Health
Pain could be reduced by watching nature scenes, new study suggests
Scientists have long suspected that exposure to nature may reduce people’s experience of pain, and now there may be research to prove it.
A new study led by a team from the University of Vienna and the University of Exeter, which was published in the journal Nature Communications, revealed that nature not only relieves psychological symptoms of pain, but also affects the pain centers of the brain, as reported by SWNS.
This discovery could lead to further progress in the exploration of non-pharmaceutical pain treatments, according to the researchers.
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In the study, 49 healthy adults sat inside an fMRI scanner — a machine that monitors brain activity — while they received mild electric shocks.
Participants received electric shocks while exposed to three different scenes: nature, urban and a control image of a nondescript room. (Katielee Arrowsmith / SWNS)
Screens shown to the participants displayed three different images: a nature scene, an urban scene and a control scene of a nondescript room. Their brains were then checked to see if there was a difference in how much pain they experienced when viewing each scene, SWNS reported.
The researchers then used advanced machine learning to analyze raw sensory signals that the brain receives during periods of physical pain. Results showed that these signals were reduced when participants were exposed to nature scenes.
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This could mean that nature’s pain-relieving effects are not just due to the participants being more relaxed, but that they actually alter the brain’s pain-sensing pathways, according to the researchers.
The study revealed that exposure to nature has a physical effect on the brain’s pain-sensing pathways. (Katielee Arrowsmith / SWNS)
This research deepened a pre-existing understanding of how nature can affect symptoms of pain, according to University of Vienna PhD student Max Steininger, the lead author of the study.
“Numerous studies have shown that people consistently report feeling less pain when exposed to nature,” he was quoted as saying in a press release from the University of Exeter.
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This study supports previous research that suggested similar findings.
Forty years ago, American researcher Roger Ulrich studied how hospital patients used fewer painkillers and had faster recoveries when their windows overlooked a green space with trees compared to those who looked out at a brick wall, the release stated.
“Numerous studies have shown that people consistently report feeling less pain when exposed to nature,” stated the lead study author. (Katielee Arrowsmith / SWNS)
“Our study is the first to provide evidence from brain scans that this isn’t just a ‘placebo’ effect – driven by people’s beliefs and expectations that nature is good for them,” said Steininger.
“Instead, the brain is reacting less to information about where the pain is coming from and how intense it feels.”
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These findings suggest that the pain-relieving effect of nature is genuine, although still significantly less than traditional painkillers.
Those involved in the study hope to incorporate alternatives, like experiencing nature, to improve overall pain management strategies.
The study highlights how even virtual encounters with nature may be beneficial for pain management. (Katielee Arrowsmith / SWNS)
Dr. Alex Smalley, a co-author from the University of Exeter, noted that virtual encounters can bring the healing potential of nature to people when they can’t get outside.
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“But we hope our results also serve as renewed evidence of the importance of protecting healthy and functioning natural environments, encouraging people to spend time in nature for the benefit of both the planet and people,” he said in the press release.
He added, “The fact that this pain-relieving effect can be achieved through virtual nature exposure, which is easy to administer, has important practical implications for non-drug treatments, and opens new avenues for research to better understand how nature impacts our minds.”
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A new report by the American Heart Association (AHA) included some troubling predictions for the future of women’s health.
The forecast, published in the journal Circulation on Wednesday, projected increases in various comorbidities in American females by 2050.
More than 59% of women were predicted to have high blood pressure, up from less than 49% currently.
The review also projected that more than 25% of women will have diabetes, compared to about 15% today, and more than 61% will have obesity, compared to 44% currently.
As a result of these risk factors, the prevalence of cardiovascular disease and stroke is expected to rise to 14.4% from 10.7%.
The prevalence of cardiovascular disease and stroke in women is expected to rise to 14.4% from 10.7% by 2050. (iStock)
Not all trends were negative, as unhealthy cholesterol prevalence is expected to drop to about 22% from more than 42% today, the report stated.
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Dr. Elizabeth Klodas, a cardiologist and founder of Step One Foods in Minnesota, commented on these “jarring findings.”
“The fact that on our current trajectory, cardiometabolic disease is projected to explode in women within one generation should be a huge wake-up call,” she told Fox News Digital.
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“Hypertension, diabetes, obesity — these are all major risk factors for heart disease, and we are already seeing what those risks are driving. Heart disease is the No. 1 killer of women, eclipsing all other causes of death, including breast cancer.”
