Monday, August 10, 2026

 

Why a doctor saying 'it's normal' can backfire




University of California - San Diego






Doctors may think they're saying “Don't panic." But many patients hear "Don't bother" instead.

A new study from the University of California San Diego Rady School of Management suggests that when physicians try to reassure patients by saying their symptoms are “normal,” patients may actually infer that treatment isn't necessary – and become less inclined to seek it.

Published in Nature Human Behaviour, the findings held across 14 experiments involving 9,371 participants and a wide range of health conditions, from menopause and migraines to dental pain, seasonal allergies and elevated blood glucose levels. 

Why ‘normal’ can send the wrong message

The idea for the research grew from first author Seyi Lawal's interest in communication around menopause, where patients sometimes report feeling dismissed after being told disruptive symptoms are simply a normal part of aging. Could it be, she wondered, that doctors and patients were interpreting the same conversations differently?

To find out, the researchers conducted 14 studies involving members of the public and healthcare providers. Participants read realistic medical scenarios in which healthcare providers either described symptoms as "normal" or did not. The researchers then measured the participants' willingness to pursue treatment and compared it with what providers expected patients would do.

"Providers expected that normalizing a patient's symptoms would increase their treatment likelihood, or at worst have no impact, but patients actually reacted in the opposite way," said Lawal, a doctoral student at the UC San Diego Rady School of Management.

Doctors use "normal," it seems, to mean common and well understood. Patients often interpret it as meaning acceptable – or not worth treating.

Fixing the communication gap, making reassurance work

The findings come amid broader conversations about patients feeling dismissed in healthcare settings, sometimes described as “medical gaslighting.” The study identifies a communication gap that may contribute to those experiences, even when doctors are trying to help.

The good news is that miscommunication isn’t inevitable. The researchers also tested two simple ways to reduce it: pairing normalizing language with an explicit recommendation for treatment, and explaining that "normal" was meant in a statistical, not normative or prescriptive, sense. 

Both approaches helped close the communication gap.

"Doctors usually have a noble goal. They mean to ease anxiety, but somehow it backfires," said senior author On Amir, professor of marketing and holder of  the Wolfe Family Presidential Endowed Chair in Life Sciences Innovation and Entrepreneurship at the UC San Diego Rady School of Management. "Doctors shouldn’t stop reassuring patients. But they should make their meaning unmistakable.”

Co-author Brianna Chew, a doctoral student at the Rady School, said the same lesson applies to patients. Hearing that symptoms are “normal,” she said, shouldn't be taken to mean they are any less serious.

The key takeaway for patients: If you're unsure what your doctor means when they say a symptom is "normal," don't assume it means treatment isn't recommended and you should just live with it. Ask. 

Common symptoms can still deserve attention – and treatment.

Full study: “Reassurance through normalization inadvertently suppresses treatment.” 

The study was funded in part by the T. Denny Sanford Institute for Empathy and Compassion.

 

Barbie and Ken get a reality check after 30 years




Adelaide University
"Barbie Fashionista 107 (Malibu)" 

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Barbie Fashionista

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Credit: "Barbie Fashionista 107 (Malibu)" by moggymawee is licensed under CC BY 2.0.






She’s the blonde bombshell and he’s her square-jawed sidekick. But nearly 70 years after the impossibly perfect Barbie and Ken made their debut, a new study from Adelaide University and the UNSW Sydney shows the iconic pair are finally looking a little more like the rest of us.

Three decades after a landmark Australian study revealed Barbie and Ken’s body proportions were almost unattainable in real life, researchers have revisited the 1996 study and found that Barbie and Ken have undergone a remarkable transformation.

Using the same scientific methods as the original study*, researchers measured today’s Fashionista Barbie dolls – including Curvy, Tall, Petite and Standard Barbie – as well as the latest Ken doll, to determine how closely their body proportions match those of real adults.

The findings show that key body proportions, including waist-to-hip and chest-to-waist ratios, are now much closer to those seen in real populations.

Among the Fashionista range, Curvy Barbie most closely matched today’s average female body proportions, while the latest Ken also showed more realistic proportions than previous versions.

Lead researcher Associate Professor Sara Grafenauer from UNSW Medicine & Health said the findings show the toy industry has made measurable progress, with the new Barbie and Ken range reflecting greater body diversity.

