Many studies have focused on the detrimental
effects on human health caused by exposure to high intensity
noise. Now scientists have turned their attention to low
level, but chronic noise that we are all exposed to daily. A
new study
by a Cornel University environmental psychologist has
indicated that people experience higher levels of stress
when exposed to constant low level noise that could be found
in almost any office environment. Anything that leads to
increased levels of stress and blood pressure can have
serious long-term health effects.
Another
study that targeted children found that low-level
everyday noise could cause stress in children. The
physiological manifestations of the stress, raised blood
pressure, heart rates and levels of stress hormones. The
result was a higher level of anxiety and lower motivation.
Studies such as these have raised the
awareness of designers and engineers to the ill effects of
chronic exposure to low level noise (like the hum of the
computer you are using right now). When designing a car or
the arrangement of an office building, technologies
should be considered that would deaden any chronic
background noise.
Noise
reduction technology is used in many areas already. All
types of manufacturers, from cars to dishwashers,
are attempting to design machines that run quieter.
Consumers want to listen to a CD, not the roar of the engine
or the noise of the tires. You would like to talk on the
phone, or be able to concentrate on a book while the
dishwasher works to clean your supper dishes. Depending on
how much you pay, you can buy a quieter car or dishwasher
thanks to noise
reduction technology.
