When the Body Cannot Let Go: Herbs, Emotions, the Nervous System & The Deeper Roots of Sleep.

I've had nights when I lay my head on the pillow and I'm out like a light, and then there are nights where exhaustion is siting so heavily in my body that I can barely hold my eyes open… and yet sleep will not come to me. My mind won't stop looping and I feel that my body is tight and filled with unease. My nervous system remains watchful. The more sleep evades me, the more frustrated I feel, because I know that I am sooo tired and need to sleep.

I've learnt though that beneath all of that, sits something deeper than simply "poor sleep." Because sometimes insomnia is not my body failing, sometimes it is my body protecting itself.

Modern medicine speaks extensively about nervous system dysregulation, cortisol rhythms, chronic stress physiology, hypervigilance, trauma responses, inflammatory signalling, neurotransmitters and autonomic imbalance. And all of these absolutely matter. Sleep is deeply physiological.

But traditional herbal systems have long observed something else too: that emotions live in the body. Not metaphorically. Physically. What we block ourselves from feeling and expressing gets pushed down and stored in the body. Literally being deposited in the muscles, organs, tissues and the very cells that make up our physical selves. Grief changes breathing. Fear changes muscle tension. Suppressed anger alters hormones and nervous system signalling. Chronic stress changes digestion, inflammation, blood sugar regulation and sleep architecture itself. A nervous system that does not feel safe, and is constantly in alert mode rarely allows deep surrender.

And this is where herbal allies become far more interesting and far more nuanced than simply "natural sleeping pills." Because many traditional herbalists do not see sleep herbs as medicines that force unconsciousness. They are often seen instead as plants that help soften the internal conditions preventing rest in the first place. Not sedation, but release. Not suppression, but permission. Plants have energetic vibrations that can help release stuck energy in the body and bring the body back to a state of equilibrium. This is one of the reasons I believe there is such a difference between the products I make and the capsules, tablets and natural pills available in the 'herbal world'. Herbal medicines made by machines will never be able to match the effects produced in the body, when compared to herbal allies prepared in relationship with the plants themselves and with integrity and respect.

Sleep is not just physical. This is one of the things I believe we often miss in modern discussions around insomnia, is that human beings are not machines. We are emotional beings. Relational beings. Electrical beings. Hormonal beings. Energetic beings. The body remembers everything. It remembers heartbreak. Stress. Grief. Shock. Self-silencing. Survival. Burnout. Years of staying strong. Years of holding everything together. Years of swallowing ourselves and our truth. And eventually, our nervous systems adapt to these states.

Some people become permanently "on." Always listening. Always thinking. Always anticipating. Always scanning. Always trying to regulate others emotions just so we can feel safe. The fallout from this can remain with us, even in stillness. Over time the body can forget how to fully downshift, and this is why so many people describe themselves as: "tired but wired."

Exhausted physically. Alert neurologically.

The body wants to sleep. The nervous system won't let it.

Many traditional systems, including Western herbalism, Traditional Chinese Medicine and Ayurvedic medicine have long observed that different plants seemed to have affinities for different emotional and nervous system states. Not because herbs are magical cure-alls, and not because your emotions are "all in your head." But because the body, mind and nervous system are inseparable from one another. Modern research now validates much of the physiology behind this: chronic stress increases cortisol and adrenaline. Unresolved stress alters vagal tone. Hypervigilance changes sleep architecture. Inflammation influences neurotransmitters. Emotional suppression and the swallowing of self increases sympathetic nervous system activity. Chronic anxiety alters GABA signalling and nervous system excitability. And honestly, this list could be a lot longer.

Traditional herbalists simply described these same patterns using different language. The eclectic herbal physicians called it stagnation, heat, constriction, exhaustion, depletion, disturbed spirit and loss of flow. And then they observed which herbal allies helped restore balance back to the body.

My favorite herbs that help with sleep and also move energy through the body are Valerian, Skullcap and Passionflower. It should be noted that Valerian is a very powerful herbal ally, and personally I feel she needs to be tempered with Passionflower and Skullcap, but some people prefer to work with her energy alone. She is deeply grounding and pulls the energy out of the mind back into the body. For me, I find Valerian far too strong and Passionflower and Skullcap are all I need when I have trouble sleeping. A few drops of each and I am asleep. This is the reason why I offer these three herbs available as a combo in my Sleep Tonic or available as separates so you can mix what you prefer.

Valerian is fascinating because she is not always a soft herb emotionally. She is earthy. Heavy. Grounding. As I said above. Very powerful. You can feel that in her energy. It feels dreamlike. Traditionally valerian has often been associated with excess nervous excitation, agitation, tension and the inability to settle downwards into the body. Some herbalists describe valerian as a plant that pulls energy down out of the mind, as I mentioned above.

Not everyone experiences valerian the same way, but for many people she calms states of gripping, muscular tension, nervous agitation, overstimulation, internal buzzing and emotional energy patterns that have been stored in the body. Modern research suggests that valerian root interacts with GABA pathways involved in nervous system calming and sleep regulation. But energetically, many herbalists experience something beyond simple sedation. Valerian helps the body release its grip. And I find that often people do not realise how tightly they have been holding themselves until something finally allows them to soften.

