Neuroscience

How the brain fights off fears that return to haunt us

Neuroscientists at The University of Texas at Austin have discovered a group of cells in the brain that are responsible when a frightening memory re-emerges unexpectedly, like Michael Myers in every "Halloween" movie. The ...

Immunology

Researchers discover how sleep can fight infection

Researchers in Germany have discovered why sleep can sometimes be the best medicine. Sleep improves the potential ability of some of the body's immune cells to attach to their targets, according to a new study that will be ...

Medical research

Fountain of youth for heart health may lie in the gut

Why do blood vessels naturally stiffen and degrade as we age, boosting cardiovascular disease risk? New University of Colorado Boulder research has identified a surprising new culprit—and it lives in your gut.

Psychology & Psychiatry

The mystery of the super-ager

It was the kind of case no traditional medical textbook could explain.

Medical research

Healthy, stress-busting fat found hidden in dirt

Thirty years after scientists coined the term "hygiene hypothesis" to suggest that increased exposure to microorganisms could benefit health, CU Boulder researchers have identified an anti-inflammatory fat in a soil-dwelling ...

Medications

Stress hormones promote breast cancer metastasis

It has long been thought that stress contributes to cancer progression. Scientists from the University of Basel and the University Hospital of Basel have deciphered the molecular mechanisms linking breast cancer metastasis ...

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Stress (biological)

Stress is a biological term which refers to the consequences of the failure of a human or animal to respond appropriately to emotional or physical threats to the organism, whether actual or imagined. It includes a state of alarm and adrenaline production, short-term resistance as a coping mechanism, and exhaustion. Common stress symptoms include irritability, muscular tension, inability to concentrate and a variety of physical reactions, such as headaches and elevated heart rate.

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