A recent study conducted by scientists at the Universities of Arizona and Kansas suggests that working at a busy coffee shop may be healthier than doing so in a quiet office. The study finds — perhaps unsurprisingly — that loud noises at the office have a negative impact on employee well-being. But the study also suggests that complete silence is not conducive to a healthy workplace.

The sweet spot for office noise? About 50 decibels, roughly equivalent to birdsong or the pitter-patter of moderate rain.

“Everybody knows that loud noise is stressful, and, in fact, extremely loud noise is harmful to your ear,” said study co-author Esther Sternberg, director of the University of Arizona Institute on Place, Wellbeing &amp; Performance, adding, “But what was new about this is that with even low levels of sound — less than 50 decibels — the stress response is higher.”

The study — part of a larger workplace well-being research project led by Sternberg — suggests that if employers intend to build or redesign their office spaces with employee health and well-being in mind, they might want to consult acoustical engineers who can help them dial in conditions for good environmental sound, said Sternberg, who is also director of research for the University of Arizona Andrew Weil Center for Integrative Medicine and a member of the university’s BIO5 Institute.

The study was published earlier this month in the journal Nature Digital Medicine. Sudha Ram, professor of management information systems at the Eller College of Management, is the study’s senior author. Karthik Srinivasan, an assistant professor at the University of Kansas, led the research when he was a doctoral student at Eller and is the paper’s lead author.

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“When we think about well-being, typically we think about emotional or mental well-being,” Srinivasan said, adding, “We hardly ever consider the physiological well-being or the actual ‘what’s happening in our body,’ which is also important to understand when we’re continuously exposed to environmental factors such as sound.”

Sternberg, who also holds a joint appointment in the College of Architecture, Planning and Landscape Architecture, is a renowned expert on the ways workspaces can influence physical and mental health. A study she led in 2018 showed employees who worked in open office seating — at desks that aren’t separated by partitions — had greater daytime activity levels and lower stress levels in the evening, after work hours, compared to workers in private offices and cubicles.

But open office spaces also come with a common complaint from people who work in them: noise. With this latest study, Sternberg and her co-authors shed more light on employees’ physiological reactions to office sound.

The new study was part of Sternberg’s larger research project — called Wellbuilt for Wellbeing — in partnership with the U.S. General Services Administration, the federal agency that oversees basic operations for all nonmilitary federal government buildings, including building and buying real estate, managing buildings’ operating systems, and managing government-wide reentry into the workplace amid the Covid-19 pandemic.

To measure the impact of sound on office workers, researchers asked 231 of the agency’s employees working in four buildings across the U.S. to wear two devices for three days. One device, worn around the neck, measured sound levels in the person’s work environment.

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Another, worn on the chest, measured participants’ physiological stress and relaxation levels, using heart rate variability, or the varying lengths of time between each heartbeat. The chest-worn monitors were designed by Aclima&nbsp;Inc., which also partnered with the study.

Heart rate variability is a direct result of breathing, Sternberg said: As a person inhales, his or her heart rate slightly increases, and it decreases as the person exhales, causing variability between heartbeats.

The more variable the space between heartbeats, the healthier the person is.

“One way to think of it is, the least-variable heart rhythm is a straight line,” Sternberg said, referring to a flatline on an electrocardiogram — a sign someone has died.

“You don’t want that – you want a variable heart rate,” Sternberg added.

The researchers measured heart rate variability alongside environmental sound and then used mathematical modelling to determine how changing sound levels affect a person’s physiological well-being.

Participants also answered questions sent to their smartphones about how they were feeling at random times throughout the day.

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The results showed that when a worker’s environmental sound level was above 50 decibels, each 10-decibel increase was related to a 1.9 per cent decrease in physiological well-being. But when office sound was lower than 50 decibels, each 10-decibel increase related to a 5.4% increase in physiological well-being.

Humans’ tendency to get distracted, Sternberg said, is a result of the brain’s stress response to potential threats. Our brains are ‘difference detectors’ that take note of sudden changes in sounds so we can decide to fight or flee, she said.

That may explain why low, steady sounds help mask distractions in the workplace, she added.

“People are always working in coffee shops – those are not quiet spaces. But the reason you can concentrate there is that the sounds all merge to become background noise,” Sternberg said, adding, “It masks sound that might be distracting. If you hear a pin drop when it’s very, very quiet, it will distract you from what you’re doing.”

The study, Sternberg said, offers precise data that can guide employers in designing office spaces to maximise employee well-being. Acoustical engineers already take great care in choosing or designing furniture, flooring, wall coverings and other aspects of spaces such as concert halls, recording studios and museums.

If employee health is a priority, Sternberg said, “There’s no reason why these simple interventions can’t be installed in office spaces to mitigate sound distraction.”&nbsp;

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A recent study conducted by scientists at the Universities of Arizona and Kansas suggests that working at a busy coffee shop may be healthier than doing so in a quiet office.

