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Conversations with AI may change our perception of reality

The use of advanced language models has grown significantly worldwide, and interactions have become more personal and long-lasting.

According to the research, this continuity in dialogue may be crucial in shaping how systems respond to complex and sensitive topics.

The models operate with a so-called context, where previous conversations influence new responses.

As this context becomes extensive, it can begin to shape the model’s behavior more than its original training.

A study conducted by the Department of Psychology, Graduate Center, City University of New York shows that longer conversations can create a dynamic in which both user and system adapt to each other over time.

This may lead to a shared framework of understanding that does not necessarily reflect reality.

Differences between systems

The analysis of five different AI models reveals significant differences.

Some models tend to affirm problematic assumptions, while others make greater efforts to correct or mitigate them.

The results indicate that certain systems become more risky the longer a conversation continues, while others actually improve their safety responses with more context.

This suggests that design and safety architecture play a central role in how the technology handles sensitive situations.

A hidden mechanism

The researchers emphasize that the issue does not primarily lie in individual responses, but in the gradual buildup of dialogue.

Over time, the system may begin to reflect and reinforce the user’s perspective.

It is not the technology alone, but the interaction between human and machine over time that can create risk.

Thus, extended conversations become a kind of stress test of AI systems’ safety, where some models lose their ability for critical assessment, while others retain it.

Sources: Department of Psychology, Graduate Center, City University of New York.

Significant increase in acne among young adults, new figures show

Data from Boots Online Doctor, reported by LADbible, show that more people in their 20s are seeking treatment for acne.

In 2025, the number rose by 38 percent, following a 96 percent increase the previous year.

At the same time, nearly one in three prescriptions for acne medication is now issued to adults.

Many causes

There are several reasons why adults develop acne. According to Boots Online Doctor, it may be linked to hormones, stress, skincare, and environmental factors. Genetics may also play a role.

The NHS notes that changes in testosterone levels can trigger breakouts. Women are often more affected, partly due to menstruation, pregnancy, and hormonal disorders.

In addition, lifestyle can have an impact. Smoking, certain types of medication, cosmetics, and a high-sugar diet may all contribute to worsening the condition.

What can be done?

A simple and consistent skincare routine can help. Products for blemish-prone skin containing retinoids or salicylic acid are recommended.

It is also important not to pick at the skin, as this can make the condition worse.

If the problem is severe or long-lasting, a doctor can offer stronger treatments than those available over the counter.

Sources: LADbible, Boots Online Doctor, and NHS.

These foods can make your pollen allergy worse

Pollen allergy can affect more than just your nose and eyes. For many, certain foods can also trigger reactions, reports IFORM. Here is what you need to know.

What is cross-reactivity

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Cross-reactivity occurs when the immune system reacts to proteins in foods because they resemble those found in pollen. As a result, the body struggles to tell them apart and responds as if it were exposed to pollen.

How common is it

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A large proportion of people with pollen allergies, especially to birch, grass, and mugwort, also experience reactions to specific foods. This affects roughly every second person.

Typical symptoms

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Common symptoms include itching and swelling of the lips, mouth, and throat. Some may also feel irritation in the ears or discomfort in the stomach after eating certain foods.

Different reaction patterns

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For some, symptoms only appear during the pollen season when the body is already under strain. Others may experience reactions throughout the year, depending on their sensitivity.

Fruits linked to birch pollen

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People allergic to birch pollen may react to several fruits, including apples, especially green ones, as well as kiwi, apricot, plum, peach, cherry, nectarine, and pear.

Vegetables linked to birch pollen

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Certain vegetables can also trigger symptoms, such as carrots, potatoes, celery, tomato, bell pepper, and peas.

Nuts linked to birch pollen

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Nuts are a frequent cause of cross-reactions. This includes hazelnuts, peanuts, almonds, cashews, walnuts, Brazil nuts, pistachios, pecans, and macadamia nuts.

