Just Like Muscles, the Mind Needs Recovery
Rest for the body is easy for us to understand.
We know muscles need recovery after exercise. Stronger muscles and bones help keep us capable and resilient as we age. Movement improves circulation, strength, and endurance. Exercise is clearly one of the pillars of good physical health.
But we also know that the body cannot move nonstop. Muscles fatigue. Joints need recovery. The body requires sleep and periods of rest throughout the day to function well. Without that recovery, performance declines and injury becomes more likely. However, when we are in pain, ‘resting our selves out of pain’ is not the best move. A good practice when we are in pain is to find an activity that you can do safely to promote healing. Activity is critical to recovery.
Most people accept this idea easily.
What we talk about far less is that the brain operates under a very similar principle.
Just as physical activity strengthens the body, mental challenges strengthen the brain. Reading, learning new skills, solving puzzles, engaging in thoughtful conversation, and maintaining social connections all stimulate our thinking. These activities help maintain cognitive sharpness and can even build new neural connections through a process known as neuroplasticity.
In other words, the brain thrives on healthy challenge.
But there is a paradox.
Just like the body, the brain was never designed to operate at full intensity all the time.
Constant thinking, processing, worrying, researching, analyzing, and planning can quietly overload the nervous system. Many people today live in a state of continuous mental engagement. Emails, news, social media, problem-solving, and decision-making keep the brain working from morning until night.
Add stress, uncertainty, or health concerns into the mix, and the brain may move into an even higher level of activity.
This is where rumination and hypervigilance can develop.
Rumination is the repetitive cycling of thoughts — replaying events, worrying about outcomes, or trying to mentally solve problems over and over again.
Hypervigilance is a heightened state of monitoring — constantly scanning for problems or threats. In healthcare, this can sometimes show up as constant monitoring of symptoms, repeatedly searching for answers online, or moving from one medical opinion to another in search of certainty.
A certain level of vigilance can be helpful. Paying attention to our bodies and seeking appropriate medical care is important.
But when the brain never steps out of this state of monitoring and problem-solving, it can become exhausting.
The nervous system is built to shift between states of activity and recovery. When the brain remains in a constant state of alertness, it can keep the nervous system “turned up” for long periods of time. Over time, this can contribute to fatigue, difficulty concentrating, poor sleep, and in some individuals even increased sensitivity to discomfort or pain.
In my work as a physical therapist, I often see patients whose bodies are not simply dealing with tissue injury, but whose nervous systems have become overloaded by constant input and stress. The brain becomes very good at detecting problems, but not as good at settling back into a calm state.
Just like muscles that are constantly tense, a brain that is constantly “on” has difficulty recovering.
This is why mental rest is not a luxury — it is a biological necessity.
And mental rest is not just sleep at night.
The brain benefits from short periods throughout the day where it can quiet down and step out of constant problem-solving mode.
These pauses can take many forms:
• meditation
• slow breathing or breathwork
• quiet walking
• spending time in nature
• stepping away from screens
• simply sitting quietly for a few minutes
These moments allow the nervous system to shift out of high alert and back toward a more balanced state.
In many ways, these pauses function like recovery periods between sets of exercise. Without them, performance eventually declines.
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When the Brain Gets Stuck in High Alert
Not long ago, a patient came to see me with persistent back pain that had been troubling her for months.
She had done everything she could think of to solve the problem. She had seen multiple providers, had imaging performed, and had spent countless hours searching online for explanations. She had tried different exercises, avoided certain movements, and monitored every sensation in her back carefully throughout the day.
What struck me most during our conversation was not just the pain itself, but how much mental energy she was devoting to watching it.
Every movement was analyzed.
Every sensation was evaluated.
Every change in symptoms triggered a new round of concern and investigation.
Her brain had become extraordinarily skilled at scanning for danger signals coming from her back.
But the nervous system has a paradoxical tendency: the more closely we monitor a signal, the louder that signal can appear.
Just as a microphone placed too close to a speaker creates feedback, a brain that constantly scans the body can amplify sensations that might otherwise fade into the background.
This is not a failure of willpower or resilience. It is simply how protective nervous systems work. When the brain believes something might be wrong, it increases attention and sensitivity in order to protect us.
The challenge is that when this state continues for long periods of time, the nervous system can become overly tuned to danger signals, even when the tissues themselves are relatively safe.
One of the most helpful steps for patients like this is often not finding one more explanation, but helping the nervous system step out of constant alert mode.
Sometimes the first step toward calming pain is learning how to quiet the brain that has been working so hard to protect us.
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Why This Matters for Pain
One of the most important discoveries in modern pain science is that pain is not produced solely by injured tissues. Pain is an output of the nervous system — a protective response influenced by many factors including stress, fear, attention, past experiences, and overall nervous system sensitivity.
When the brain and nervous system spend long periods in a state of vigilance or overload, the system can become more reactive. Researchers often refer to this as sensitization, where the nervous system becomes more responsive to signals that might otherwise be tolerated without much difficulty.
In simple terms, an exhausted and over-alert nervous system can become better at detecting danger signals, even when the body itself is relatively safe.
This does not mean the pain is imaginary. It means the nervous system is doing its job a little too well.
Allowing the brain to experience moments of calm, quiet, and safety can help shift the nervous system toward a more balanced state. Over time, this can reduce the level of threat processing occurring in the brain and help the nervous system become less reactive.
Paradoxically, one of the ways we can improve resilience to pain is not through more effort, more analysis, or more searching for answers, but through strategic moments of mental quiet.
Sometimes the nervous system heals best not when we push harder, but when we allow it to settle.
Just like the body, the brain often becomes stronger after it has had time to rest.
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Selected Scientific References
Brosschot, J. F., Gerin, W., & Thayer, J. F. (2006).
The perseverative cognition hypothesis: A review of worry, prolonged stress-related physiological activation, and health. Journal of Psychosomatic Research.
Eccleston, C., & Crombez, G. (1999).
Pain demands attention: A cognitive-affective model of the interruptive function of pain. Psychological Bulletin.
Melzack, R. (1999).
From the gate to the neuromatrix. Pain.
Moseley, G. L., & Butler, D. S. (2017).
Explain Pain Supercharged. NOI Group.
Wiech, K. (2016).
Deconstructing the sensation of pain: The influence of cognitive processes on pain perception. Science.