Re: Advice on spearfishing alone
My understanding of taking the snorkel out of your mouth when diving is that it's actually the purge at the surface when you are done with your dive that can increase the likeliness of SWB or Samba. The sudden violent emptying of the lungs can cause a drop in both blood pressure and oxygenation that can put someone over the edge. The goal is to take a deep controlled breath at the surface which typically means letting a controlled exhale out right before surfacing.
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