Tinnitus masker issues associated with use of tinnitus maskers: the "safe" level of continuous sound depends on the duration of the sound. For maskers worn continuously, or most of the day, a safe level is no more than 70db, in accordance with EPA maximum safe exposure level for 24-hour environmental sound. Maskers louder than 45db or so (the ambient background level of an average home living area) may start to interfere with understanding conversation (about 60db). Masking of high frequency tinnitus (>6,000hz) is difficult because of the resonance characteristics of the human ear as well as high frequency limitations of in-ear devices.
Effects of advertising on teen body image Effects of advertising on teen body image The effects of advertising on body image have been studied by researchers, ranging from psychologists to marketing professionals. "These days we know that the media and body image are closely related. Particularly, the body image advertising portrays affects our own body image. Of course, there are many other things that influence our body image: parenting, education, intimate relationships, and so on. The popular media does have a big impact, though" This is because thousands of advertisements contain messages about physical attractiveness and beauty, examples of which include commercials for clothes, cosmetics, weight reduction,