apnea

Last weekend I witnessed an (unofficial) world record: My friend Emil Lars blowing 90 bubbles with one (!) inhalation. Thanks to Emil and Laura Pearce for the footage, in the video below I explain how it is even possible for humans to control their breathing underwater to such a degree, also...

I made a brief video about the neurobiology of holding your breath. In brief, two regions in the brain stem, the pre-Bötzinger complex and the retinotrapezoid nucleus are mainly responsible for automatic breathing. The motor cortex and the cerebellum are the regions responsible for willfully...

I am looking for some instruction-books, videos, etc.-that cover old fashioned snorkeling to depths of 30-50 feet. I just want to review techniques to stay down longer. Everything I find is on free diving. I am not interested in free diving. I just want to swim to a reef for a couple of minutes...

I am looking for some instruction-books, videos, etc.-that cover old fashioned snorkeling to depths of 30-50 feet. I just want to review techniques to stay down longer. Everything I find is on free diving. I am not interested in free diving. I just want to swim to a reef for a couple of minutes...

Dear Scubaboard Community, I'd like to let you know that my latest popular science book with relevance to diving is available as of today! The popular science book “Gehirn Extrem” describes extreme brain states, both from a subjective as well as from a scientific/neurobiological point of...

Hi everybody! My name is Meghan, and I am a student at UC Berkeley studying Environmental Sciences and Justice & Sustainability. I'm originally from the midwest but I'm here for the next few years to finish up undergrad. I'm certified open water scuba and free diver level 1. I was seriously...

We don’t know many freedivers who logged their session. Could be because there are not many ready made logbook available in the market for freedivers. SSI Freediving do have freedive logbook for the students can be purchased. Not sure about other agencies. Mainly, if you freedive and you want to...

Here's a video I pulled together for a spearfishing video competition. I spearfish mostly in the lakes nearby although the Baltic Sea is brackish and has almost the same fish species as the lakes. This film was shot during the summer 2015 and these are my favorite catches. I fish while...

Looking for illumination on a concern regarding my potentially broken or warped co2 sensor from apnea training in combination with deeper or more strenuous OC diving. My background is pleasure freediving and now that I'm getting more conscientious as a scuba diver I'm concerned with my apnea...