Exhausted Women are Hypersensitive to Sound

Apparently it's too loud in here by Steve HallFYI, guys, if an exhausted woman is stressed out, keep the noise level to a minimum.

According a study from Karolinska Institutet and Stockholm University’s Stress Research Institute, women suffering from stress-related exhaustion show hypersensitivity to sounds.

The study exposed 208 women and 140 men, ages 23 to 71–all emotionally exhausted–to five minutes of physical stress, such as hands in ice, mental stress tests, and observational stress.

The researchers found that exhausted women found sounds–some as low as 60 decibel (level of normal conversation)–more uncomfortably loud than non-exhausted women. The same results were found in men, but the differences weren’t statistically significant. The researchers say that there was no difference in sensitivity to sounds between the groups before the stress exposure.

“When you are hypersensitive to sound, some normal sounds, such as the rattle of cutlery or the sound of a car engine, can feel ear-piercing,” said Dan Hasson, associate professor at Karolinska Institutet’s Department of Physiology and Pharmacology and affiliated with Stockholm University’s Stress Research Institute. “Given how common it is for people to work in environments with different kinds of disturbing sounds, this hypersensitivity can be really disabling for certain individuals.”

Do sounds disable you when you’re exhausted?

(Image via Flickr: Steve Hall / Creative Commons)

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How Negative News Affects Women

I have worn down the treads on all of my tires...by Phoney NickleWomen and men react differently when it comes to bad news. According to a study from the University of Montreal at the Centre for Studies on Human Stress of Louis-H. Lafontaine Hospital, women’s sensitivity to stressful situations increases after being subjected to negative news. The same negative news doesn’t affect men. The women, though, were better able to recollect what they had learn more so than the men.

“It’s difficult to avoid the news, considering the multitude of news sources out there,” said lead author Marie-France Marin. “And what if all that news was bad for us? It certainly looks like that could be the case.”

I’ll let the University of Montreal news center tell you the rest of the story:

The researchers asked 60 people divided into four groups to read actual news stories. In order to determine their stress levels, the researchers took samples of the participants’ saliva and analyzed them for a hormone called cortisol. Higher levels of this bodily chemical indicate higher levels of stress. A group of men and a group of women read “neutral” news stories, about subjects such as the opening of a new park or the premiere of a new film, while the another two gender segregated groups read negative stories, about events such as murders or accidents. Saliva samples were taken again in order to determine the effect of these news stories. “When our brain perceives a threatening situation, our bodies begin to produce stress hormones that enter the brain and may modulate memories of stressful or negative events,” explained Sonia Lupien, Director of the Centre for Studies on Human Stress and a professor at the university’s Department of Psychiatry. “This led us to believe that reading a negative news story should provoke the reader’s stress reaction.”

The participants were then confronted with a series of standardized tasks involving memory and intellect that enable researchers to evaluate and compare how people react to stressful situations. A final round of samples was then taken to determine the effects of this experience. Finally, the next day, the participants were called back to talk about what they had read. The researchers were surprised by what they found. “Although the news stories alone did not increase stress levels, they did make the women more reactive, affecting their physiological responses to later stressful situations,” Marin explained. The researchers discovered this when they saw that the level of cortisol in the women who have read the negative news was higher after the “stress” part of the experiment compared to the women who have read the neutral news. “Moreover, the women were able to remember more of the details of the negative stories. It is interesting to note that we did not observe this phenomenon amongst the male participants.”

The researchers believe that evolutionary factors may be at play, noting that other scientists have considered whether an emphasis on the survival of offspring may have influenced the evolution of the female stress system, leading women to be more empathetic. This theory would explain why women could be more susceptible to indirect threats. “More studies should be undertaken to better understand how gender, generational differences and other socio-cultural factors affect our experience, as individuals, of the negative information that perpetually surrounds us,” Marin said.

(Image via Flickr: Phoney Nickle / Creative Commons)

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