Diet-induced changes in the human bite resulted in new sounds such as 'f' in languages all over the world, a study by an international team led by researchers at the University of Zurich has shown. The findings contradict the theory that the range of human sounds has remained fixed throughout human history.
The popular view that music enhances creativity has been challenged by researchers who say it has the opposite effect. Psychologists investigated the impact of background music on performance by presenting people with verbal insight problems that are believed to tap creativity. They found that background music 'significantly impaired' people's ability to complete tasks testing verbal creativity -- but there was no effect for background library noise.
Researchers have tested the sounds made by six different acoustic guitars in a study addressing the effects of the type of wood used in their construction. Some of the woods used for guitar backs are revered by guitar players for their acoustic qualities, and are claimed to be tonally superior to other woods. Unfortunately many of these woods are expensive, rare, and from unsustainable sources.
A new study links hearing loss with an increased risk for mortality before the age of 75 due to cardiovascular disease. Researchers found that mortality among those with hearing loss is elevated, particularly among men and women younger than age 75 and those who are divorced or separated. However, mortality risk was diminished in adults with a well-hearing partner. This is the first study to investigate the combined effects of hearing loss with partnership, parental status, and increased mortality risk.
Long term exposure to road traffic noise is associated with increased risk of obesity. This was the conclusion of a study involving the participation of the Barcelona Institute for Global Health (ISGlobal). The study has been published in Environment International.
Many individuals use music in the hope that it fights sleep difficulties, according to a study published Nov. 14 in the open-access journal PLOS ONE by Tabitha Trahan of the University of Sheffield, UK, and colleagues. As described by the authors, this is the first online survey on the use of music as a sleep aid in the general population.
One concern with the increase vessel transits in the western Canadian Arctic is how noise pollution can detrimentally affect marine animals. Researchers at the University of Victoria, WCS Canada and JASCO Applied Sciences have found that the negative impact of noise from shipping vessels can be mitigated by reducing the ship's speed. They will present their research at the Acoustical Society of America's 176th Meeting, Nov. 5-9.
Air pollution and transportation noise are both associated with an increased risk of heart attacks. Studies on air pollution, which do not take into account traffic noise, tend to overestimate the long-term effect of air pollution on heart attacks. These are the results of a study conducted by the Swiss Tropical and Public Health Institute, and published today in the European Heart Journal.
Male humpback whales reduce or cease their songs in reaction to human-generated shipping noise, according to a study published Oct. 24, 2018 in the open-access journal PLOS ONE by Koki Tsujii from Ogasawara Whale Watching Association and Hokkaido University, Japan, and colleagues.
Familiar voices are easier to understand and this advantage holds even if when we aren't able to identify who those familiar voices belong to, according to research in Psychological Science, a journal of the Association for Psychological Science.