Dive Into Success: Master the SDI Open Water Scuba Diver Exam 2025 – Make Waves with Confidence!

A deep dive is considered riskier primarily due to the increased exposure to pressure and higher nitrogen absorption that occurs at greater depths. As a diver descends, the ambient pressure significantly increases, which can lead to various physiological effects on the body.

With the increase in pressure, the body absorbs more nitrogen from the breathing gas. This elevated nitrogen absorption raises the risk of decompression sickness, or "the bends," when ascending too quickly without allowing time for the nitrogen to safely leave the body. The deeper a dive goes, the more cautious a diver must be about managing ascent rates and performing safety stops to allow nitrogen to be released gradually.

While factors like navigation challenges, reduced light, or the presence of marine predators can certainly add elements of risk to a dive, they do not fundamentally alter the physical effects that increased pressure and nitrogen levels have on the body. Thus, the primary concern in terms of safety and health during deep dives is tied directly to these physiological factors.