World’s largest scientific review warns consumption of UPFs poses seismic threat to global health and wellbeingUltra-processed food (UPF) is linked to harm in every major organ system of the human body and poses a seismic threat to global health, according to the world’s largest review.UPF is also rapidly displacing fresh food in the diets of children and adults on every continent, and is associated with an <a href="https://www.theguardian.com/society/2025/apr/28/ultra-processed-food-increases-risk-of-early-death-international-study-finds">increased risk of a dozen health conditions</a>, including obesity, type 2 diabetes, heart disease and depression. <a href="https://www.theguardian.com/society/2025/nov/18/ultra-processed-food-linked-to-harm-in-every-major-human-organ-study-finds">Continue reading...</a>

وجدت مراجعة علمية شاملة أن الأطعمة المعالجة بشكل مفرط (UPFs) مرتبطة بأضرار في كل نظام عضو رئيسي في جسم الإنسان، مما يمثل تهديدًا كبيرًا للصحة العالمية. إن استهلاك الأطعمة المعالجة بشكل مفرط يحل بسرعة محل الأطعمة الطازجة في أنظمة غذائية حول العالم، ويرتبط بزيادة خطر الإصابة بمختلف الحالات الصحية، بما في ذلك السمنة، ومرض السكري من النوع 2، وأمراض القلب، والاكتئاب.

Una revisión científica exhaustiva ha encontrado que los alimentos ultraprocesados (UPF) están relacionados con daños en todos los sistemas de órganos principales del cuerpo humano, representando una amenaza significativa para la salud global. El consumo de UPF está reemplazando rápidamente a los alimentos frescos en las dietas de todo el mundo y se asocia con un mayor riesgo de diversas condiciones de salud, incluyendo obesidad, diabetes tipo 2, enfermedades cardíacas y depresión.

Une vaste revue scientifique a révélé que les aliments ultra-transformés (UPF) sont liés à des dommages dans chaque système organique majeur du corps humain, représentant une menace significative pour la santé mondiale. La consommation d'UPF remplace rapidement les aliments frais dans les régimes alimentaires à travers le monde et est associée à un risque accru de diverses conditions de santé, y compris l'obésité, le diabète de type 2, les maladies cardiaques et la dépression.

A comprehensive scientific review has found that ultra-processed foods (UPFs) are linked to harm in every major organ system of the human body, posing a significant threat to global health. The consumption of UPFs is rapidly replacing fresh foods in diets worldwide and is associated with an increased risk of various health conditions, including obesity, type 2 diabetes, heart disease, and depression.

Ultra-processed food linked to harm in every major human organ, study finds

Tech giant Nvidia reported blockbuster earnings Wednesday, fueling both cheers and fears about Wall Street's ballooning AI investments.

أعلنت شركة نفيديا عن أرباح مذهلة يوم الأربعاء، مما أدى إلى تخفيف المخاوف بشأن فقاعة محتملة في الذكاء الاصطناعي. لقد أثار الأداء المالي للعملاق التكنولوجي كل من الحماس والقلق بشأن الاستثمارات المتزايدة في الذكاء الاصطناعي في وول ستريت.

Nvidia reportó ganancias impresionantes el miércoles, disipando preocupaciones sobre una posible burbuja de IA. El desempeño financiero del gigante tecnológico ha generado tanto entusiasmo como aprensión sobre las crecientes inversiones en inteligencia artificial en Wall Street.

Nvidia a annoncé des résultats impressionnants mercredi, dissipant les inquiétudes concernant une éventuelle bulle de l'IA. La performance financière du géant technologique a suscité à la fois de l'enthousiasme et de l'appréhension quant à l'augmentation des investissements dans l'intelligence artificielle à Wall Street.

Nvidia reported impressive earnings on Wednesday, alleviating concerns regarding a potential AI bubble. The tech giant's financial performance has sparked both excitement and apprehension about the increasing investments in artificial intelligence on Wall Street.

Nvidia reports blockbuster earnings, rejecting concerns about AI bubble

Two bacteriologists showed that mutations arise spontaneously in bacterial cultures, thereby disproving Jean-Baptiste Lamarck's theory of evolution.

