Lockjaw is also a dangerous threat, occurring when nitrogen enters the body and disrupts the nervous system, making the diver lose complete control of his motor coordination. As to how to check the problem of depth, Chairman Hsieh points out, "Scuba gear itself has buoyancy.
嚴重的，還會有「氮醉」的現象﹘﹘氮氣溶入人體，對神經系統發生麻醉作用，使人自製力、判斷力降低，不知不覺地手舞足蹈，像喝醉酒一樣。如何控制所在的「深度」呢？