A. subtle B. conclusively C. increases D. as E. complicateF. preserve G. adjust to H. warning I. anxiety J. psychological K. annoyance L. immune M. consequently N. adapt O. identify Noise constitutes a real and present danger to people's health. Day and night, at home, at work, and at play, noise can produce serious physical and ______ stress. No one is ______ to this stress. Though we seem to ______ to noise by ignoring it, the ear, in fact, never closes and the body still responds--- sometimes with extreme tension--to a strange sound in the night.The ______ we feel when faced with noise is the most common outward disease of the stress building up inside us. The more ______ and more serious health hazards associated with the stress caused by noise traditionally hay been given much less attention. Neverthless, when we are annoyed or made irritable by noise, we should consider these symptoms fair ______ that other things may be happening to us, some of which may be damaging our health.Of all health hazards of noise, hearing loss is the most clearly observative and measurable by heal professionals. The other hazards are harder to ______ . For many of us, there may be a risk that exposure to the stress of noise ______ susceptibility to disease and infection. However, the link between noise and many disabilities or diseases has not yet been ______ demonstrated, and we tend to dismiss annoyance caused by noise ______ a price to pay for living in the modem world.