أجرى باحثان في علم الأحياء الدقيقة تجربة تُظهر أن الطفرات تحدث بشكل عفوي في الثقافات البكتيرية، مما يوفر أدلة ضد نظرية التطور لجان باتيست لامارك. تدعم هذه النتيجة جانبًا أساسيًا من التطور الدارويني.

Dos bacteriólogos realizaron un experimento que demuestra que las mutaciones ocurren espontáneamente en cultivos bacterianos, proporcionando evidencia en contra de la teoría de evolución de Jean-Baptiste Lamarck. Este hallazgo apoya un aspecto fundamental de la evolución darwiniana.

Deux bactériologistes ont mené une expérience montrant que les mutations se produisent spontanément dans des cultures bactériennes, fournissant des preuves contre la théorie de l'évolution de Jean-Baptiste Lamarck. Cette découverte soutient un aspect fondamental de l'évolution darwinienne.

Two bacteriologists conducted an experiment demonstrating that mutations occur spontaneously in bacterial cultures, providing evidence against Jean-Baptiste Lamarck's theory of evolution. This finding supports a fundamental aspect of Darwinian evolution.

Science history: Experiment shows mutations arise spontaneously, supporting pillar of Darwinian evolution — Nov. 20, 1943

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Amazon just dropped its best Black Friday deals on Kindles including the Paperwhite and Scribe

As the Cop30 climate talks continue in Brazil, Madeleine Finlay hears about a landscape at the opposite end of the planet facing the direct impacts of the climate crisis. The Guardian reporter Leyland Cecco recounts a recent trip to Qikiqtaruk (also known as Herschel Island) off the coast of Canada’s Yukon territory, where he saw first hand how indigenous groups and scientists are reckoning with an ecosystem collapsing into the sea. He tells Madeleine about efforts to preserve the history of the island and how scientists are racing to understand what it means for the fate of other arctic communities.<a href="https://www.theguardian.com/environment/2024/nov/21/canada-arctic-herschel-island-qikiqtaruk-climate-permafrost-tundra-ecology-aoe">‘The land is tearing itself apart’: life on a collapsing Arctic isle</a>Support the Guardian: <a href="http://theguardian.com/sciencepod">theguardian.com/sciencepod</a> <a href="https://www.theguardian.com/science/audio/2025/nov/20/chunks-of-earth-just-disappear-life-on-a-collapsing-island-podcast">Continue reading...</a>

بينما تستمر محادثات المناخ في مؤتمر COP30 في البرازيل، يشارك لييلاند تشيكو من صحيفة الغارديان رؤاه من زيارته إلى كيكيتاروك (جزيرة هيرشل) في إقليم يوكون بكندا. يسلط الضوء على التأثيرات المقلقة لتغير المناخ على الجزيرة، حيث تشهد المجتمعات الأصلية والعلماء تآكل الأرض في البحر. تُبذل جهود لتوثيق تاريخ الجزيرة وفهم الآثار المترتبة على المجتمعات القطبية الأخرى التي تواجه تحديات مماثلة.

Mientras continúan las conversaciones climáticas de la Cop30 en Brasil, Leyland Cecco de The Guardian comparte sus observaciones de su visita a Qikiqtaruk (Isla Herschel) en el territorio de Yukon, Canadá. Destaca los alarmantes efectos del cambio climático en la isla, donde comunidades indígenas y científicos son testigos de la erosión de la tierra hacia el mar. Se están realizando esfuerzos para documentar la historia de la isla y entender las implicaciones para otras regiones árticas que enfrentan desafíos similares.

Alors que les négociations climatiques de la Cop30 se déroulent au Brésil, Leyland Cecco du Guardian partage ses observations lors de sa visite à Qikiqtaruk (île Herschel) dans le territoire du Yukon au Canada. Il met en lumière les effets alarmants du changement climatique sur l'île, où les communautés autochtones et les scientifiques sont témoins de l'érosion des terres dans la mer. Des efforts sont en cours pour documenter l'histoire de l'île et comprendre les implications pour d'autres régions arctiques confrontées à des défis similaires.