“Barbie and Ken are among the most recognisable cultural icons globally, and for many children, they’re an early and influential representation of what bodies of adults ‘should’ look like,” Assoc Prof Grafenauer said.

“But traditional Barbie and Ken dolls have always had unrealistic and statistically improbable body shapes. In fact, the original dolls’ body shapes were so extreme that less than one in 10 million people could match their proportions.

“Our study found that Barbie and Ken’s body proportions today have become markedly more realistic, with waist-to-hip and chest-to-waist measurements now falling within the normal range for key female body proportions, albeit still below the typical female averages.

“Interestingly, while Ken’s overall body shape has become more realistic, some proportions ­– particularly his chest-to-waist ratio ­­remain less representative of the average man.”

Research has consistently shown that exposure to unrealistic body ideals can influence body image, expectations, and even health behaviours, particularly among children and teens.

Co-researcher, and author of the 1996 study, Professor Kevin Norton said the findings reflected changing community expectations around representation.

“The positive changes we’re seeing in Barbie and Ken’s body shapes should provide some reassurance for health professionals and parents choosing these dolls,” Prof Norton said.

“The greater diversity we’re seeing is a positive step that better reflects the people children see around them every day.

“We know Barbie and Ken are promoted as aspirational role models, so it makes sense that their body shapes and proportions are meaningful to those who play with them.”

Co-researcher Belinda Durey said continued diversity in body shape, size and proportion, alongside positive messages about health, inclusion and body diversity, could further improve how children see themselves and others.

“Children’s toys do more than entertain, they help shape perceptions of bodies, health and identity. The more those toys reflect the diversity of real people, the more positive that influence can be,” Durey said.


“The introduction of multiple body shapes is a positive step. Continued diversification – including variation in size, shape and proportion – can better reflect real populations.

“There’s no doubt that today’s Barbie and Ken are still stylised, but they’re substantially closer to average human body proportions than earlier generations, and that’s a step in the right direction.”

Notes to editors:

  • The researchers systematically measured the physical dimensions and proportions of Barbie and Ken dolls and compared them with measurements taken from young males and females aged 18-35 years. Specific measures included: head, neck, chest, waist, hip, thigh, mid-thigh, calf, ankle, upper arm, forearm and wrist, with waist-to-hip, chest-to-waist, and chest-to-hip ratios calculated. Additionally, waist-to-height ratios were also calculated so that the doll proportions could be compared with evolving populations trends.

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SKKU researchers find promising evidence that "mindfulness-based cognitive therapy" may reduce internet gaming disorder in college students



Program combining mindfulness meditation and cognitive therapy substantially reduces gaming disorder symptoms and stress




Sungkyunkwan University External Affairs Division (PR team)






A research team led by Professor Anderson Sungmin Yoon and Minah Kim of Sungkyunkwan University (SKKU) has developed a "Mindfulness-Based Cognitive Therapy for Gaming (MBCT-G)" program to address internet gaming disorder among college students, and has found promising evidence of its therapeutic effectiveness. The research was conducted under the close supervision of the world-leading scholar, Willem Kuyken, director of Oxford Mindfulness Centre, and  has drawn significant attention from academic circles worldwide for presenting a new therapeutic alternative-using psychological intervention to ease internet gaming disorder, a growing public health issue among young adults. 

Internet gaming disorder refers to a state of excessive immersion in gaming severe enough to seriously disrupt daily life. This is particularly common among college students, who often turn to gaming to relieve academic or career-related stress as they begin living independently, away from parental supervision.

To address this problem, Professor Yoon’s research team newly adapted and modified "mindfulness-based cognitive therapy"—previously used to treat depression—to fit the specific characteristics of gaming disorder.  The program combines mindfulness meditation training — which helps students observe their thoughts, emotions, and impulses objectively when a strong urge to game arises — with cognitive therapy that helps them decenter from these urges and respond more skillfully.

The research team conducted an experiment involving 46 college students at high risk of internet gaming disorder. Over the course of an eight weeks’s intervention, participating students practiced mindfulness meditation, social skills, and self-care strantegies each week, while also planning and carrying out alternative pleasurable activities—such as physical activities, social/recreational activities, and creative hobbies—that allowed them to find enjoyment in daily life beyond gaming. As a result, students who completed the program showed a meaningful reduction in gaming addiction symptoms, along with decreases in stress and anxiety.

