Neuroscience

How social isolation transforms the brain

Chronic social isolation has debilitating effects on mental health in mammals—for example, it is often associated with depression and post-traumatic stress disorder in humans. Now, a team of Caltech researchers has discovered ...

Psychology & Psychiatry

Mental training changes brain structure and reduces social stress

Meditation is beneficial for our well-being. This ancient wisdom has been supported by scientific studies focusing on the practice of mindfulness. However, the words "mindfulness" and "meditation" denote a variety of mental ...

Psychology & Psychiatry

How pregnancy turns the stress response on its head

The link between psychological stress and physical health problems generally relates to a stress-induced immune response gone wild, with inflammation then causing damage to other systems in the body. It's a predictable cascade—except ...

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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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