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A common bacterium best known for causing pneumonia and sinus infections may also play a surprising role in Alzheimer's disease. Researchers found that Chlamydia pneumoniae can invade the retina and brain, where it sparks inflammation, nerve cell ...

Exercise may sharpen the mind by repairing the brain's protective shield. Researchers found that physical activity prompts the liver to release an enzyme that removes a harmful protein causing the blood-brain barrier to become leaky with age. In ...

Human language may seem messy and inefficient compared to the ultra-compact strings of ones and zeros used by computers--but our brains actually prefer it that way. New research reveals that while digital-style encoding could theoretically compress . ...

Scientists at Stanford have unveiled the first-ever global map of rare earthquakes that rumble deep within Earth's mantle rather than its crust. Long debated and notoriously difficult to confirm, these elusive quakes turn out to cluster in regions .. ...

A groundbreaking clinical trial is testing whether specially engineered stem cells can help the brain restore its own dopamine production in people with Parkinson's disease. Because the condition is driven by the gradual loss of dopamine-producing .. ...

Breathing polluted air may do more than harm your lungs -- it could also increase your risk of Alzheimer's disease. In a sweeping study of nearly 28 million older Americans, researchers found that long term exposure to fine particle air pollution was ...

For decades, scientists have believed that complex life began when two very different microbes joined forces, eventually giving rise to plants, animals, and fungi. But one major puzzle remained: how could these organisms have met if one depended on . ...

A giant virus discovered in Japan is adding fuel to the provocative idea that viruses helped create complex life. Named ushikuvirus, it infects amoebae and shows unique traits that connect different families of giant DNA viruses. Its unusual way of . ...

A new human study has uncovered how the body naturally turns off inflammation. Researchers found that fat-derived molecules called epoxy-oxylipins rein in immune cells that can otherwise drive chronic disease. Using a drug to boost these molecules .. ...

A major breakthrough could help save the world's bananas from a devastating disease. Scientists have discovered the exact genetic region in a wild banana that provides resistance to Fusarium wilt Subtropical Race 4 -- a destructive strain that ...