Key Highlights
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New research reveals that obsessive-compulsive disorder involves a ‘low-cost pathological shortcut’ in the brain, where shifting from a default mode network state to other networks requires less energy than normal. This suggests that targeting specific brain networks with virtual stimulation could help restore healthier patterns of brain activity in patients.
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A large study of adults aged 75 and older found that most people reaching 90 remain cognitively healthy, with factors like taking blood pressure medication linked to better cognitive resilience, while psychiatric conditions and racial disparities were linked to a higher risk of cognitive decline. This highlights that both medical and social factors play a key role in protecting the aging brain.
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