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Welcome to NJScuba.net, a website dedicated to exploring the New Jersey / New York region underwater -- "Wreck Valley". Here you will find information on dive sites, marine biology, artifacts and activities, gear and training, and many other subjects.

The menu changes depending on where you are. The search works very well - try it. The 'Random' link can take you anywhere. Pick a subject, and dive in !!!

You can easily get involved too - comments are open on all dive sites. Leave your trip reports and updates right there in the website. If you have something more you'd like to add, you can get in touch with me through the contact page.

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Diving Myths

From way back when in 1996 ...

NJ Scuba
Diving Myths
by Dr. Jolie Bookspan, author of Diving Physiology in Plain English

Myth 1 - The Dive Reflex Protects You

diving myths

In the dive reflex, heart rate and limb blood flow decrease. Careful science ( that means we didn't accidentally step on the thermisters ) shows time and again that the dive reflex does not reduce the need for oxygen underwater as it does in marine mammals. Field studies ( where you're allowed to step on the thermisters ) indicate that the dive reflex does not extend breath-holding time. Occasional cases of human survival after very cold water near-drowning are not due to the dive reflex. Cold is the likely mechanism behind the reduced metabolism that permits survival.

More: Diving Myths ...

Disclaimer:

I make no claim as to the accuracy, validity, or appropriateness of any information found in this website. I will not be responsible for the consequences of any action that is based upon information found here. Scuba diving is an adventure sport, and as always, you alone are responsible for your own safety and well being.

Copyright © 1996-2026 Rich Galiano
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