The knot in your stomach before a big decision. The heaviness in your chest on a Sunday night. The nights you cannot sleep even though you are exhausted. These are some of the most common burnout signs, and most of us have learned to push right past them. What if none of that is weakness? What if it is information, and your body has been trying to tell you something long before your mind was ready to listen?
In this episode of Rosabel Unscripted, I sit down with my guest Christoffel Sneijders, an ICF Master Certified Coach, author, therapist, and founder of 3 Brains Intelligence, joining me from Madrid. We talk about his own burnout, why high performers ignore burnout signs, and why knowing what to do so often is not enough to change anything. Stay to the end, because Christoffel gives you a simple way to check in with yourself that you can use today.
Burnout Signs Are Not Just in Your Head
Every day in my work I see the connection between the brain and the rest of the body. The nervous system does not stop at the neck. There are neurons around your heart, and according to Johns Hopkins Medicine, more than 100 million nerve cells line your digestive tract, a network often called the "second brain." These systems talk to your brain all day long.
The World Health Organization describes burnout as the result of chronic workplace stress that has not been successfully managed, marked by exhaustion, mental distance or cynicism toward your job, and reduced effectiveness. But as Christoffel's story shows, the body usually starts sending burnout signs well before those three show up on paper.
"You Vomit and You Go On": Christoffel's Story
Christoffel started as a software engineer, moved into sales, and then talked his way into Europe's leading leadership and coaching firm by being too stubborn to take no for an answer. Ten years later he was a partner. He played water polo three or four times a week, ran, and ate well. By every outward measure he was fit.
Then his appendix burst. While he was in the hospital, a doctor asked him a question no one else had: had he ever thought about burnout? Christoffel answered 20 screening questions. Nineteen pointed to burnout.
The turning point came in somatic therapy. His therapist asked what happens in water polo when you train hard. "You vomit and you go on," Christoffel said. The therapist asked how much of that attitude he brought into his work and his life. The answer was: everywhere. He had learned to treat his body's burnout signs as obstacles instead of messages.
7 Burnout Signs Your Body Sends First
Pulling together Christoffel's experience and what we discussed, here are seven burnout signs worth paying attention to:
- A tight or uneasy gut before decisions, meetings, or the start of the week.
- Heaviness in the chest, especially on Sunday nights.
- Exhausted but wired: you are tired, yet you cannot switch off at night.
- Frequent small illnesses, like colds or digestive upset, that keep coming back.
- Mental tiredness after sitting still. As Christoffel puts it, if you are drained after a conversation, you gave more energy than you received.
- Guilt when you rest or say no.
- Being the one everyone relies on, the person who never says no and is always the last to rest.
Recognizing burnout signs does not replace a medical evaluation. If you are dealing with chest pain, palpitations, or symptoms that are new or getting worse, please talk with your healthcare provider. If you want to understand the difference between everyday stress and burnout, I break it down in Stress vs. Burnout: What's the Big Difference?
The Head, Heart, and Gut Behind Burnout Signs
Christoffel's framework, 3 Brains Intelligence, looks at decision-making through three centers: the head, the heart, and the gut. Research from the HeartMath Institute on heart-brain communication and Michael Gershon's work on the gut as a "second brain" helped shape his thinking. Here is how he describes each one:
- The gut is about survival. Like the sea cucumber, which is basically a living digestive system, it thinks in win or lose. Once it has a task, it pushes until the task is done.
- The heart is about belonging. We are born completely dependent on the people who care for us, so the heart wants connection and does not want to disappoint anyone.
- The head is the air traffic control tower. It sees everything and analyzes, but it is not flying the plane.
Burnout, in Christoffel's view, happens when the heart takes over and turns the gut into its servant. The heart says, "We don't give up. Take care of everyone. Finish the proposal." The gut obeys and keeps pushing out energy. And because the heart's job of not disappointing anyone is never finished, sooner or later the body says no.
Where We Learn to Ignore Burnout Signs
Christoffel explains that many of our deepest beliefs form in the first seven years of life, before the brain can fully connect cause and effect across time. A child who gets snapped at by a tired parent does not think, "Dad had a hard day." The child thinks, "I am wrong."
