Medical research

Gut microbes may talk to the brain through cortisol

Gut microbes have been in the news a lot lately. Recent studies show they can influence human health, behavior, and certain neurological disorders, such as autism. But just how do they communicate with the brain? Results ...

Psychology & Psychiatry

Stress heightens fear of threats from the past

Recognizing threats is an essential function of the human mind—think "fight or flight"—one that is aided by past negative experiences. But when older memories are coupled with stress, individuals are likely to perceive ...

Psychology & Psychiatry

Children react physically to stress from their social networks

Research has shown the significance of social relationships in influencing adult human behavior and health; however, little is known about how children's perception of their social networks correlates with stress and how ...

Medical research

Blocking hormone could eliminate stress-induced infertility

University of California, Berkeley, scientists have discovered that chronic stress activates a hormone that reduces fertility long after the stress has ended, and that blocking this hormone returns female reproductive behavior ...

Psychology & Psychiatry

Scientists zeroing in on psychosis risk factors

During the first phase of a major national study, scientists have uncovered a new cluster of preclinical symptoms linked to a significant increase in the risk that a young person will go on to develop a psychotic illness, ...

Genetics

Stress reaction may be in your dad's DNA, study finds

Stress in this generation could mean resilience in the next, a new study suggests. Male mice subjected to unpredictable stressors produced offspring that showed more flexible coping strategies when under stress, according ...

page 4 from 39