Tag #Brain

Showing 13 to 24 of 37 results

theguardian.com

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Feb 10, 16:11

The Neuroscience of Hallucination: Prevalence, Mechanisms, and Future Directions

This article explores the science of hallucinations, revealing their surprisingly high prevalence across various populations and linking them to the brain's predictive mechanisms; it highlights the role of brain region Area 10 in distinguishing reality from imagination and suggests future research d...

The Neuroscience of Hallucination: Prevalence, Mechanisms, and Future Directions

This article explores the science of hallucinations, revealing their surprisingly high prevalence across various populations and linking them to the brain's predictive mechanisms; it highlights the role of brain region Area 10 in distinguishing reality from imagination and suggests future research d...

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What is the neurological basis of hallucinations, and how prevalent are they across different populations?

The provided text explores the prevalence and neurological basis of hallucinations, citing studies showing high rates among bereaved individuals (80%), those with Charles Bonnet syndrome (60%), and amputees (most). These hallucinations stem from brain activity mirroring real-world perception, highlighting the brain's predictive role in sensory experience.

es.euronews.com

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Feb 8, 13:08

Microplastics Found in Human Brains: A New Study Reveals Unknown Health Risks

A study published in Nature Medicine found microplastics in all 52 human brain samples analyzed, with a 50% higher concentration in 2024 samples than in 2016 samples; higher concentrations were found in the brains of individuals with dementia; further research is needed to determine the health impac...

Microplastics Found in Human Brains: A New Study Reveals Unknown Health Risks

A study published in Nature Medicine found microplastics in all 52 human brain samples analyzed, with a 50% higher concentration in 2024 samples than in 2016 samples; higher concentrations were found in the brains of individuals with dementia; further research is needed to determine the health impac...

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What are the immediate health implications of microplastics being found in human brains, and what evidence supports these implications?

A new study reveals microplastics in human brains, with unknown health consequences. Researchers found microplastics in all 52 brain samples analyzed, with a 50% higher concentration in 2024 samples compared to 2016 samples. This suggests microplastics are crossing the blood-brain barrier.

nos.nl

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Feb 4, 13:10

Microplastics Found in Human Brains: Study Reveals Significant Levels

A University of New Mexico study published in Nature found microplastics, primarily polyethylene, in human brains, with levels significantly higher in individuals who died in 2024 and those with dementia. The researchers detected approximately 5000 micrograms of plastic per gram of brain tissue, equ...

Microplastics Found in Human Brains: Study Reveals Significant Levels

A University of New Mexico study published in Nature found microplastics, primarily polyethylene, in human brains, with levels significantly higher in individuals who died in 2024 and those with dementia. The researchers detected approximately 5000 micrograms of plastic per gram of brain tissue, equ...

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What are the immediate implications of the discovery of several grams of microplastics in human brains, and what are the next steps for research?

A recent study published in Nature found microplastics in human brains, with an estimated several grams per brain, equivalent to a plastic spoon. The most common type was polyethylene, found in packaging. Researchers detected approximately 5000 micrograms of plastic per gram of brain tissue.

forbes.com

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Feb 4, 16:11

Heavy Cannabis Use Linked to Reduced Brain Activity in Young Adults

A study of 1003 young adults found heavy cannabis use (over 1000 uses) correlates with reduced brain activity in memory-related regions, even after excluding recent users; recent use showed a weak, temporary link to reduced activity in memory and motor tasks, but this association was not significant...

Heavy Cannabis Use Linked to Reduced Brain Activity in Young Adults

A study of 1003 young adults found heavy cannabis use (over 1000 uses) correlates with reduced brain activity in memory-related regions, even after excluding recent users; recent use showed a weak, temporary link to reduced activity in memory and motor tasks, but this association was not significant...

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What is the direct impact of heavy cannabis use on brain activity in young adults, according to this new study?

