Winter Fatigue Symptoms: Why You’re Exhausted (Even After 9 Hours of Sleep)
TL;DR Summary Winter fatigue isn’t just “how February feels in Michigan.” It’s a perfect storm of vitamin D deficiency, reduced circulation, and nervous system stress that makes you exhausted despite sleeping more. Your cold hands, brain fog, and short patience with the kids are symptoms of nervous system communication breakdown. Dr. Herrst’s whole-person chiropractic approach addresses the root cause, not just the symptoms. You’re Not Imagining It You’re in bed by 9pm now instead of 10:30. You hit snooze three times this morning when you used to bounce up at 6am. Your hands are cold even inside the house, and you’ve had two extra cups of coffee before lunch, but it’s not touching the exhaustion. The heaviness in the morning feels like you’re moving through mud. Your body aches but you can’t point to a specific injury. The cold settles into your hands and feet and won’t leave no matter how many layers you add. You thought about taking the kids for a nature walk at Fitzgerald Park or along the Ledges trails for science class, but the idea of bundling everyone up and dealing with the 15-degree wind makes you want to cry. The Grand Ledge District Library is doing their winter reading program, but you’re too exhausted to even consider it. Whether you’re homeschooling in DeWitt, running errands in Delta Township, or just trying to make it through the day in Wacousta, this Michigan winter doesn’t discriminate. The brain fog makes you read the same paragraph in the homeschool lesson three times. You’re sleeping nine hours but waking up feeling like you pulled an all-nighter. Then there’s the patience thing. You snapped at the kids over something small this morning. Again. You feel guilty because you know they’re just being kids, but your fuse is so short lately. Here’s what you need to hear: this isn’t a character flaw. You’re not a bad mom. You’re not weak. You’re not failing at homeschooling. You’re a human being whose nervous system is under siege from multiple stressors at once, and your body is responding exactly the way it’s designed to respond. The problem isn’t you. The problem is that nobody’s helping you see what’s actually happening. You’re doing everything “right.” You’re eating relatively well. You’re getting more sleep than usual. You’re not sick. But you feel worse than you did in November. And you can’t quite figure out why, which makes it even more frustrating. What if I told you this isn’t about doing more things right? What if the problem is that you’re looking at this through the wrong lens entirely? You can’t fix what you can’t see. And right now, you’re trying to solve a nervous system problem with lifestyle adjustments. That’s like trying to fix your internet connection by refreshing the browser harder. Here’s What’s Actually Happening in Your Body Here’s what most people don’t realize about winter fatigue symptoms: it’s not just one thing. It’s a perfect storm of factors that all hit at once, and they all connect back to one system in your body that controls everything else. When the temperature drops and stays below freezing for weeks (like it has been in Grand Ledge this winter), multiple things happen simultaneously. Your vitamin D levels plummet because you’re not getting sunlight exposure. Your body constricts blood vessels to preserve core temperature, which means less circulation to your hands, feet, and brain. Your nervous system goes into a low-grade stress response trying to regulate all of this. And that nervous system stress affects your sleep quality, your mood, your patience, and your energy levels. Most conventional approaches treat these as separate issues. Take vitamin D supplements for the deficiency. Drink more water for the fatigue. Try therapy for the irritability. But here’s what gets missed: your nervous system controls all of these functions. As an Adjunct Instructor of Human Physiology at Lansing Community College, I teach my students about the autonomic nervous system’s role in regulating every function in your body. Temperature control, circulation, sleep cycles, mood regulation, digestion, energy production – all of it runs through your nervous system. When your spine isn’t moving properly (which happens when you’re tensing against the cold, hunching at the homeschool table for hours, and moving less overall), your nervous system can’t communicate effectively with the rest of your body. That’s why you can sleep nine hours and still feel exhausted. That’s why your hands stay cold even inside. That’s why your patience is shorter than normal. Your body isn’t broken, it’s just not communicating properly. And that’s exactly what whole-person chiropractic care addresses. PHYSIOLOGY TEACHER’S CORNER: FROM THE CLASSROOM TO THE CLINIC In my Human Physiology classes at LCC, I teach students that the autonomic nervous system has two modes: sympathetic (fight-or-flight) and parasympathetic (rest-and-digest). Your body should shift between these modes naturally throughout the day. But here’s what happens in Michigan winters: chronic cold exposure keeps you in low-grade sympathetic mode. Your blood vessels stay constricted (cold hands and feet). Your sleep stays shallow (sympathetic doesn’t allow deep parasympathetic rest). Your patience stays short (sympathetic is survival mode, not nurturing mode). The textbook calls this “autonomic imbalance.” Research published in the Journal of Physiology demonstrates how spinal manipulation can improve autonomic nervous system regulation and heart rate variability. In my practice, I see it as your nervous system doing exactly what it’s designed to do – but getting stuck there because spinal restrictions prevent the shift back to parasympathetic mode. That’s the piece most conventional medicine misses. The Winter Fatigue Connection: What’s Really Going On Let’s break down what’s actually happening in your body right now, and more importantly, what you can do about it. Understanding the connections helps you make better decisions about your health instead of just trying random solutions and hoping something works. Vitamin D Deficiency and Nervous System Regulation Vitamin D isn’t just about bone health. It’s a critical component in how your nervous system functions, how your brain produces neurotransmitters