Foods linked to grass pollen

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With grass pollen allergy, both fruits and vegetables can cause issues. This includes orange, banana, melon, kiwi, and apricot, as well as vegetables like celery, tomato, and peas.

Foods linked to mugwort pollen

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Mugwort pollen can also lead to reactions. This is seen with foods such as orange, melon, and banana, as well as legumes, celery, tomato, carrot, and similar vegetables.

Herbs and spices

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People with celery allergy may also react to herbs and spices, particularly if they are also allergic to mugwort or birch pollen.

The role of preparation

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Many find that foods are easier to tolerate when peeled or cooked. Heat alters the proteins, making them less likely to trigger allergic reactions.

Managing symptoms

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If symptoms occur, stop eating the food immediately. Antihistamines can help relieve discomfort, and in severe cases such as throat swelling or breathing difficulties, medical attention is necessary.

Why your work position may be hurting you

Your body knows something is off long before you stop to think about it. The subtle aches during a workday are not random—they reflect how modern routines often ignore basic human needs.

Reporting from The Conversation, alongside findings from the European Agency for Safety and Health at Work, highlights a growing concern around how we position ourselves at work.

The wrong debate

For years, the discussion has focused on whether sitting or standing is healthier. But research suggests this is the wrong question entirely.

Remaining seated for long stretches is associated with tension in the upper body, especially the neck and lower back.

Yet standing for hours brings its own issues, including fatigue and pressure building in the legs and feet.

Across Europe, musculoskeletal problems remain the leading workplace health issue, driven largely by physical strain and repetitive conditions.

Pressure points

Much of the strain begins at ground level. The feet carry the body’s weight and influence posture throughout the entire system.

Studies of factory workers show that prolonged standing can shift how pressure is distributed across the feet, which may then affect the knees and spine. These changes can build up over time, especially when movement is limited.

Not everyone reacts the same way, making some workers more vulnerable than others.

A better approach

Experts point to simple but effective habits:

  • regular breaks
  • varied tasks
  • adjusted workstations
  • supportive shoes

The conclusion is consistent: the body thrives on movement. It is not the chair or the standing desk that causes harm, but the lack of variation.

Not all olive oil is equally healthy, new study shows

Olive oil comes in several varieties, and the main distinction lies in how they are produced.

According to the University of Rovira i Virgili, extra virgin olive oil is produced mechanically, which preserves more of its natural compounds.

Refined olive oil, by contrast, is processed to extend its shelf life and create a more uniform taste.

This process also removes some of the compounds that naturally occur in olives.

As a result, the two types of oil do not necessarily share the same nutritional properties.

Increased risk of cardiovascular disease

A study cited by HealthDay and published in Microbiome followed 656 people aged 55 to 75 over a two-year period. All participants had an increased risk of cardiovascular disease.

Researchers examined both their diets and their ability to think and remember. At the same time, their gut bacteria were analyzed to determine whether changes occurred over time.

The results showed that the composition of gut bacteria varied depending on the type of olive oil the participants consumed.

Gut bacteria and the brain

The study points to a link between certain gut bacteria and brain function.

One type of bacteria in particular was associated with better outcomes in some participants.

This association was primarily observed among those who consumed extra virgin olive oil.

The findings therefore suggest that the quality of dietary fat may influence both gut and brain health, and that differences between olive oil types play a role.

Sources: HealthDay and Microbiome.

This is how JD Vance lost weight – new photos reveal his transformation

Photos from 2022 to 2026 show that U.S. Vice President JD Vance has gradually lost weight over time.

According to Health Digest, this has been a gradual development, even though many have perceived it as rapid weight loss.

JD Vance has denied using weight-loss medication. Instead, he points to changes in his daily routine, particularly his diet.

One example is that he often skips breakfast.

Research from Harvard Medical School shows that people who eat breakfast, on average, consume more calories than those who skip it.

At the same time, other studies, such as one from The American Journal of Clinical Nutrition, indicate that the effect on weight loss is not conclusive.

