Feeling Drained? Check Your Body Budget
June 13, 2025 By Caroline Adelman, PhD and Kelly Dunn, LCPC
I have a confession. I started writing this article on wellness while fighting off illness. Again. I’d love to blame it on the “plague of the week” phenomenon that comes with having school-aged children, but I know I also need to take some responsibility because, as it turns out, knowing better doesn’t always mean doing better when it comes to wellness.
That said, knowledge is still a powerful tool and part of my motivation for writing this is to hold myself accountable. Psychology has made major strides in understanding what’s needed not just to avoid burnout, but to cultivate lasting well-being. Many of these strategies are accessible to us all.
In this post, I’ll introduce a leading theory that helps explain how we can better support our well-being on a daily basis.
The Body Budget: A Predictive Brain Model
Recent advances in neuroscience and psychology have deepened our understanding of how emotions arise and how well-being can be supported. One particularly influential idea is the “body budget,” a concept introduced by neuroscientist and psychologist Dr. Lisa Feldman Barrett. This theory provides a biological explanation for why our emotional states fluctuate and why self-care plays a central role in maintaining mental and physical health.
According to Barrett’s theory, the brain’s primary function is not thought or emotion, but regulating the energy resources your body needs to function optimally. To accomplish this, the brain acts like a “budget manager,” predicting the body’s needs and making proactive adjustments.
Instead of simply reacting to our environment, the brain constantly anticipates upcoming demands and allocates energy accordingly, what Barrett describes as “withdrawals” and “deposits” in the body budget.
- Withdrawals occur when the body expends energy, including on physical (e.g., exercise), cognitive (e.g., problem-solving), and emotional (e.g., stress) tasks.
- Deposits occur through sleep, nutrition, rest, and supportive social interactions.
When the brain predicts well and keeps the budget balanced, the body runs smoothly and emotions stay regulated. But repeated or prolonged “overdrafts”, like chronic stress, poor sleep, or inadequate nutrition, can lead to emotional dysregulation, fatigue, and illness.
Emotions as Budgeting Tools
In this framework, emotions are not just passive reactions. They’re active predictions the brain uses to help regulate the body in anticipation of need. Emotional states emerge as the brain interprets sensory input and adjusts the body accordingly, either mobilizing energy for action or conserving it.
For example:
- Fear or anger triggers changes like a faster heart rate or muscle tension to prepare for a perceived threat. These responses are metabolically expensive, drawing heavily from the body budget.
- Calm or contentment signals balance, allowing the body to conserve energy.
This model helps explain why the same situation might feel different depending on your internal state. A depleted body budget can lead to irritability, anxiety, or emotional numbness, not necessarily because of what’s happening externally, but because the brain is trying to conserve resources.
The Role of Self-Care in Budget Replenishment
From a body budget perspective, self-care isn’t indulgence – it’s essential physiological maintenance. Activities that restore energy, like sleep, nutrition, movement, and meaningful connection, help bring the system back into balance.
Research supports the idea that these practices improve emotion regulation and build psychological resilience:
- Physical activity boosts mood and reduces symptoms of anxiety and depression, in part by influencing neurochemical and metabolic systems.
- Sleep is critical for emotional and cognitive functioning. Chronic sleep deprivation disrupts the brain’s ability to predict and meet the body’s needs.
- Social connection reduces allostatic load (the wear and tear of chronic stress) by signaling safety and support.
Each of these served as a deposit into your body budget, strengthening your capacity for emotional flexibility and focus.
Implications for Well-Being
In today’s world, maintaining a balanced body budget is especially challenging. Many of us live in a constant state of low-grade stress, juggling packed schedules, digital overload, and limited downtime. The pace of modern life often rewards productivity over rest, and the pressure to always be “on” can make it harder to prioritize the very things that replenish our energy reserves. As a result, chronic body budget overdrafts have become increasingly common, making it even more important to intentionally build in restorative practices.
The body budget model reframes well-being as a matter of energy management. When someone feels emotionally overwhelmed or disconnected, they may not just be “stressed” – they might be running on empty, with a chronically imbalanced body budget. Understanding this concept can be empowering. It offers a concrete way to check in with ourselves and ask: What kinds of withdrawals have I been making lately? What deposits do I need? Over time, managing the body budget effectively helps us think more clearly, feel more balanced, and bounce back more effectively from challenges.
The body budget model offers a powerful, science-based lens to understand how our brain, body, and emotions work together. Far from being abstract or purely psychological, emotions are deeply rooted in the biological systems that keep us alive and responsive. By learning to care for and replenish our body budget, we can lay the foundation for more sustainable well-being, one intentional deposit at a time.