Above all, the most significant outcome was a marked improvement in students' "self-control"—their ability to overcome the urge to game on their own. This effect remained even one month after the program ended, demonstrating a sustained effect. 

Professor Yoon of SKKU explained the significance of the research, stating, " This study offers promising evidence for a psychological intervention that could help college students and adolescents break the vicious cycle of impulsively immersing themselves in gaming during particularly challenging periods in their development.." He added, "If widely adopted by college counseling centers and gaming addiction prevention centers, MBCT-G could help address IGD-related problems more efficiently, as its group-format delivery requires fewer clinical resources.."

Meanwhile, this research was supported by research funding from the Ministry of Culture, Sports and Tourism and the Korea Creative Content Agency for the development of game-based digital therapeutics technology.

 

Beyond COVID-19: Fundamental principles that shape pandemics



Scientists have compiled ten fundamental mechanisms governing the course of pandemics from various disciplines



Max-Planck-Gesellschaft

Epidemics feedback system 

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Scientists at the Max Planck Institute for Dynamics and Self-Organization have compiled ten fundamental mechanisms governing the course of pandemics from various disciplines. These are intended to aid in preparing for future pandemics and to provide a framework for policymakers, public health authorities, the scientific community, and the general public

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Credit: Max Planck Institute for Dynamics and Self-Organization

 





• Pandemics follow common fundamental principles despite their differences

• The course of pandemics arises from the interplay of biological, mathematical, and social mechanisms

• Understanding these principles can improve preparedness and response to future pandemics

Every pandemic is different. Nevertheless, certain commonalities can be identified across all pandemics. Researchers at the Max Planck Institute for Dynamics and Self-Organization (MPI-DS), together with an interdisciplinary team of experts, have compiled ten fundamental mechanisms that can be used to describe the development of pandemics. The study brings together insights from epidemiology, sociology, mathematics, physics, political science, psychology, and public health.

“Many of these mechanisms have long been known in their respective fields and are considered fundamental knowledge there,” says Viola Priesemann, professor and group leader at MPI-DS. “However, they are rarely considered together.” The COVID-19 pandemic has once again demonstrated that outbreaks of infection cannot be explained by biological factors alone. While the development of a pandemic clearly depends on the characteristics of the pathogen, its spread is modulated by social interaction, societal response, and the implementation of measures. The researchers selected ten examples and thereof described fundamental and robust mechanisms that are common across various diseases and social contexts.

The mechanisms described include established mathematical principles, such as e.g. the exponential growth of infections in the early phase of an outbreak. Small changes in the intensity or timing of measures can thus have a major impact on the subsequent course of the outbreak.

“Reducing group sizes at events or in school classes also has an interesting and clear effect on the number of expected new infections – and it’s quadratic,” explains Sydney Paltra, doctoral candidate at the Technical University of Berlin. “If the number of people were halved, for example, only a quarter of the infections would be expected,” Paltra continues.

Social mechanisms such as trust in institutions, solidarity, and risk perception also shape people’s behavior and the course of a pandemic. While crises can initially strengthen social cohesion, in the long term they can also exacerbate social divisions and erode trust. Understanding these dynamics is crucial for developing effective communication strategies and maintaining public support during a prolonged health crisis.

“Of course, these mechanisms do not operate in isolation,” emphasizes Philip Bechtle, a lecturer at the University of Bonn. “The goal is to understand their interplay more precisely and thus make the measures even more effective. To do this, we need data on the pandemic that is as accurate as possible and publicly available, such as infection figures and mobility data,” Bechtle explains further. In addition to rapid data exchange and interdisciplinary collaboration, the researchers believe that reliable surveillance systems and open scientific cooperation are also crucial. At the same time, long-term funding for independent basic research creates a knowledge base that helps prepare for unexpected challenges.

Even though the acute phase of the global COVID-19 pandemic is over, pandemics are expected to arise in the future as well. The mechanisms compiled by the scientists help ensure robust pandemic preparedness, regardless of the pathogen. They thus provide a framework for policymakers, health authorities, the scientific community, and the public.

 

 

Turning rice straw into biochar may help keep heavy metals out of rice




Maximum Academic Press
Accumulation of heavy metals in rice grains under different scenarios of straw addition. 

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Accumulation of heavy metals in rice grains under different scenarios of straw addition.