The role of exercise

At the same time, JD Vance began exercising more. According to Health Digest, this happened after he found himself getting out of breath while playing with his children.

He started running and going to the gym. A study cited by CNN, based on research from Duke University, shows that a combination of cardio and strength training yields the best results.

Later, he also completed intensive training programs inspired by the military. These included running and strength exercises, which improved his endurance.

The importance of diet

Diet has also played a role. According to Health Digest, Vance has partially followed his wife’s vegetarian eating habits, which are rich in fiber.

According to the Obesity Medicine Association, high-fiber foods can increase feelings of fullness.

Weight Watchers also points out that vegetables can help reduce overall calorie intake.

Although he has changed his diet, he still eats sweets in smaller amounts, which may make it easier to maintain his weight in the long term.

Overall, the weight loss is not due to quick fixes, but rather to changes in diet, exercise, and daily habits over time.

Sources: Health Digest, Harvard Medical School, The American Journal of Clinical Nutrition, CNN, Obesity Medicine Association, and Weight Watchers.

How diet soda can affect your body if you drink it every day

Diet soda can seem like a smarter choice than regular soft drinks, but drinking it every day may affect more than just your calorie intake. According to Eat This, Not That!, research highlights several ways it can influence both your body and your habits over time.

Daily intake can have unintended effects

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Drinking diet soda every day, especially multiple cans, may have negative consequences for some people. While it contains no sugar, regular consumption can still influence how the body responds over time.

It starts with what’s inside the drink

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Diet soda contains artificial sweeteners like aspartame, along with ingredients such as phosphoric acid, caffeine, and caramel coloring that shape its taste and shelf life.

Approved ingredients don’t equal health benefits

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Although these components are considered safe within recommended limits, that does not necessarily mean they support long term health when consumed daily.

It can shift your taste preferences

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Over time, artificially sweetened drinks may alter how you perceive sweetness. This can make you more likely to crave sugary foods throughout the day.

Cravings may lead to more calories overall

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As cravings for sweet foods increase, total calorie intake may rise as well, meaning a zero calorie drink could indirectly contribute to higher energy consumption.

Your gut may also be affected

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Some research suggests that frequent intake may influence the balance of bacteria in the gut, which plays a role in overall health.

Blood sugar responses could change

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There are indications that artificial sweeteners may impact how the body regulates blood sugar, although the exact relationship is still being studied.

Possible links to metabolic health

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Higher consumption has been associated in some studies with an increased risk of metabolic issues, though lifestyle factors may also play a role.

The science is still evolving

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Many of these findings are not yet fully understood, and more research is needed to determine clear cause and effect relationships.

Caffeine can build up during the day

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Because diet soda contains caffeine, drinking several cans may affect sleep quality or increase feelings of restlessness in sensitive individuals.

Acidity may take a toll on teeth

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The acidic nature of the drink can gradually wear down tooth enamel, which may increase the risk of dental problems over time.

Moderation and alternatives matter

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Experts recommend limiting daily intake and choosing water, sparkling water, or other unsweetened drinks for regular hydration, especially if consumption has become a daily habit.

Researchers find new indicator of death within 24 hours

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Not knowing how much time is left can be one of the hardest parts of serious illness. Families wait, watch, and wonder, while doctors rely on experience and subtle physical changes to guide decisions in those final hours.

According to research published in BMJ Supportive and Palliative Care and led by Dr Jung Hun Kang at Gyeongsang National University Hospital, a small physical response may help indicate when death is very close, reports Unilad.

The study focused on patients already receiving end-of-life care, where predicting timing remains difficult.

A quiet indicator

The research followed over 100 hospice patients with advanced cancer. Medical teams monitored typical signs such as breathing shifts, skin color changes and declining awareness.

Alongside these, they assessed a reflex linked to the eye, which normally causes an automatic blink when touched.

A clear pattern

The findings showed that patients who no longer reacted were far more likely to die within 24 hours.

