Medical research

Getting to the heart of heart muscle function

Every heart muscle cell, or cardiomyocyte, is studded with tiny, intricate structures called dyads. The dyads are like orchestra conductors: They coordinate incoming electrical signals with release of calcium in the muscle, ...

Diseases, Conditions, Syndromes

What you need to know about urinary incontinence

(HealthDay)—Everyone has had a case of the squirms at some point in their life, fighting the need to urinate as a full bladder presses them to let it all go.

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; ...

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