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TL;DR: A 2026 randomized pilot study in JMIR Formative Research found that one brief yoga session did not significantly change salivary cortisol compared with quiet sitting, but it did raise heart rate during the active movement phase. Key Findings Yoga pilot…
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TL;DR: A 2026 review in Neuroscience & Biobehavioral Reviews found that chronic primary pain studies most consistently linked higher pain sensitivity with lower mean arterial pressure, higher cortisol, higher heart rate during recovery, and lower parasympathet…
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TL;DR: A 2026 randomized study in The Journal of Strength and Conditioning Research found that coherent breathing, a slow 6-breaths-per-minute breathing routine, improved several recovery markers in highly trained 400-meter athletes under repeated race stress…
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TL;DR: A 2026 Frontiers in Behavioral Neuroscience study reported that inaudible infrasound shifted mood toward unease and raised stress-hormone markers under controlled conditions, offering a physiological explanation for some room-specific fear sensations wi…
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TL;DR: A 2026 study in Psychopharmacology found that after 14 days of unpredictable chronic stress, a single 1-hour ayahuasca exposure restored sociability, reduced anxiety-like behavior, normalized cortisol, and rescued whole-brain BDNF in adult zebrafish wit…
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Obesity and Depression Share Five Converging Biological Pathways Obesity and depression represent two of the world’s fastest-growing epidemics. By 2030, over 1 billion people will have obesity, while depression will affect more than 350 million. Yet they are r…
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Elevated fingernail cortisol levels can distinguish individuals with lifetime major depressive disorder (MDD) from healthy controls, suggesting it as a promising biomarker for MDD. Highlights: Individuals with lifetime MDD had significantly higher fingernail c…
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Oral contraceptives (OCs) reduce avoidance bias and increase approach behavior under stress, with effects varying based on the type of contraceptive used. Highlights: Participants: The study involved 130 women, split evenly between those taking oral contracept…
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New research provides further evidence that insomnia is characterized by brain hyperarousal, even when controlling for symptoms of depression and anxiety. The study used electroencephalography (EEG) to measure daytime brain activity in patients with insomnia d…
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Addiction involves complex interactions between the brain’s reward circuitry and stress systems. The adrenal cortex and its hormones are emerging as key players. Key Facts: The hypothalamic-pituitary-adrenal (HPA) axis regulates adrenal cortex hormone secretio…
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