As the Cop30 climate talks unfold in Brazil, Leyland Cecco from The Guardian shares insights from his visit to Qikiqtaruk (Herschel Island) in Canada’s Yukon territory. He highlights the alarming effects of climate change on the island, where indigenous communities and scientists are witnessing the land erode into the sea. Efforts are underway to document the island's history and understand the implications for other Arctic regions facing similar challenges.

‘Chunks of earth just disappear’: life on a collapsing island – podcast

Australia will now support the Turkish bid to host the climate talks in return for their minister chairing them.

Turkey set to host COP31 after reaching compromise with Australia

Conservation can be tough when a property is passed down informally over generations. A growing effort is helping families sort it all out.

They Loved Their Family Land in South Carolina. But Who Actually Owned It?

Study calls for depression treatment to be suspended for more research after reports of heart problems and emotional bluntingElectroconvulsive therapy could be causing a wider range of adverse effects when used to treat depression than previously understood, according to a paper that calls for the practice to be suspended pending more robust research.Although short- and long-term memory loss is widely known to result from ECT, the research identified 25 further concerning side effects, which included cardiovascular problems, fatigue and emotional blunting. <a href="https://www.theguardian.com/science/2025/nov/20/depression-electroconvulsive-therapy-adverse-effects-study">Continue reading...</a>

تشير دراسة حديثة إلى أن العلاج بالصدمات الكهربائية (ECT) قد يؤدي إلى مجموعة أوسع من الآثار الجانبية السلبية مما كان يُعتقد سابقًا، مما يستدعي الدعوة إلى تعليق استخدامه حتى يتم إجراء المزيد من الأبحاث. على الرغم من أن فقدان الذاكرة هو نتيجة معروفة للعلاج بالصدمات الكهربائية، فقد حدد الباحثون 25 أثرًا جانبيًا مقلقًا إضافيًا، بما في ذلك مشاكل القلب، والتعب، وتخدير المشاعر.

Un estudio reciente sugiere que la terapia electroconvulsiva (ECT) puede causar una gama más amplia de efectos adversos de lo que se pensaba anteriormente, lo que ha llevado a solicitar la suspensión de su uso hasta que se realicen más investigaciones. Aunque la pérdida de memoria es una consecuencia conocida de la ECT, los investigadores identificaron 25 efectos secundarios preocupantes adicionales, incluidos problemas cardiovasculares, fatiga y embotamiento emocional.

Une étude récente suggère que la thérapie électroconvulsive (ECT) pourrait entraîner une gamme d'effets indésirables plus large que ce qui était précédemment reconnu, incitant à suspendre son utilisation jusqu'à ce que des recherches supplémentaires soient menées. Bien que la perte de mémoire soit une conséquence connue de l'ECT, les chercheurs ont identifié 25 effets secondaires préoccupants supplémentaires, notamment des problèmes cardiovasculaires, de la fatigue et un émoussement émotionnel.

A recent study suggests that electroconvulsive therapy (ECT) may lead to a broader range of adverse effects than previously recognized, prompting calls for a suspension of its use until further research is conducted. While memory loss is a known consequence of ECT, researchers identified 25 additional concerning side effects, including cardiovascular issues, fatigue, and emotional blunting.

Electroconvulsive therapy may have more adverse effects than thought

The interstellar visitor, known as 3I/Atlas, will be seen just in this instance, never to come back againNasa released close-up pictures on Wednesday of the <a href="https://apnews.com/article/interstellar-comet-nasa-b9df6568efee22c02b722a87377d30db">interstellar comet</a> that’s making a quick one-and-done tour of the solar system.<a href="https://apnews.com/article/new-comet-nasa-3iatlas-83646ec002106c8ff89757330c69bfe8">Discovered over the summer</a>, the comet known as 3I/Atlas is only the third confirmed object to visit our corner of the cosmos from another star. It zipped harmlessly past Mars last month. <a href="https://www.theguardian.com/science/2025/nov/19/nasa-interstellar-comet-pictures">Continue reading...</a>

Ultra-processed food linked to harm in every major human organ, study finds

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