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The Conversation
The Conversation
Adam Kepecs, Professor of Neuroscience and Psychiatry, Washington University in St. Louis

Cancer hijacks your brain and steals your motivation − new research in mice reveals how, offering potential avenues for treatment

Many patients with late-stage cancer slip into a profound apathy as the disease ravages their bodies − and brains. demaerre/iStock via Getty Images Plus

A cruel consequence of advanced cancer is the profound apathy many patients experience as they lose interest in once-cherished activities. This symptom is part of a syndrome called cachexia, which affects about 80% of late-stage cancer patients, leading to severe muscle wasting and weight loss that leave patients bone thin despite adequate nutrition.

This loss of motivation doesn’t just deepen patients’ suffering, it isolates them from family and friends. Because patients struggle to engage with demanding therapies that require effort and persistence, it also strains families and complicates treatment.

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