A new study published in JAMA Network's Substance Use and Addiction journal reveals that heavy cannabis use (over 1000 uses) correlates with reduced brain activity in memory-related regions among 1003 young adults (aged 22-36). This reduced activity was observed during working memory tasks, even after excluding recent users, suggesting long-term impact. Recent cannabis use showed a weak, temporary link to reduced activity in memory and motor tasks, but this association was not significant after controlling for factors such as race and education.

welt.de

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Feb 4, 07:07

Increased Microplastic Levels Found in Human Brains

A new study reveals a dramatic increase in micro- and nanoplastic levels in human brains and livers between 2016 and 2024, with polyethylene being the most prevalent type, prompting concerns about health impacts.

Increased Microplastic Levels Found in Human Brains

A new study reveals a dramatic increase in micro- and nanoplastic levels in human brains and livers between 2016 and 2024, with polyethylene being the most prevalent type, prompting concerns about health impacts.

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What types of plastics were most commonly found, and what are the potential sources contributing to the observed increase in human tissue?

The study highlights a dramatic increase in micro- and nanoplastic concentrations in human organs, particularly the brain, between 2016 and 2024. Polyethylene, commonly used in plastics, was the most prevalent type. While the study doesn't establish a direct causal link to health problems, the findings are alarming and warrant further investigation.

elmundo.es

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Feb 3, 19:11

Microplastics Accumulate in Human Brains: A Growing Concern

A study of 52 human cadavers (2016-2024) found that microplastics and nanoplastics accumulate more in human brains than in livers or kidneys; concentrations increased over time and were higher in individuals with dementia.

Microplastics Accumulate in Human Brains: A Growing Concern

A study of 52 human cadavers (2016-2024) found that microplastics and nanoplastics accumulate more in human brains than in livers or kidneys; concentrations increased over time and were higher in individuals with dementia.

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What are the immediate implications of the finding that microplastics accumulate more in human brains than in other organs?

A study in Nature Medicine reveals that microplastics and nanoplastics accumulate more in human brains than in livers or kidneys. Researchers analyzed 52 human cadavers (2016-2024), finding higher concentrations in brain tissue, increasing over time, and significantly elevated in individuals with dementia. This suggests a potential link between microplastic exposure and neurological issues.

jpost.com

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Feb 9, 16:08

Microplastics Found in All Human Brains Analyzed; Concentration Increased 50% Since 2016

A study of 91 human brain samples revealed the presence of microplastics in all, with an average of 7 grams per brain and a 50% increase in concentration between 2016 and 2024, raising concerns about potential health impacts.

Microplastics Found in All Human Brains Analyzed; Concentration Increased 50% Since 2016

A study of 91 human brain samples revealed the presence of microplastics in all, with an average of 7 grams per brain and a 50% increase in concentration between 2016 and 2024, raising concerns about potential health impacts.

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What are the potential sources and pathways by which microplastics accumulate in the human brain, and how do these findings compare to microplastic levels in other organs?

The study highlights a concerning trend of increasing microplastic accumulation in human brains over time. Polyethylene, from common plastic products, was the most prevalent type detected. This raises questions about the potential impact of microplastics on human health, particularly neurological health, although a direct causal link with dementia hasn't been established.

pda.kp.ru

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Feb 8, 07:07

Microplastics Found in Human Brains: Correlation with Dementia

A study analyzing human tissue samples (2016-2024) found increased microplastic levels in the liver and brain, with a correlation between high brain microplastic levels and dementia in 12 out of 40 individuals; however, causality remains undetermined.

Microplastics Found in Human Brains: Correlation with Dementia

A study analyzing human tissue samples (2016-2024) found increased microplastic levels in the liver and brain, with a correlation between high brain microplastic levels and dementia in 12 out of 40 individuals; however, causality remains undetermined.

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What are the immediate health implications of the observed increase in microplastic concentration in human organs, particularly the brain, based on the recent study?

A recent study analyzing human tissue samples (liver, kidney, brain) from 2016-2024 revealed a significant increase in microplastic concentration in the liver and brain over eight years. Twelve out of forty individuals with high brain microplastic levels also suffered from dementia, a neurodegenerative disease affecting speech, memory, and cognitive function. However, this correlation doesn't establish causation.

cbsnews.com

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Feb 4, 19:12

Brain Microplastic Levels Surge 50% in 8 Years, Study Finds

A new study finds a 50% increase in brain microplastics over 8 years, with dementia patients having up to 10 times more; researchers suspect food contamination is a major source and warn of potential health impacts.

