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          serotonin

          This shows a woman, hearts, a brain, and brain waves.
          FeaturedNeurosciencePsychology
          ·October 13, 2025·6 min read

          EEG Test May Reveal Who Loses Libido on Antidepressants

          A new study reveals that serotonin levels in the brain, measured using a simple EEG-based test, can predict who will experience sexual side effects from SSRI antidepressants. Researchers found that people with higher serotonin activity before treatment were significantly more likely to have difficulty reaching orgasm during antidepressant use.
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          This shows a brain wrapped in a chain and a depressed woman.
          FeaturedNeurosciencePsychology
          ·October 3, 2025·6 min read

          Sugar Chains in the Brain: New Pathway Behind Depression Found

          Scientists have discovered that depression can be driven by abnormal sugar modifications on proteins in the brain, offering a new molecular pathway for understanding the disorder. Chronic stress was shown to reduce sialylation—a stabilizing sugar process—in the prefrontal cortex, impairing neural circuit stability and triggering depressive symptoms.
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          This shows a brain.
          FeaturedNeurosciencePsychology
          ·September 25, 2025·4 min read

          Prozac May Rewire the Brain by Loosening Rigid Neural Circuits

          A new study shows that fluoxetine, better known as Prozac, does more than increase serotonin—it changes how brain cells handle energy and rebuild connections. After two weeks of treatment, parvalbumin interneurons in the prefrontal cortex became less rigid, with mitochondrial energy genes reduced and plasticity genes upregulated.
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          This is a visual representation of the 5-HT1A serotonin receptor.
          FeaturedNeurosciencePsychology
          ·August 2, 2025·6 min read

          Fat Molecule May Control How You Feel Emotion

          Scientists have uncovered how the brain’s 5-HT1A serotonin receptor—vital in mood regulation—functions at the molecular level. This receptor, a common target of antidepressants and psychedelics, prefers certain signaling pathways no matter the drug, but drugs can still vary in how strongly they activate them.
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          This shows neurons.
          FeaturedNeurosciencePsychology
          ·July 19, 2025·6 min read

          More Than Serotonin: How Psychedelics Engage the Whole Brain

          Classical psychedelics like LSD, psilocybin, and mescaline are known for activating the 5-HT2A serotonin receptor, but a new study reveals their effects go far beyond. Researchers profiled 41 psychedelics against over 300 human receptors and found potent activity at serotonin, dopamine, and adrenergic sites.
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          This shows a brain.
          FeaturedNeurosciencePsychology
          ·June 17, 2025·5 min read

          Low Sodium Linked to Anxiety Through Brain Chemistry Disruption

          Chronic hyponatremia—long viewed as symptomless—is now shown to disrupt brain chemistry and cause anxiety-like behaviors, according to a new study in mice. Researchers found that prolonged low sodium levels reduced serotonin and dopamine in the amygdala, a brain region vital for emotional regulation.
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          This shows neurons.
          FeaturedNeuroscienceVisual Neuroscience
          ·June 11, 2025·4 min read

          How Serotonin Circuits Learn from Motion to Regulate Behavior

          Scientists have uncovered how serotonergic neurons in larval zebrafish process visual information tied to movement to determine when and how much serotonin to release. This neuromodulator fine-tunes the fish’s swimming effort, adjusting behavior based on the effectiveness of past actions.
          Read More
          This shows a brain and DNA.
          AutismFeaturedGeneticsNeuroscience
          ·May 22, 2025·5 min read

          DNA Methylation in Serotonin Center Offers New Clues to Autism

          A new study has uncovered abnormal DNA methylation patterns in the dorsal raphe—an area of the brain critical for serotonin signaling—in individuals with autism spectrum disorder (ASD). By analyzing postmortem brain samples, researchers identified epigenetic changes in key genes linked to sensory perception, serotonin regulation, and synaptic function.
          Read More
          This shows a brain and a person at a cross roads.
          FeaturedNeuroscience
          ·April 25, 2025·6 min read

          Serotonin Neurons Challenge Old Views of Brain Function

          Serotonin neurons in the brainstem are not independent, as once thought, but interact to influence decision-making. Researchers found that clusters of serotonin neurons compete and collaborate, shaping when and how serotonin is released throughout the brain.
          Read More
          This shows a head and a brain.
          AutismFeaturedNeuroscience
          ·April 14, 2025·5 min read

          Gut Imbalances in Autism Linked to Brain and Behavior Changes

          New research reveals that gut imbalances in children with autism may influence brain activity and behavior by disrupting the production of key neurotransmitters like serotonin. Scientists found that changes in gut-derived metabolites are linked to differences in brain structure and function in children with autism.
          Read More
          This shows a brain.
          FeaturedNeuroscience
          ·April 9, 2025·6 min read

          Serotonin Helps Your Brain Predict Future Rewards

          New research reveals that serotonin plays a key role in how the brain predicts future rewards, shedding light on its puzzling activity in response to both pleasure and pain. Scientists found that serotonin neurons encode a “prospective code for value,” signaling expectations about upcoming outcomes and how rapidly those expectations are changing.
          Read More
          This shows a brain.
          FeaturedNeuroscience
          ·April 5, 2025·4 min read

          Serotonin Signals the Brain’s Best Guess About Future Rewards

          A new study reveals that serotonin neurons in the brain may play a crucial role in helping us estimate the value of future rewards. Rather than simply responding to pleasure or pain, serotonin appears to encode a "prospective value" signal—telling the brain how good the near future is likely to be.
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          Pain Resilience, Not Pain Itself, Predicts How Active People Stay

          This shows a teen in bed, awake and looking at a computer late at night.

          Lack of Sleep in Teens Linked to Higher Suicide Risk

          This shows a brain.

          Brain’s Waste System Breakdown Linked to Dementia Risk

          This shows a mouth and a brain.

          Poor Oral Health Linked to Brain Damage Markers

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