DIR is a holistic approach to your diving mentality, diving fitness level, gear configuration, and right attitude. DIR promotes a certain physical and mental readiness to dive by having the right attitude and fitness level to dive safely. DIR focuses on a buddy team approach, which provides redundancy for the most important piece of dive [...]

by Tim Peever Some Physiological Factors and Possible Controls of Oxygen Toxicity Oxygen Toxicity manifests itself in two ways, pulmonary oxygen toxicity and central nervous system (CNS) oxygen toxicity. Of these, CNS oxygen toxicity is the most serious concern to scuba divers. Pulmonary oxygen toxicity involves attack on the gas transfer membranes in the lungs [...]

by David Miner Stress is a medical term for a wide range of strong external stimuli, both physiological and psychological, which can cause a physiological response called the general adaptation syndrome, first described in 1936 by Hans Selye in the journal Nature. As we all know, stress surfaces in our everyday lives and can affect [...]

A deep look at new species! by Richard L. Pyle I awoke in my London hotel room sticky with sweat; the mid-July heat mitigated only by an oscillating fan. I pushed aside the mosquito netting that surrounded my bed and glanced outside the window to get a sense for the weather. We had been up [...]

by David Miner Standard drift diving is a specialized form of boat diving allowing you to drift with the underwater currents during your entire dive. The boat is never anchored or moored and follows the group of divers the entire time. The different types of drift diving are: float drift and live boat drift. Float [...]