
Live Well Be Well with Sarah Ann Macklin | Health, Lifestyle, Nutrition The Real Reason You're Exhausted: Body Budgeting, Hormones, and Burnout | Dr. Lisa Feldman Barrett
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Mar 27, 2026 Dr. Lisa Feldman Barrett, neuroscientist and author who studies emotion and brain prediction, explains how modern life drains the body budget. She links metabolism and hormonal transitions to persistent fatigue. Short check-ins for sleep, hydration, and basic needs can interrupt shame. Small, cumulative physical factors often underlie exhaustion.
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Exhaustion Comes From Body Budget Deficits
- Fatigue often results from unpredictability and body budgeting deficits rather than an overactive fight-or-flight circuit.
- Lisa Feldman Barrett explains that behaviors like fight or flight exist but there are no dedicated circuits; unpredictability and metabolic shortfalls drive exhaustion.
Hormones Make Body Budgeting Harder
- Hormonal transitions make the body harder to regulate, increasing susceptibility to body budgeting problems.
- Barrett cites adolescence, pregnancy, and menopause as times when metabolism significantly affects mental experience.
Check Sleep Water And Simple Comforts First
- Check basic physical needs first when you feel the world is ending: sleep, water, and simple comforts can reverse mood shifts quickly.
- Barrett trains herself to check stomach cues and drink ice water because dehydration and sleep loss often masquerade as emotional crises.