Family history matters too. Christoffel's mother survived four years in a prison camp during World War II. My own mother started working at twelve and held three jobs. When you grow up watching the people you love push through everything without complaining, you learn that pushing through burnout signs is simply what you do. Nobody ever sits you down as an adult and says, "You can let that rule go now." I have written more about how the body holds these patterns in Trauma and the Body: 7 Powerful Truths Your Nervous System Needs You to Know.
I recognized myself in all of this. In my early nursing years in the ER, my first shift ran from 3 p.m. to 3 a.m. We were trained to skip meals, hold bathroom breaks, and finish the shift. If that sounds familiar, you may relate to my reflections On Nursing Burnout.
Why Mindset Alone Cannot Fix Burnout Signs
There is a lot of advice out there: reframe it, be more resilient, practice gratitude. None of that is wrong. But no amount of willpower overrides burnout signs once the body is already sounding the alarm.
Christoffel uses a simple example. Write a healthy shopping list in the morning, then skip every meal and go to the store at dinnertime. What ends up in your cart? Not the salad. When the body senses danger, it takes charge, and the head's plan gets overridden.
That is also why repetition is such a hard way to change as an adult. A toddler falls a thousand times before standing and never thinks about quitting. Adults quit within weeks. Christoffel points to what Strava calls "Quitters Day" in mid-January, when most New Year's fitness resolutions fall away. It is not weakness. It is biology saying, "This is not who we are." Lasting change means working with your heart and gut, not just pushing harder with your head. For practical tools, see Retrain Your Nervous System: 5 Proven Somatic Practices.
What Changed After He Listened
After his burnout, Christoffel went to his company and asked to work 80 percent. His manager said, "We don't do that." Dutch law said otherwise, so he did it anyway, the first person in the company to do so. Today he starts his day when he chooses, takes days off when he needs them, and tells clients plainly that a proposal can wait until after their vacation.
Years later, he needed open heart surgery for a genetic heart valve problem. His doctors told him that taking such good care of himself helped his body manage it. "Thank you, burnout," he says. Burnout is what taught him to listen to his burnout signs early.
I have made my own changes too, after years of ignoring my own burnout signs. I work weekdays, my weekends are off, and I no longer believe I have to save the world. With my patients, I am clear that their health is a partnership: I do my part, and they do theirs. And I try to lead by example. If I recommend something, I am doing it myself.
A Simple 3-Brain Check-In for Burnout Signs
Here is the tool Christoffel shared that you can use tonight, whether the decision is at work or at home:
- Make it physical. Put an object, like a glass of water, on the table to represent your decision.
- Imagine three wise people at the table: your head, your heart, and your gut. Give them names if that helps.
- Ask each one: "What do you think about this?" Then listen.
- Notice who is silent. Often one voice is missing. For Christoffel, it was the head.
- Check for fear. If the urge is "do it now or you'll lose it," that may be your impatient gut or a fear of missing out, not a true yes.
The real power is the pause. When burnout signs show up, a pause is what keeps one brain from running the show. It slows down the impatient gut, gives the people-pleasing heart a breath, and lets the head catch up.
Connect With Christoffel Sneijders
Want to know which of your three brains leads your decisions? Take Christoffel's free, five-minute 3 Brains Dominance Test. You can also explore his work and connect with him here:
- Website: 3brainsintelligence.com
- Books and free resources: 3 Brains Intelligence Books & Resources
- LinkedIn: 3 Brains Intelligence
- Instagram: @christoffelsneijders
- Facebook: 3 Brains Intelligence
- Book a free 15-minute call: Schedule with 3 Brains Intelligence
Final Thoughts
The tight stomach, the heavy chest, the nights you cannot switch off: these burnout signs might be your body trying to get your attention. You do not have to push through everything. Sometimes the bravest thing you can do is stop and listen.
Watch the full conversation with Christoffel on YouTube, and subscribe to Rosabel Unscripted so you never miss an episode. If this episode helped you, share it with someone who is always the last one to rest. For free brain health and caregiver resources, visit Rosabelievers, and if you are caring for someone with dementia, my free Understanding Dementia course is waiting for you there too.
This article was originally published at rosabelzohfeld.com.