Passionflower to me feels entirely different. Where Valerian grounds downward, Passionflower often feels more like untangling. It's no accident she is a vine! Traditionally she was used for: circular thinking, emotional, restlessness, racing thoughts, overstimulated mental activity and difficulty in "switching off" Many people with insomnia are not physically awake, they are mentally awake. And there is a difference. The body is exhausted while the mind continues moving and will not stop. Planning. Replaying. Analysing. Anticipating. We have all been there at some stage.

Passionflower has long been associated with softening this internal looping. And she is so effective at doing this. I find her absolutely amazing. She doesn't erase thought, but loosens the overactivity that prevents surrender into sleep.

Skullcap is one of the herbs I think of most often for modern life, because so many people are not simply stressed. They are neurologically exhausted. There is a particular kind of tension that comes from remaining emotionally alert for too long. Years of responsibility. Years of vigilance. Years of carrying too much, and sometimes as a result of that tension there is often associated depletion.

Skullcap has traditionally been associated with the state of "frayed nerves." The person who cannot fully relax anymore because the nervous system has forgotten how. Energetically Skullcap often feels less sedating and more restorative, almost like a hand placed gently on your shoulder telling you everything will be ok.

Sometimes the body cannot sleep because something inside us has never been allowed movement, this does not mean insomnia is imagined. Far from it. The physiology is real, but our emotions alter physiology constantly. Suppressed anger increases sympathetic activation. Chronic fear increases cortisol. Grief changes inflammatory signalling. Emotional restraint increases muscular tension and hypervigilance. Even the act of "holding it all together" is physiological. The body pays for this suppression.

This is why many people notice emotions surfacing when they finally begin resting deeply, it can come in the form of: vivid dreams, crying unexpectedly, emotional release, memories resurfacing, tenderness, exhaustion and nervous system discharge. Sometimes when the nervous system finally feels safe enough to soften, what was being held underneath becomes visible.

And I think plants can help create the conditions for that softening. They enable us to start letting go.

One of the biggest misunderstandings around insomnia is the idea that sleep begins at bedtime. It does not. Sleep is built all day long through: nervous system regulation, blood sugar stability, our mineral status, inflammation levels, stress loads, emotional processing, light exposure, movement, digestion and our hormonal balance. The body needs signals of safety and rhythm, without them, the nervous system remains alert.

Certain nutrient deficiencies can profoundly affect our sleep quality and our nervous system regulation. Magnesium is one of these nutrients. Magnesium is involved in hundreds of biochemical reactions and plays a major role in muscle relaxation, nervous system regulation and GABA activity. (I recommend Magnesium glycinate for sleep) Also low: B Vitamins: Especially B6, folate and B12 which are involved in neurotransmitter production and nervous system function.

Blood sugar instability during the night can also trigger cortisol and adrenaline release at the wrong times, waking the body suddenly and often happens to people at 3am. This is why chronically under-eating, restrictive dieting or unstable blood sugar patterns can worsen insomnia dramatically.

Potassium, sodium and calcium all influence nervous system signalling and muscle relaxation and are also nutrients that may need to be considered. Personally, I do not take supplements. I like my nutrients in wholefood form, so I reach for green powders etc when I feel I may need a nutritional boost. But you should do what feels right for you.

Sometimes exhaustion is not only emotional. Sometimes the body is genuinely depleted. One thing I see often is people attempting to heal sleep while unintentionally dysregulating blood sugar. Skipping meals. Running on caffeine. Eating very little protein. Undereating carbohydrates entirely. When blood sugar drops too low overnight, the body releases stress hormones to bring glucose back up. That surge can appear as: waking at 2–4am, anxiety at night, pounding heart, vivid dreams and the inability to fall back asleep. The body interprets blood sugar instability as a threat. And once again, the nervous system remains alert.

The modern world is also anti-sleep. Artificial light, constant stimulation, stress, phones, emotional overload, news cycles, financial pressure, disconnection from nature and hyper-productivity. Our modern nervous systems become overwhelmed. Human biology naturally evolved around darkness, stillness, rhythm, community and the natural cycles of life. Now many people move from stress directly into bed and expect the nervous system to instantly shut off. But the body often needs transition. Softening. Ritual. Signals of safety.

And this where the forgotten medicine of ritual comes in. This is one reason I believe herbal medicine can become so powerful. Not only because of phytochemistry, not only because of energetics, but because herbs invite relationship. The act of making herbal brews. Taking tinctures slowly. Lighting a candle. Stepping away from screens. Creating evening rituals. All of this communicates something to the nervous system: "You are safe enough to rest now."

That matters.

Deeply.

I do not personally see sleep herbs as simply sedatives. I see them as our green relations that support our bodies in remembering what softness feels like. Plants that help loosen constriction. Plants that help quiet internal vigilance. Plants that nourish exhausted nervous systems. Plants that create the conditions where rest becomes possible again. And sometimes true rest is not just physical. Sometimes it is emotional too. Sometimes healing begins the moment the body finally realises it no longer has to stay braced inside of life.

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