It's psychological rather than physiological. Your state of mind increases your breathing rate.>Is it just me with my particular physiology that don't like the fast descents or adjust/adapt/reacts slower ?
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It's psychological rather than physiological. Your state of mind increases your breathing rate.>Is it just me with my particular physiology that don't like the fast descents or adjust/adapt/reacts slower ?
So, anxiety doesn't increase the breathing rate?CO2 in the lungs dictates breathing rate/demand. There's nothing psychological about it.
How are you descending?
I can descend about 170 feet per minute when making a free descent in clear water with no reference, but I also allow myself to get heavy on descent and try to limit my inhalations to less than maximum until i have reached a good freefall speed. A streamlined vertical position is also important in minimizing exertion and maximizing descent speed. Freedive fins help too, if you can't afford a scooter.
I can tell you exactly what's happening here, but it's not the answer you wanna hear:
You get nervous because deep decends are new to you - feeling uncomfortable increases your breathing rate, both of which enhances the narcosis (whether you're aware of it or not, tunnel vision at 30m tells me you're narced, it doesn't really matter whether it's caused by N2 or CO2 at this point) - being on air below 50m/170' with little to no prior deep air experience doesn't help in that situation.
I'm not saying any of the other posts were wrong, but I can almost garantee you, the anxiety is caused by the lack of experience, making the anxiety the crux of the issue.
Here is what you can do about it:
Do a few decends to 30m or 40m and see how it feels and only dive deeper once you feel 100% comfortable. Than do a couple of dive to 45ish, how does that go? Than 48 or 50... but don't progress to the deeper decends until you have this stuff down.
Nobody said, 'less than 100 dives and you will die'; however, a bunch of people HAVE killed themselves diving deep or air! Starting out anxious 'occupies' part of your mind and stress factors like these can greatly decrease you metal capacity. The amount of dives is less important than the level of comfortability. Being aware of your metal state is important.
I know you said you don't want this answer, but it doesn't work that way... it is what is. It take time.
Duh, that's what happens when you inexperienced, dude! It's normal. That's why you're supposed progress slowly!and when going fast it has been uncomfortable, heavy breathing, anxious or whatever it can be called.
Point scooter toward the bottom. Pull trigger.