Nurtle on Instagram: "Deep sea diving exposes the human body to extreme pressure, forcing nitrogen from breathing gas to dissolve into the blood and tissues. The deeper and longer a diver stays down, the more nitrogen builds up. If a diver surfaces too fast, that nitrogen can form bubbles inside the body, a condition known as decompression sickness. These bubbles can block blood flow, damage nerves, cause paralysis, or become fatal. That is why divers returning from extreme depths are rushed int