Final answer:
Spring board diving can lead to serious injuries and decompression sickness if not approached with the knowledge of diving risks, such as shallow water impact and rapid ascent. Divers must also understand visual distortions underwater and the principles of buoyancy and pressure to dive safely.
Step-by-step explanation:
Spring board diving is considered dangerous due to the risks associated with miscalculating dives and the physics of water impact. Ignoring warnings such as "no diving" signs can result in serious injuries to the nervous system, especially when diving into shallow water.
Moreover, divers, including those engaging in scuba diving, must be cautious of decompression sickness (DCS). As divers ascend, ambient pressure decreases, and dissolved gases become less soluble. If they rise too rapidly, these gases can form bubbles in the bloodstream, leading to severe symptoms such as rashes, joint pain, paralysis, and even death. To reduce DCS risk, divers should ascend slowly, at 10 or 20 meters per minute, and make decompression stops. Failing to do so might require treatment in hyperbaric oxygen therapy chambers.
Another factor is the visual distortion under water, where objects appear shallower than they are, potentially leading people to sustain neck and spinal injuries by diving into depths that are insufficient for safe diving. Understanding the principles of buoyancy, pressure equalization, and how pressurized gases behave in the body is also essential for safety.