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Yes, if it hurts it's dangerous. But you can equalize the pressure to avoid it. Many methods, see https://en.wikipedia.org/wiki/Ear_clearing https://en.wikipedi

Yes, if it hurts it's dangerous. But you can equalize the pressure to avoid it. Many methods, see https://en.wikipedia.org/wiki/Ear_clearing https://en.wikipedia.org/wiki/Ear_clearing A tip is to equalize very often on the way down, even before you feel it. When you feel it, your tubes are shut closed from the pressure so it's too late. Valsave is the easiest to learn (pinch your nose and blow) No, no bends. Unless you have been diving scuba earlier the same day. As you don't breathe deep down, only bring air from the surface in your longs, it won't happen. What you should be worried about is shallow water blackout when ascending. So never hyperventilate, never push your limits, and never dive alone. Limits to breath holding should be pushed on land instead.

curun1r 8y ago
> No, no bends. Unless you have been diving scuba earlier the same day. As you don't breathe deep down, only bring air from the surface in your longs, it won't happen. Freedivers can have nitrogen absorption issues if they make too many dives in too short a period. A good freediving computer will alert you when you're approaching your limits. What makes it less of an issue than for scuba divers is less the not breathing at depth part and more the spending less time at depth part. Even a scuba diver would have fewer nitrogen absorption issues if they only spent a few minutes at depth. You're also missing the nitrogen narcosis danger, and freedivers have more narcosis issues than recreational divers because of the greater depths. Everything in your last paragraph is sage advice, though you can push your breath hold limits at the surface or in a pool as long as you have a trained partner who knows how to handle a blackout. Static holds need to be trained wet before deep diving and dynamic holds can be safely trained horizontally to take pressure changes out of the equation.

curun1r 8y ago

> No, no bends. Unless you have been diving scuba earlier the same day. As you don't breathe deep down, only bring air from the surface in your longs, it won't happen. Freedivers can have nitrogen absorption issues if they make too many dives in too short a period. A good freediving computer will alert you when you're approaching your limits. What makes it less of an issue than for scuba divers is less the not breathing at depth part and more the spending less time at depth part. Even a scuba diver would have fewer nitrogen absorption issues if they only spent a few minutes at depth. You're also missing the nitrogen narcosis danger, and freedivers have more narcosis issues than recreational divers because of the greater depths. Everything in your last paragraph is sage advice, though you can push your breath hold limits at the surface or in a pool as long as you have a trained partner who knows how to handle a blackout. Static holds need to be trained wet before deep diving and dynamic holds can be safely trained horizontally to take pressure changes out of the equation.