Wired but exhausted: what your nervous system is telling you
Shelf: Safety in the Body · Search intent: wired but tired, can't switch off
Feeling wired and exhausted at the same time often means your stress response is staying switched on long after the stress has passed. Your body is still braced for danger, so it can't fully rest, even when you're desperate to. The good news: your nervous system also has a brake, and you can learn to reach for it.
The gas pedal and the brake
Harvard Health describes the autonomic nervous system with a car analogy. The sympathetic branch is the gas pedal: it fires the fight-or-flight response and floods you with adrenaline. Your heart speeds up, breathing quickens and your senses sharpen.
If the brain keeps sensing threat, a second system, the HPA axis, releases cortisol to keep you on high alert. When the threat passes, cortisol falls and the parasympathetic branch, the brake, calms the body down.
The problem is that the body can react this way to things that aren't life-threatening: deadlines, traffic, family tension. With chronic low-level stress, Harvard Health says the HPA axis stays activated, like a motor idling too high for too long. That's the "wired" part. Running that hot, day after day, is tiring. That's the "exhausted" part.
What it can feel like
Tired all day, then alert the moment your head hits the pillow.
A busy mind that won't settle, even when your body is still.
Shoulders up near your ears, a clenched jaw, shallow breath.
Needing caffeine to start and something to wind down.
Feeling restless when you finally get time to rest.
A word on "adrenal fatigue"
You may see this pattern called adrenal fatigue online. The Endocrine Society, the world's largest organisation of hormone specialists, says there's no scientific proof that it's a real medical condition. Your exhaustion is real. It just deserves a proper explanation. If tiredness persists, see a doctor to rule out things like thyroid problems, anaemia or a sleep disorder.
Try it now: find the brake (2 minutes)
Sit or lie down. Let your eyes rest on one soft point, or close them.
Notice where you're holding: jaw, shoulders, belly. Don't fix it yet.
Breathe in through your nose. Breathe out slowly through your mouth, making the out-breath longer than the in-breath.
Repeat for about ten breaths.
Let your shoulders drop a little on each exhale.
Harvard Health lists deep abdominal breathing and yoga among the ways people can learn to counter the stress response.
Questions people ask
Why am I tired but can't sleep? One common reason is that your stress response is still active. Cortisol and adrenaline keep the body alert even when you feel drained. If sleep problems last, speak to a doctor.
What is the parasympathetic nervous system? The part of your autonomic nervous system that calms the body after a threat has passed, often called "rest and digest".
Is adrenal fatigue real? The Endocrine Society says it isn't a recognised medical condition. Persistent tiredness is real, though, and worth checking with a doctor.
Can yoga help with stress? Harvard Health names yoga, alongside breathing and other relaxation practices, as a way to help counter the stress response.
Come in
The Guestroom has short evening practices to help your body find its brake.
Written by Prishaniee, founder of the hOuse Of nO. Somatic guide, yoga teacher and Ayurveda practitioner.
