Walnut trees respond to stress by producing significant amounts of a chemical form of aspirin, scientists have discovered.

The brain is the key organ in the response to stress. It reacts in a complex, orchestrated manner that is related to the activation and inhibition of neural structures involved in sensory, motor, autonomic, cognitive and emotional processes.

An investigation into the effects of gum chewing on mood and cortisol levels during psychological stress," to be presented at the 2008 10th International Congress of Behavioral Medicine, found that chewing gum helped relieve anxiety, improve alertness and reduce stress among individuals in a laboratory setting.

While treadmill exercise stress testing is an essential tool in the prevention, detection and treatment of cardiovascular disease, physicians are often challenged to gain clear images of the heart when a patient is at peak stress level.

A person's heart rate can reveal a lot about how they make decisions when feeling stressed, a Queensland University of Technology academic says.

Anxiety is a normal human response to stress, but in some, it can develop into a disabling disorder of excessive and irrational fears, such as obsessive-compulsive disorder, panic disorder, or posttraumatic stress disorder.

For the first time, scientists from Rice University, the Carnegie Institution of Washington, and the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have measured — in the field rather than in the laboratory — how changes in stress in rocks affect changes in the speed of seismic waves at depths where earthquakes begin.

The brain is the key organ in the response to stress. Brain reactions determine what in the world is threatening and might be stressful for us, and regulate the stress responses that can be either adaptive or maladaptive.

The May 12 earthquake that rocked Sichuan Province in China was the first there in recorded history and unexpected in its magnitude. Now a team of geoscientists is looking at the potential for future earthquakes due to earthquake-induced changes in stress.

An examination of newborn intensive care finds that newborns undergo numerous procedures that are associated with pain and stress, and that many of these procedures are performed without medication or therapy to relieve pain, according to a study in the July 2 issue of JAMA.

How could a single, nonpharmacological intervention help patients deal with disorders ranging from high blood pressure, to pain syndromes, to infertility, to rheumatoid arthritis?

New research at UT Southwestern Medical Center may explain why some people who are stressed or depressed overeat.