Related topics: depression , anxiety
Stress (biological)
hideStress 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.
For more information about Stress (biological), read the full article at
Wikipedia.
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News tagged with stress
Physics Model Determines Dynamics of Friends and Enemies
Dec 02, 2009 |
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(PhysOrg.com) -- Sometimes friends can become enemies and enemies become friends, and it’s difficult to understand exactly how or why the changes took place. A new study shows that when the shifting of alliances ...
Modern tests demonstrate soundness of old iron bridge
Dec 21, 2009 |
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An unusual bowstring truss iron bridge that carried traffic across Roaring Run in Bedford County, Va. for almost 100 years is now a picturesque footbridge at the I-81 Ironto, Va. rest stop. Built in 1878, ...
Non-invasive technique blocks a conditioned fear in humans
Medicine & Health / Psychology & Psychiatry
Dec 09, 2009 |
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Scientists have for the first time selectively blocked a conditioned fear memory in humans with a behavioral manipulation. Participants remained free of the fear memory for at least a year. The research builds on emerging ...
Studying hair of ancient Peruvians answers questions about stress
Other Sciences / Archaeology & Fossils
Dec 09, 2009 |
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(PhysOrg.com) -- Recent studies show that one in three Canadians suffer from stress and the number is on the rise. But stress isn't a new problem.
Random DNA mix-ups not so random in cancer development
Dec 03, 2009 |
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Researchers at the UC San Diego School of Medicine have pinpointed a mechanism that may help explain how chromosomal translocations - the supposedly random shuffling of large chunks of DNA that frequently lead to cancer - ...
The therapeutic benefits of the human-animal bond
Other Sciences / Social Sciences
Nov 30, 2009 |
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A pet owner knows the enormous joy and comfort that an animal can provide, especially in troubled times. Most pets are considered important members of the family and irreplaceable companions. A growing body of research now ...
Acute stress leaves epigenetic marks on the hippocampus
Medicine & Health / Psychology & Psychiatry
Nov 24, 2009 |
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(PhysOrg.com) -- Scientists are learning that the dynamic regulation of genes -- as much as the genes themselves -- shapes the fate of organisms. Now the discovery of a new epigenetic mechanism regulating genes in the brain ...
Brain imaging shows kids' PTSD symptoms linked to poor hippocampus function
Medicine & Health / Psychology & Psychiatry
Dec 08, 2009 |
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Psychological trauma leaves a trail of damage in a child's brain, say scientists at the Stanford University School of Medicine and Lucile Packard Children's Hospital. Their new study gives the first direct evidence that children ...
Love hurts: Why emotional pain really affects us
Medicine & Health / Psychology & Psychiatry
Dec 03, 2009 |
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Have you ever felt overly upset by a social snubbing? Your genetics, not your friends, may be at fault.
Researchers find long awaited key to creating drought resistant crops
Dec 03, 2009 |
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Van Andel Research Institute (VARI) researchers have determined precisely how the plant hormone abscisic acid (ABA) works at the molecular level to help plants respond to environmental stresses such as drought and cold. ...
Patients can safely skip pre-surgery stress tests and beta blockers
Dec 02, 2009 |
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Physicians should "throttle back" from routinely ordering stress tests and prescribing beta blockers to patients before non-cardiac surgeries, according to a report by the University of Michigan released online this week.
Good stress response enhances recovery from surgery, study shows
Dec 01, 2009 |
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The right kind of stress response in the operating room could lead to quicker recovery for patients after knee surgery, according to a new study led by Stanford University School of Medicine researchers. The results could ...
'Comfort food' a stress killer: Australian study
Nov 24, 2009 |
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A high-fat, high-sugar diet could have the same effect on brain chemistry as mood-altering drugs, giving scientific support to the craving for "comfort food", Australian researchers said Tuesday.
Discovering addiction clues could help smokers kick the habit
Dec 21, 2009 |
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(PhysOrg.com) -- If you've ever tried to quit smoking, understanding how you got hooked in the first place probably seems irrelevant. But University of Nebraska-Lincoln psychologist Rick Bevins believes those ...
Five tips for stress-free exams
Dec 16, 2009 |
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(PhysOrg.com) -- It's exam time, and for many students that means long days, late nights and lots of coffee. It's easy to let the anxiety get to you, so what can you do to cope with exam tension?