Cardiovascular disease is the leading cause of death for women in the U.S. and around the world. (iStock)
Klodas warned that heart disease starts early, progresses “stealthily,” and can present “out of the blue in devastating ways.”
The AHA published another study on Thursday revealing one million hospitalizations, showing that heart attack deaths are climbing among adults below the age of 55.
The more alarming finding, according to Klodas, is that young women were found more likely to die after their first heart attack than men of the same age.
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“This is all especially tragic since heart disease is almost entirely preventable,” she said. “The earlier you start, the better.”
Children can show early evidence of plaque deposition in their arteries, which can be reversed through lifestyle changes if “undertaken early enough and aggressively enough,” according to the expert.
Moving more is one part of protecting a healthy heart, according to experts. (iStock)
Klodas suggested that rising heart conditions are associated with traditional risk factors, like smoking, high blood pressure, high cholesterol, diabetes, obesity and a sedentary lifestyle.
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Doctors are also seeing higher rates of preeclampsia, or high blood pressure during pregnancy, as well as gestational diabetes. Klodas noted that these are sex-specific risk factors that don’t typically contribute to complications until after menopause.
The best way to protect a healthy heart is to “do the basics,” Klodas recommended, including the following lifestyle habits.
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Klodas especially emphasized making improvements to diet, as the food people eat affects “every single risk factor that the AHA’s report highlights.”
“High blood pressure, high blood sugar, high cholesterol, excess weight – these are all conditions that are driven in part or in whole by food,” she said. “We eat multiple times every single day, which means what we eat has profound cumulative effects over time.”
“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health,” a doctor said. (iStock)
“Even a small improvement in dietary intake, when maintained, can have a massive positive impact on health.”
The doctor also recommends changing out a few snacks per day for healthier choices, which has been proven to “yield medication-level cholesterol reductions” in a month.
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“Keep up that small change and, over the course of a year, you could also lose 20 pounds and reduce your sodium intake enough to avoid blood pressure-lowering medications,” Klodas added.
“Women should not view the AHA report as inevitable. We have power over our health destinies. We just need to use it.”
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Nearsightedness (myopia) is skyrocketing globally, with nearly half of the world’s population expected to be myopic by 2050, according to the World Health Organization.
Heavy use of smartphones and other devices is associated with an 80% higher risk of myopia when combined with excessive computer use, but a new study suggests that dim indoor lighting could also be a factor.
For years, scientists have been puzzled by the different ways myopia is triggered. In lab settings, it can be induced by blurring vision or using different lenses. Conversely, it can be slowed by something as simple as spending time outdoors, research suggests.
Nearsightedness occurs when the eyeball grows too long from front to back, according to the American Optometric Association (AOA). This physical elongation causes light to focus in front of the retina rather than directly on it, making distant objects appear blurry.
The study suggests that myopia isn’t caused by the digital devices themselves, but by the low-light environments where they are typically used. (iStock)
Researchers at the State University of New York (SUNY) College of Optometry identified a potential specific trigger for this growth. When someone looks at a phone or a book up close, the pupil naturally constricts.
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“In bright outdoor light, the pupil constricts to protect the eye while still allowing ample light to reach the retina,” Urusha Maharjan, a SUNY Optometry doctoral student who conducted the study, said in a press release.
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“When people focus on close objects indoors, such as phones, tablets or books, the pupil can also constrict — not because of brightness, but to sharpen the image,” she went on. “In dim lighting, this combination may significantly reduce retinal illumination.”
High-intensity natural light prevents myopia because it provides enough retinal stimulation to override the “stop growing” signal, even when pupils are constricted. (iStock)
The hypothesis suggests that when the retina is deprived of light during extended close-up work, it sends a signal for the eye to grow.
In a dim environment, the narrowed pupil allows so little light through that the retinal activity isn’t strong enough to signal the eye to stop growing, the researchers found.
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In contrast, being outdoors provides light levels much brighter than indoors. This ensures that even when the pupil narrows to focus on a nearby object, the retina still receives a strong signal, maintaining healthy eye development.
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The team noted some limitations of the study, including the small subject group and the inability to directly measure internal lens changes, as the bright backgrounds used to mimic the outdoors made pupils too small for standard equipment.
Researchers believe that increasing indoor brightness during close-up work could be a simple, testable way to slow the global nearsightedness epidemic. (iStock)
“This is not a final answer,” Jose-Manuel Alonso, MD, PhD, SUNY distinguished professor and senior author of the study, said in the release.
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“But the study offers a testable hypothesis that reframes how visual habits, lighting and eye focusing interact.”
The study was published in the journal Cell Reports.
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