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Credit: Environmental and Biogeochemical Processes





A research team found that converting rice straw into biochar may be safer and more sustainable than directly incorporating untreated straw into paddy soils. Direct incorporation lowered copper and lead in rice grains but increased total arsenic by 73.1%, without significantly affecting cadmium, nickel, or zinc. By contrast, low-dose biochar increased none of the six metals tested while still reducing copper and lead. These findings support straw management that protects food quality, improves soils, sustains rice production, and reduces pollution.

Rice straw is commonly returned to agricultural soils to recycle nutrients, improve soil health, and avoid open-field burning. However, organic matter released during decomposition can alter soil acidity, redox conditions, microbial activity, and metal mobility. Earlier studies have generally examined individual contaminants and produced inconsistent findings: straw incorporation may reduce cadmium uptake but promote the accumulation of arsenic or mercury in rice. Because several heavy metals often coexist in paddy soils, recommendations based on a single contaminant may overlook important trade-offs. Furthermore, the effectiveness of measures such as accelerated decomposition, soil pH adjustment, and water management in controlling these risks remains uncertain, creating a need for an assessment of multiple metals under different straw-management scenarios.

A study (DOI: 10.48130/ebp-0026-0007) published in Environmental and Biogeochemical Processes on 30 June 2026 by Wenli Tang's & Huan Zhong's team, Nanjing University, reports that biochar can preserve the agricultural benefits of rice straw while avoiding the overall increase in grain heavy-metal accumulation associated with its direct incorporation.

The researchers conducted a greenhouse pot experiment using cadmium-contaminated paddy soil and established six management treatments, each with three replicates. These included a control without straw; direct rice-straw incorporation; straw combined with a decomposition agent; decomposer-treated straw plus calcium carbonate to raise soil pH; decomposer-treated straw combined with reduced water supply after flowering; and biochar produced by heating rice straw at 600 °C for two hours under oxygen-limited conditions. Untreated straw was applied at 1% of soil weight, whereas mass loss during pyrolysis resulted in a biochar application rate of approximately 0.3%. Rice plants were grown for 131–135 days. Throughout the experiment, the team measured soil pH, dissolved and total soil organic carbon, redox potential, cadmium availability, plant height, biomass, and grain yield. At harvest, arsenic, cadmium, copper, nickel, lead, and zinc in grains and other plant tissues were quantified using inductively coupled plasma mass spectrometry. The researchers also reviewed published studies to compare their experimental findings with previously reported effects of straw incorporation. Direct straw incorporation increased dissolved organic carbon and generally promoted plant growth, but it produced strongly metal-specific effects. Grain arsenic rose by 73.1%, whereas copper and lead declined by 13.8% and 89.3%, respectively; cadmium, nickel, and zinc showed no significant change. Neither faster straw decomposition, higher soil pH, nor modified water management reliably eliminated the increase in metal accumulation. Water-saving management was particularly problematic: grain cadmium increased 30-fold and reached 15 times the applicable national food-safety limit. By contrast, straw-derived biochar did not significantly increase any measured metal in the grain and significantly reduced copper and lead. It also improved soil properties, supported plant growth, and temporarily lowered extractable cadmium. A literature dataset containing 56 observations reinforced the need for multi-metal evaluation, showing average increases of 30.3% for cadmium and 28.5% for arsenic following direct straw incorporation, although responses varied with soil conditions.

Overall, the study questions whether returning untreated rice straw is always beneficial. Although direct incorporation is convenient and may promote plant growth, it can alter contaminant mobility and increase dietary exposure to certain heavy metals. Converting straw into biochar offers a more balanced approach, recycling agricultural biomass without raising metal concentrations in rice grain. However, field-scale trials, contaminant-speciation analyses, and economic assessments remain necessary before widespread adoption because biochar production requires straw collection, processing infrastructure, extra labor, investment, and resources.

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References

DOI

10.48130/ebp-0026-0007

Original Source URL

https://doi.org/10.48130/ebp-0026-0007

Funding information

We appreciate the financial support from the Huanghuai Lab Sci-Tech Innovation Project (240700002), the Natural Science Foundation of Jiangsu Province (BK20230082), and the National Natural Science Foundation of China (42107223).

About Environmental and Biogeochemical Processes

Environmental and Biogeochemical Processes (e-ISSN 3070-1708) is a multidisciplinary platform for communicating advances in fundamental and applied research on the interactions and processes involving the cycling of elements and compounds between the biological, geological, and chemical components of the environment.