Brain Microplastic Levels Surge 50% in 8 Years, Study Finds

A new study finds a 50% increase in brain microplastics over 8 years, with dementia patients having up to 10 times more; researchers suspect food contamination is a major source and warn of potential health impacts.

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How might the food chain contribute to the accumulation of microplastics in the human brain?

The study, published in Nature Medicine, compared brain tissue samples from autopsies conducted in 2016 and 2024, finding substantially higher concentrations of microplastics in the more recent samples. The researchers suspect ingestion through food, particularly meat from plastic-contaminated sources, is a major pathway for microplastic accumulation. The smaller size of the particles (200 nanometers or less) allows them to potentially cross the blood-brain barrier.

zeit.de

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Feb 4, 07:07

Increased Microplastic Levels Found in Human Brain Tissue

A US study found significantly higher levels of nano- and microplastics in the liver and brain tissues of deceased individuals in 2024 than in 2016, with brain tissue showing the highest concentration (up to 30 times higher than in the liver or kidney).

Increased Microplastic Levels Found in Human Brain Tissue

A US study found significantly higher levels of nano- and microplastics in the liver and brain tissues of deceased individuals in 2024 than in 2016, with brain tissue showing the highest concentration (up to 30 times higher than in the liver or kidney).

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What are the key findings of the study regarding the accumulation of micro- and nanoplastics in human tissues, and what are the immediate implications?

A US research team found significantly higher levels of nano- and microplastics in the liver and brain tissues of deceased individuals in 2024 compared to samples from 2016. Brain tissue showed the highest concentration, up to 30 times higher than in the liver or kidney. This was revealed through specialized microscopy techniques, revealing the presence of microplastics even at the nanometer scale.

elpais.com

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Feb 3, 22:11

Higher Microplastic Concentrations Found in Human Brains

A Nature Medicine study reveals significantly higher microplastic concentrations in human brains compared to other organs, with levels 7 to 30 times greater in brain tissue than in the liver or kidneys, potentially due to the brain's high fat content and the hydrophobic nature of microplastics. Glob...

Higher Microplastic Concentrations Found in Human Brains

A Nature Medicine study reveals significantly higher microplastic concentrations in human brains compared to other organs, with levels 7 to 30 times greater in brain tissue than in the liver or kidneys, potentially due to the brain's high fat content and the hydrophobic nature of microplastics. Glob...

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What are the key findings of the Nature Medicine study regarding microplastic concentrations in human brains, and what are the immediate implications?

A new study published in Nature Medicine reveals significantly higher microplastic concentrations in human brain tissue compared to other organs, with levels 7 to 30 times greater than in the liver or kidneys. This increase, observed in samples from 2016 and 2024, is linked to rising global plastic production and environmental contamination.

english.elpais.com

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Dec 23, 19:10

Brain's Control of Intestinal Fat Absorption Suggests New Obesity Treatments

Researchers in Shanghai discovered that the brain regulates intestinal fat absorption in mice by controlling the length of microvilli in the jejunum via the vagus nerve; inactivating the nerve's dorsal motor nucleus reduces fat absorption and weight, while activation increases it, suggesting potenti...

Brain's Control of Intestinal Fat Absorption Suggests New Obesity Treatments

Researchers in Shanghai discovered that the brain regulates intestinal fat absorption in mice by controlling the length of microvilli in the jejunum via the vagus nerve; inactivating the nerve's dorsal motor nucleus reduces fat absorption and weight, while activation increases it, suggesting potenti...

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How does the brain directly regulate intestinal fat absorption, and what are the immediate implications for obesity treatment?

A study in mice reveals that the brain regulates intestinal fat absorption by controlling the length of microvilli in the jejunum, a part of the small intestine. Chemically inactivating the dorsal motor nucleus of the vagus nerve reduces fat absorption and weight, while activation increases it. This finding could lead to new treatments for obesity.

Showing 13 to 24 of 37 results