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          cortisol

          This shows cells.
          FeaturedGeneticsNeurosciencePsychology
          ·June 12, 2025·4 min read

          Stress Genes Guide Cell Cleanup

          New research has uncovered how the body clears dying cells during times of stress, shedding light on the unexpected role of classic stress-response genes. Using the model organism C. elegans, scientists tracked how these genes activate a pathway that helps remove cellular debris, a process essential for immune health and development.
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          This shows a person with a swab in their mouth.
          FeaturedNeurosciencePsychology
          ·May 24, 2025·5 min read

          Smart Floss Measures Stress Hormone for Easy, Real-Time Monitoring

          Engineers have developed a novel dental floss device that can detect cortisol—a hormone linked to stress—through saliva, offering a painless, real-time method for stress monitoring. The device uses electropolymerized molecularly imprinted polymers (eMIPs), which act like custom molds to recognize specific molecules.
          Read More
          This shows a woman and a brain.
          FeaturedNeurologyNeurosciencePsychology
          ·May 17, 2025·5 min read

          Midlife Cortisol Levels Linked to Alzheimer’s Risk

          A new study finds that elevated cortisol levels in midlife are linked to increased brain amyloid deposition—a key marker of Alzheimer’s disease—specifically in post-menopausal women. Researchers tracked 305 cognitively healthy individuals over 15 years and discovered that high cortisol predicted amyloid buildup later in life, but only among women who had gone through menopause.
          Read More
          This shows a stressed person.
          FeaturedNeurosciencePsychology
          ·May 14, 2025·6 min read

          New Insights Into Why Stress Is So Hard to Treat

          A new review reveals key differences in how stress hormone systems function in primate versus rodent brains, offering insight into why treatments for stress-related disorders often fail in humans. Researchers found that corticotropin releasing factor (CRF) interacts with dopamine circuits in more complex and widespread ways in primates, with dopamine neurons often releasing multiple neurotransmitters.
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          This shows a man with a fuzzy head.
          FeaturedNeuroscience
          ·November 13, 2024·6 min read

          Study Links Stress Hormones to Diabetes

          New research suggests that stress hormones, rather than impaired insulin signaling, may primarily drive diabetes in obesity. This study found that high levels of stress hormones, like norepinephrine, counter insulin’s effects, leading to insulin resistance even with intact insulin signaling. When genetically modified mice couldn’t produce these stress hormones, they avoided diabetes despite obesity. This breakthrough may explain why some obese individuals develop diabetes while others don’t.
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          This shows a happy older couple.
          FeaturedNeurosciencePsychology
          ·October 22, 2024·5 min read

          Happy Partners Help Reduce Stress in Older Adults

          Having a happy intimate partner can lower stress levels in older adults by reducing the production of cortisol, a stress hormone. Couples with higher relationship satisfaction experience an even stronger effect, suggesting that positive emotions in relationships act as a buffer against stress.
          Read More
          This shows the outline of two people.
          FeaturedNeurosciencePsychology
          ·September 25, 2024·5 min read

          Stress Fuels Impulsive Behavior in Response to Boredom

          Research shows a strong link between impulsivity, boredom, and stress, with highly impulsive individuals reacting more to boredom by releasing more of the stress hormone cortisol. This physiological response explains why impulsive people are more prone to making rash decisions when bored.
          Read More
          This shows a woman and COVID.
          FeaturedNeurologyNeuroscience
          ·August 19, 2024·5 min read

          Long COVID Linked to Brain Inflammation and Low Cortisol

          A study finds that COVID-19 proteins left in the brain may lower cortisol levels, leading to heightened inflammation and an exaggerated response to stressors. This discovery could explain the persistent neurological symptoms seen in Long COVID patients. Researchers suggest that managing stressors and investigating viral reservoirs might help alleviate these symptoms.
          Read More
          This shows a pregnant woman.
          FeaturedNeurosciencePsychology
          ·May 11, 2024·3 min read

          Mom’s Stress Hormone Shapes Child’s IQ

          Elevated cortisol levels during the third trimester of pregnancy are linked to lower IQ scores in 7-year-old boys, but not in girls. In contrast, higher urine cortisone levels during pregnancy were associated with improved IQ scores in girls.
          Read More
          This shows a happy couple.
          FeaturedNeurosciencePsychology
          ·April 8, 2024·5 min read

          Positive Partner Support Tied to Stress Relief

          Positive support from partners in a relationship can significantly reduce stress, as indicated by cortisol levels. Analyzing communication between 191 married couples, the research found that individuals felt more validated and cared for when their partners provided positive support, leading to lower cortisol levels.
          Read More
          This shows a man crying.
          FeaturedNeurosciencePsychology
          ·November 7, 2023·5 min read

          Cortisol’s Role in PTSD Vulnerability

          Researchers discovered how stress-induced hormones like cortisol influence the likelihood of developing PTSD. Using a rat model with a blunted hormonal response to stress, they observed impaired fear extinction, reduced hippocampal volume, and sleep disturbances, all traits associated with PTSD.
          Read More
          This shows a sleeping baby.
          FeaturedNeuroscience
          ·May 30, 2023·2 min read

          Hair Cortisol Levels in Infants May Predict Sleep Patterns

          Cortisol levels in late pregnancy may predict an infant's sleep patterns. Higher cortisol levels in neonates were found to be associated with longer sleep latency at 7 months.
          Read More
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          This shows a brain and a football helmet.

          Study Challenges Link Between Football and Brain Protein Buildup

          This shows a child sitting alone.

          Spotting Silent Scars: A New Way to Detect Childhood Abuse

          This shows two people and chat bubbles.

          When Words Aren’t Enough: Autistic Adults Navigate Nonverbal Challenges

          This shows a neuron.

          Protein Found to Strengthen Brain Cell Connections for Memory

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