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A wildfires.
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Andean Soils Struggle to Recover Four Years After Major Wildfire

Researchers found severe soil degradation four years after a wildfire on Pichu Pichu volcano. Volcanic soils in arid Andean ecosystems lack fire adaptation, making recovery slow.
Human intestines.
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Digestive Enzyme Defect May Trigger IBS Symptoms

Researchers identified genetic variants affecting sucrase, a key digestive enzyme, linked to IBS risk and symptom severity. Individuals with sucrase deficiencies reported more bloating, pain and diarrhea, suggesting sucrose intolerance.
Cartooned illustration of a human brain.
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Brain Bleeds Increase Dementia Risk

Weill Cornell Medicine researchers have found that intracranial hemorrhages, or "brain bleeds" caused by a ruptured blood vessel in the brain, double a person’s risk of developing dementia later in life.
Deconstructed sandwich with floating ingredients, including salami, cheese, lettuce, tomato, and sauces, captured in mid-air against a dark background.
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Safety of Intermittent Fasting Questioned, Especially in Teenagers

Researchers have discovered that chronic intermittent fasting disrupted the development of insulin-producing beta cells in young mice. The findings raise concerns about potential risks for humans, especially teenagers.
Ketamines chemical molecules (yellow) can bind to a specific part (the gray web) of the brain receptor.
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NMDA Receptor Discovery Advances Understanding of Ketamine’s Effects

Cold Spring Harbor Laboratory researchers confirm the existence of GluN1-2B-2D, a brain receptor targeted by ketamine. Using cryo-EM, they visualize how ketamine binds to the receptor, controlling its ion channel activity.
Cancer cells.
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Landmark Atlas Reveals How Aging Breast Tissue Shapes Breast Cancer Risk

Researchers at The Jackson Laboratory created an aging breast tissue atlas, revealing how genetic and molecular shifts may increase cancer risk. Changes in epithelial, immune and stromal cells create a tumor-friendly microenvironment.
OPN3 expressing neurons (green) in the paraventricular nucleus of the hypothalamus.
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Blocking Light-Sensitive Brain Protein Reduces Eating in Mice

A light-sensitive protein found in the hypothalamus has been shown to regulate food consumption.
Six blood test tube vials in a yellow rack.
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Real-World Trial Confirms Accuracy of Automated Alzheimer’s Blood Test

A new blood test could replace the current invasive diagnostic method for Alzheimer's disease.
Person in red hoodie standing on snowy mountain during daytime.
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Vehicle Tires Are the Largest Source of Nanoplastic Pollution in the High Alps

Researchers found nanoplastic contamination in Alpine glaciers, tracing the particles back to ocean waves and urban pollution. Using high-resolution mass spectrometry, the study revealed airborne plastics from France, Spain and the Atlantic Ocean.
Tall, burnt skeletons of trees surrounded by small, green trees with new growth.
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Trees Fail To Regenerate Fast Enough To Keep Pace With Climate Change

Tree ranges are generally contracting in response to climate change but not expanding into cooler, wetter climates – suggesting that forests are not regenerating fast enough to keep pace with climate change.
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