Immunology

Stress slows the immune response in sick mice

The neurotransmitter noradrenaline, which plays a key role in the fight-or-flight stress response, impairs immune responses by inhibiting the movements of various white blood cells in different tissues, researchers report ...

Medical research

Signals from muscle protect from dementia

How do different parts of the body communicate? Scientists at St. Jude are studying how signals sent from skeletal muscle affect the brain.

Medical research

In the liver, a stressed cell can be bad news for its neighbors

A key protein in the communication channels between cells can allow a stress response in one liver cell to spread to neighboring liver cells in mice, causing otherwise healthy cells to become dysfunctional, according to new ...

Psychology & Psychiatry

Laughter acts as a stress buffer—and even smiling helps

People who laugh frequently in their everyday lives may be better equipped to deal with stressful events—although this does not seem to apply to the intensity of laughter. These are the findings reported by a research team ...

Psychology & Psychiatry

Scientists develop new method that predicts vulnerability to stress

Stress is part of life for everyone, but how we respond to it seems to vary from person to person. For some, the effects of a stressful situation can be long-lasting and lead to anxiety, depression, and other health problems; ...

Neuroscience

Why stress doesn't always cause depression

Rats susceptible to anhedonia, a core symptom of depression, possess more serotonin neurons after being exposed to chronic stress, but the effect can be reversed through amygdala activation, according to new research in the ...

Medical research

Research discovers link between stress and circadian clock health

The human body has an internal biological clock that is constantly running. Our well-being is dependent on the function of that clock. New research from the University of Minnesota Medical School found a little stress can ...

Medical research

Researchers discover new pathway for improving metabolic health

Blocking the action of an enzyme involved in protein digestion may improve metabolic health, according to a new study published ahead of print in the American Journal of Physiology—Gastrointestinal and Liver Physiology. ...

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