Two large cohorts (one UK, one Chinese) found shifting from optimal to non-optimal sleep or stopping napping linked to higher dementia risk. But reverse causation limits certainty about prevention.
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Psychiatric disorders share genetic variants that cluster into five main factors. Understanding shared biology could improve treatment, but more diverse genetic data urgently needed.
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Oxytocin alone didn’t speed wound healing in couples, but combined with affectionate touch and partner appreciation, it showed modest benefits. Social context matters more than hormones.
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In this small RCT, vitamin C supplementation improved attention and work absorption in healthy young adults with low vitamin C levels, alongside changes in gut bacteria and inflammation markers.
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Recent research suggests that lower IQ and cognitive performance link to higher alcohol use disorder risk, but education and societal factors can amplify or reduce this vulnerability, not genetics alone.
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Decades of disappointing anti-inflammatory trials for depression may have failed because they weren’t targeting the right patients. New meta-analysis shows promising results when they do.
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New research reveals how antipsychotic medications affect working memory speed in healthy adults, providing crucial insights into the cognitive side effects of these widely prescribed drugs.
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Sexual assault survivors face six-fold increased risk of multiorgan functional somatic disorder (unexplained physical symptoms like chronic pain and fatigue).
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This study used Mendelian randomisation to test potential causal relationships between depression and 137 traits. Depression liability was linked to somatic diseases, inflammation, suicide risk, insomnia, lower cognitive function and functional impairments, though findings require validation.
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This Danish study of over 3 million people found that having a first-degree relative with depression increased risk 2.35-times, resulting in 15% lifetime risk (compared to 7.8% in the general population). However, 60% of depression cases occurred in people with no affected close relatives, highlighting that family history is only part of the story.
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