
The Science of “Hangry”: How Low Blood Sugar Fuels Couple Conflict
The Psychology Undergrad Podcast · The Psychology Student
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Show Notes
In this episode of The Psychology Undergrad, we unpack a striking 21-day study linking low evening blood glucose to higher aggressive impulses and behaviors in married couples. We break down ego depletion and self-control as a limited resource, explain why glucose is central to executive function, and walk through the study’s real-world daily measures (including the “voodoo doll” task) plus the lab-based aggression measure (noise blasts). The takeaway is blunt: when metabolic fuel drops, self-regulation fails—often right where it matters most: at home
#psychology #socialpsychology #selfcontrol #egodepletion #emotionregulation #relationships #conflict #aggression #hangry #neuroscience #researchmethods #behavioralscience