Hyperventilation
What is HyperventilationHyperventilation is the breathing response kicked off by chemical changes in the blood such as high CO2 or low oxygen level. It can also be set off by…
Marijuana Effects on Divers
Some general effects of smoking marijuana:· The more marijuana is used, the shorter its effects last.· Tolerance to the psychoactive effects develops with continued use.· Psychological and mild physical dependence…
Alcohol and Diving
Beer While Diving?Some divers insist on drinking beer before, during and after their dives. Is there any danger in drinking alcoholic beverages and diving? The short answer is that by…
Dehydration and Diving
Dehydration DefinedDehydration means your body does not have as much water and fluids as it should. Dehydration can be caused by losing too much fluid, not drinking enough water or…
Vertigo
Vertigo or Dizziness?True vertigo or inner ear balance disturbance is often confused with other vague problems with balance such as dizziness, lightheadedness, fainting, swaying or overbreathing. The differentiation is sometimes…
Dental Distress
The 'Diving Dentist' Addresses the Problem of a Diving-Related Toothacheby Laurence Stein, DDSReprinted from Alert Diver, January-February 2000, pp 45-49.With permission from DAN and Laurance Stein, DDS(Edited)Although not a common…
35 Diving Myths
BY DR. JOLIE BOOKSPANMisinformation can be fun on April Fool's, but not in diving. Here are 35 of the most common divers' myths, mistakes, and mix-ups about gases, heat, cold,…