This loss appeared to signal a breakdown in essential brain function during the final stage of life.

Researchers noted that while the sign was strongly linked to imminent death, it should not be used alone to make definitive predictions.

Looking ahead

Further studies are planned to confirm the results in broader populations. There is also growing interest in using technology to detect subtle physical changes earlier and more accurately.

The aim is to give patients and families clearer guidance, helping ensure comfort and dignity at the end of life.

Researchers explore vitamin D’s role in breast cancer treatment

A quiet routine many people barely think about—getting enough vitamins—might hold more influence over serious illness than expected.

For those navigating cancer treatment, even small daily habits can feel like they carry enormous weight.

According to research from São Paulo State University, funded by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), scientists are now looking closely at something surprisingly simple, reports Science Daily.

A simple addition

In a clinical study involving 80 women over 45, researchers tested whether adding vitamin D to chemotherapy could make a measurable difference.

Participants were divided into two groups, with one receiving a daily supplement while the other took a placebo.

All patients underwent chemotherapy before surgery, a standard approach aimed at shrinking tumors.

After six months, the group receiving vitamin D showed notably stronger outcomes. A significantly higher proportion experienced complete disappearance of detectable cancer compared to those without supplementation.

Why it matters

Vitamin D is commonly associated with bone strength, but its role in immune defense is gaining attention.

Many cancer patients begin treatment with low levels of the vitamin, which may influence how the body responds to therapy.

Researchers highlighted several possible advantages:

  • Supports immune system activity
  • May enhance response to treatment
  • Widely available and low-cost

This positions vitamin D as a potentially accessible support tool, especially compared to more expensive medical interventions.

Still early days

Despite promising results, scientists emphasize that the study was relatively small. Larger trials are needed to confirm how much impact vitamin D truly has on chemotherapy effectiveness and whether results apply broadly.

The findings suggest potential—but not certainty. For now, experts see this as a starting point rather than a finished solution.

Scientists develop film that breaks down viruses

It happens dozens of times a day without much thought. Hands move from phone to keyboard, from door handle to table surface, carrying invisible traces along the way.

Most of it goes unnoticed, but the idea that everyday objects could actively fight back against microbes is beginning to shift how researchers think about hygiene.

According to researchers at RMIT University in Australia, a new type of plastic may soon turn common surfaces into active barriers against viruses, rather than passive carriers, reports Science Daily.

A surface that fights back

The team has developed a transparent, ultra-thin plastic layer designed to physically damage viruses the moment they land. Instead of relying on chemical coatings, the material works through its structure.

Its surface is covered in microscopic pillars, far too small to see, which interact directly with viral particles. When a virus touches the film, these structures stretch its outer layer until it breaks apart.

This approach marks a shift from traditional antiviral materials, which often depend on metals or chemical agents that can wear off or require maintenance.

Tested in the lab

In controlled experiments using a respiratory virus linked to illnesses like pneumonia, the material showed strong results. Within an hour, the vast majority of viral particles were no longer able to infect cells.

The researchers highlight that the material is based on acrylic, making it flexible and suitable for large-scale production.

This could allow it to be applied to everyday items such as screens or medical equipment.

Key findings from the study include:

  • Around 94% of virus particles were neutralized within 60 minutes
  • Performance depended heavily on the spacing of microscopic structures
  • The material can be manufactured using existing industrial methods

Why spacing matters

One of the most important discoveries was not the height of the tiny pillars, but how closely they are arranged.

When positioned tightly together, multiple pillars can act on a single virus at once, increasing the mechanical stress.

The most effective configuration involved spacing of roughly 60 nanometers. When that distance increased, the antiviral effect dropped significantly.

The research builds on earlier work with rigid materials but shows that flexible plastics can achieve similar, or even better, outcomes when engineered correctly.

Researchers say the goal is practical use, from consumer electronics to healthcare environments, where reducing surface transmission could have a meaningful impact.