.

In this episode we discuss:

Jeroen is a freediver, intensive care unit nurse and freediving medic.
He also organises safety in a water stage movie studio in Brussels, working with some famous actors.
Prospecting the dive location.
Dealing with therapeutic use exemptions of drugs that could be detected on a doping test.
Rescue protocols for certain incidents.
The use of the pulse oximeter to detect problems in the diver.
Following up with athletes and incident reporting.
Doing scientific research, gathering information during competition periods.
Specific rescue protocols for black outs and squeezes / barotraumas, etc.
Most divers do not respond to the ‘Blow Tap Talk’ protocol after an underwater black out.
Training the other members of the freediving safety team.
The authority to stop the competition.
What is DCI (Decompression Illness)
Decompression sickness and arterial gas embolism (AGE). What is the difference?
How are these conditions treated?
The hot topic of in-water recompression as treatment.
There are no guaranteed safe decompression tables.
The use of breathing oxygen in-water after deep dives as a preventative measure to prevent DCI and as general recovery.
Shout out to the Patreon supporters and thanks for contributing your questions.
An example of the individual nature of symptoms DCI cases.
Some examples of difficult decisions being made: Hanako Hirose, Petar Klovar
What is oedema?
The responsibilities of the freediving governing bodies to do better for the safety of the athletes.
What is a PFO (patent foramen ovale)?
Questions from Patreon supporters Tom, and Racso and Sean.
Should you ever dive alone?
Why does he freedive?

For freediving courses, workshops and retreats in Egypt and Europe visit www.truedepthfreediving.com!

For all episodes of the Freedive Cafe Podcast, visit www.freedivecafe.com

For freediving courses and training in Dahab, Egypt, visit www.freediveandthrive.com

To support on Patreon: www.patreon.com/freedivecafe

Tea Košnjek is a kinesiologist and a strength & conditioning coach working with Olympic-level swimmers and freedivers around the world.

From pool to depth disciplines, she helps athletes optimise their performance by focusing on strength, movement efficiency, and mastering technique.

Between 2018 and 2024, she was the technique and S&C coach for freediver Alenka Artnik, a multiple world champion and world record holder.

Tea continues to support a wide range of freedivers globally—both pool and depth—in unlocking their full potential through strength and technique training.

In this episode we discuss:

Tea is from Slovenia, and has a background in competitive swimming.
She studied kinesiology and started coaching strength and conditioning.
Tea was inspired to look further into freediving when she saw the dives on Diveye.
Tea collaborated with Alenka Artnik (episodes #57 and #154) for many years.
What does ‘training’ mean, actually?
What are the most unique aspects of training for freediving, compared to other sports?
What is periodisation and how to do it.
What can we do during the base training phase?
How gender differences influence training decisions.
About how periods affect hormones and therefore training.
Showing up for training, perceived exertion, mental condition and how it affects motivation.
Deloading before the competition or event.
Specific attention to each freediving discipline:

(See the video version of the podcast on the True Depth Freediving YouTube channel for videos of exercises)

FIM (Free Immersion)
CWTB (Bifins)
CWT (Monofin)
CNF (No Fins)

Comparing the depth disciplines to the pool versions.
Tracking training and progress and what to track.
How to recover from training.
Supplementation (protein, creatine, omega 3, vitamin D)
Sauna, cold plunges, foam rollers, etc.
Advice for coaches on how to motivate and encourage our athletes/coachees.
Tea’s services and Instagram.
DESERT ISLAND QUESTIONS - Patreon Exclusive Section
Why does she freedive?

For freediving courses, workshops and retreats in Egypt and Europe visit www.truedepthfreediving.com!

For all episodes of the Freedive Cafe Podcast, visit www.freedivecafe.com

For freediving courses and training in Dahab, Egypt, visit www.freediveandthrive.com

To support on Patreon: www.patreon.com/freedivecafe

Huang Hua Yang is a former farmer and the deepest freediving athlete from the beautiful country of Taiwan. One of the deepest men in the world, he shares his freediving story and philosophy with us.

In this episode we discuss:

Huayang joined us from Panglao, Philippines at the time of recording, where he was training for the Asian Freediving Cup.
Comparing conditions in Panglao and Taiwan.
Donny lived in Taiwan for ten years and started a freediving school there.
Huayang was a farmer from the countryside close to Taoyuan, before he came to freediving in 2011.
Talking of the beauty of Taiwan’s Orchid Island.
Shout out to Wayne and Yen at Weirdos Freediving and Wu How at Deep Soul.
Huayang took his first freediving course in 2015, possibly one of the first PADI freediving courses.
Huayang did his instructor course with JP Francois at Freediving Planet in Moalboal, Philippines.
A question from Patreon supporter Tom Way about the freediving scene in Taiwan.
Taiwanese diver Haixiang beats Alexey in DNF in competition.
About the future of freediving competitions and their taking place in Asia.
Huayang’s journey to depth and competitions.
Shout out to Huayang’s coach Theo-Patrick Fourcade.
What are the fundamentals of training for freediving for Huayang? How has it changed over time?
Does he see any major differences in the training philosophies of Western and Asian freedivers?
Comparing different training approaches of different coaches.
Different athletes need different approaches.
What does it take to dive deeper than 100m?
Huayang’s experience with lung squeeze and how to avoid it?
His experiences with narcosis, how does it feel?
The benefits of RV diving for training compressibility.
How a week of training looks like for him at the moment.
On teaching equalisation to speakers of different languages.
DESERT ISLAND QUESTIONS - PATREON EXCLUSIVE CONTENT
Why does he freedive?

For freediving courses, workshops and retreats in Egypt and Europe visit www.truedepthfreediving.com!

For all episodes of the Freedive Cafe Podcast, visit www.freedivecafe.com

For freediving courses and training in Dahab, Egypt, visit www.freediveandthrive.com

To support on Patreon: www.patreon.com/freedivecafe