A recent study conducted by scientists at the Universities of Arizona and Kansas suggests that working at a busy coffee shop may be healthier than doing so in a quiet office. The study finds — perhaps unsurprisingly — that loud noises at the office have a negative impact on employee well-being. But the study also suggests that complete silence is not conducive to a healthy workplace. The sweet spot for office noise? About 50 decibels, roughly equivalent to birdsong or the pitter-patter of moderate rain. “Everybody knows that loud noise is stressful, and, in fact, extremely loud noise is harmful to your ear,” said study co-author Esther Sternberg, director of the University of Arizona Institute on Place, Wellbeing & Performance, adding, “But what was new about this is that with even low levels of sound — less than 50 decibels — the stress response is higher.” The study — part of a larger workplace well-being research project led by Sternberg — suggests that if employers intend to build or redesign their office spaces with employee health and well-being in mind, they might want to consult acoustical engineers who can help them dial in conditions for good environmental sound, said Sternberg, who is also director of research for the University of Arizona Andrew Weil Center for Integrative Medicine and a member of the university’s BIO5 Institute. The study was published earlier this month in the journal Nature Digital Medicine. Sudha Ram, professor of management information systems at the Eller College of Management, is the study’s senior author. Karthik Srinivasan, an assistant professor at the University of Kansas, led the research when he was a doctoral student at Eller and is the paper’s lead author. Also read: Expert reveals why some people suffer from distorted vision while driving “When we think about well-being, typically we think about emotional or mental well-being,” Srinivasan said, adding, “We hardly ever consider the physiological well-being or the actual ‘what’s happening in our body,’ which is also important to understand when we’re continuously exposed to environmental factors such as sound.” Sternberg, who also holds a joint appointment in the College of Architecture, Planning and Landscape Architecture, is a renowned expert on the ways workspaces can influence physical and mental health. A study she led in 2018 showed employees who worked in open office seating — at desks that aren’t separated by partitions — had greater daytime activity levels and lower stress levels in the evening, after work hours, compared to workers in private offices and cubicles. But open office spaces also come with a common complaint from people who work in them: noise. With this latest study, Sternberg and her co-authors shed more light on employees’ physiological reactions to office sound. The new study was part of Sternberg’s larger research project — called Wellbuilt for Wellbeing — in partnership with the U.S. General Services Administration, the federal agency that oversees basic operations for all nonmilitary federal government buildings, including building and buying real estate, managing buildings’ operating systems, and managing government-wide reentry into the workplace amid the Covid-19 pandemic. To measure the impact of sound on office workers, researchers asked 231 of the agency’s employees working in four buildings across the U.S. to wear two devices for three days. One device, worn around the neck, measured sound levels in the person’s work environment. Also read: ‘Extremely rare’ chandelier once bought by UK artist for $310 to be sold for more than $8 million Another, worn on the chest, measured participants’ physiological stress and relaxation levels, using heart rate variability, or the varying lengths of time between each heartbeat. The chest-worn monitors were designed by Aclima Inc., which also partnered with the study. Heart rate variability is a direct result of breathing, Sternberg said: As a person inhales, his or her heart rate slightly increases, and it decreases as the person exhales, causing variability between heartbeats. The more variable the space between heartbeats, the healthier the person is. “One way to think of it is, the least-variable heart rhythm is a straight line,” Sternberg said, referring to a flatline on an electrocardiogram — a sign someone has died. “You don’t want that – you want a variable heart rate,” Sternberg added. The researchers measured heart rate variability alongside environmental sound and then used mathematical modelling to determine how changing sound levels affect a person’s physiological well-being. Participants also answered questions sent to their smartphones about how they were feeling at random times throughout the day. Also read: Research explains why high fat diet could reduce brain’s ability to regulate food intake The results showed that when a worker’s environmental sound level was above 50 decibels, each 10-decibel increase was related to a 1.9 per cent decrease in physiological well-being. But when office sound was lower than 50 decibels, each 10-decibel increase related to a 5.4% increase in physiological well-being. Humans’ tendency to get distracted, Sternberg said, is a result of the brain’s stress response to potential threats. Our brains are ‘difference detectors’ that take note of sudden changes in sounds so we can decide to fight or flee, she said. That may explain why low, steady sounds help mask distractions in the workplace, she added. “People are always working in coffee shops – those are not quiet spaces. But the reason you can concentrate there is that the sounds all merge to become background noise,” Sternberg said, adding, “It masks sound that might be distracting. If you hear a pin drop when it’s very, very quiet, it will distract you from what you’re doing.” The study, Sternberg said, offers precise data that can guide employers in designing office spaces to maximise employee well-being. Acoustical engineers already take great care in choosing or designing furniture, flooring, wall coverings and other aspects of spaces such as concert halls, recording studios and museums. If employee health is a priority, Sternberg said, “There’s no reason why these simple interventions can’t be installed in office spaces to mitigate sound distraction.” WATCH WION LIVE HERE You can now write for wionews.com and be a part of the community. Share your stories and opinions with us here.

Key to healthier employees might be quieter or louder office space: Study

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Key to healthier employees might be quieter or louder office space: Study