The science of emotions
Your emotions aren’t irrational. They’re intelligent messengers.
- 01
The dismissal of emotions in modern medicine - 02
It’s not woo, it’s biology - 03
The chemistry of emotion - 04
The nervous system: stuck in survival - 05
The power of the subconscious - 06
Your genes are listening - 07
What happens in childhood doesn’t stay there - 08
The frequency of emotion - 09
The water within - 10
Two pioneers — Dr. Gabor Maté and Dr. Bruce Lipton - 11
The inheritance of emotion
What if your emotions weren’t something to fix, fight, or push away — but signals trying to get your attention?
Emotions are not random disruptions to your day. They are biochemical messengers, woven into your body’s communication systems. Every feeling triggers a cascade of physiological responses — influencing your hormones, shifting your gene expression, shaping your long term physical and emotional wellbeing.
When we suppress, ignore, or override our emotions — because we were never taught how to feel them safely or because we learned to fear them — that communication doesn’t disappear. It builds. It amplifies. And eventually the body speaks louder, through symptoms, imbalance, and disease.
What follows is a comprehensive look at the science of emotions — drawing from decades of research on how emotions affect the nervous system, immune function, hormonal balance, gene expression, and the vibrational frequency of the body itself.
Whether you’re just beginning to explore the mind body connection or you’re already deep in the work, this is here for reference. Read it through, or use the table above to find what you need.
The dismissal of emotions in modern medicine
For decades, our healthcare system has operated with a rigid, reductionist model: find a symptom, suppress it. Find a malfunction, medicate it.
Rarely do we ask why the symptom showed up to begin with.
If you’ve ever raised the topic of emotions contributing to physical wellness, you may have experienced the quick dismissal. The eye roll. The recommendation for a prescription, an SSRI for the anxious thoughts, the referral to basic talk therapy. At worst, the conversation shut down completely.
Why?
Because when something isn’t mainstream — or threatens profit, or worse, offers people the possibility of needing the system less — it gets dismissed. And unless a practitioner has sought out training specifically on the connection between emotions and physical health, it isn’t taught. It isn’t considered worth pursuing.
But people are waking up. We’re beginning to ask better questions. And the science is finally catching up to what many have intuitively known for centuries: emotions matter, and they belong at the center of healing — not at the margins of it.
In Western culture, the idea that emotions influence physical health still feels novel. Sometimes taboo. In Eastern and ancient traditions, the interconnectedness of emotional, mental, and physical wellbeing has been foundational for thousands of years. Traditional Chinese Medicine, Ayurveda, Indigenous healing — all have long recognised that unresolved emotion disrupts the flow of energy and shows up as illness.
This isn’t woo.
To say there’s a direct relationship between mind, emotion, and physical body still feels radical to some. Witchy. Out there. Like standing in front of a firing squad waiting to see what gets shot down.
Because how dare we believe we can help ourselves. That we can recover from a diagnosis or alleviate long standing symptoms on our own. That we are powerful enough to uncover the source of our own suffering and mend the wound.
Without — or sometimes alongside — medical intervention.
That’s just preposterous. Or is it? Is that just a belief we’ve long held that should be questioned?
Most certainly, yes.
It’s not woo, it’s biology
I don’t believe emotions alone are the magic bullet to healing. But I also don’t believe we can keep treating them like they’re irrelevant or just in your head.
Because emotions are in your head. And your heart. Your gut, your hormones, your immune system, your cells.
They are biological. Chemical. Physical. Energetic. They shift your hormones. They alter gene expression. They determine how you experience and respond to stress. They influence the onset of chronic illness. And they are one of the most under recognised forces in your health.
The chemistry of emotion
Every emotion you feel triggers a biochemical response in the body — real, tangible physiological effects. This isn’t spiritual theory. The science about the relationship between emotions, chemical reactions, and hormones is well established in the scientific community.
Cortisol rises during stress, preparing the body for danger while suppressing digestion and immunity. Prolonged cortisol slows cellular repair, energy production, sleep, and nutrient absorption.
Adrenaline gives the body a shot of energy to respond to perceived threat — fight, flight, freeze, or fawn.
Serotonin, dopamine, and oxytocin are the feel good hormones released during happiness, contentment, connection, and wellbeing.
Endorphins are released by joy, peace, and love. They reduce stress and have been shown to promote cellular healing.
Over time, chronic emotional stress keeps the body in a constant state of emergency. You don’t get to heal when your nervous system believes your survival is at risk.
Stress is now widely acknowledged as a major contributor to migraines, fibromyalgia, rheumatoid arthritis, IBS, and heart disease. Prolonged states of negative emotion can worsen symptoms and contribute to serious illness, including cancer. Research has shown prolonged stress increases the risk of cardiovascular disease by 40% and lowers immune function by up to 70%.
Here’s what a stuck stress response looks like as it cascades through the body — altering gene expression, eventually surfacing as physical symptoms:
- Chronic inflammation
- Hormonal imbalances
- Digestive disorders
- Sleep disturbances
- Autoimmune flare ups
- Heart disease
- Burnout
- Cancer
Every system in your body suffers when you live in a state of prolonged emotional dysregulation. And yet we rarely trace the symptoms back to their emotional roots.
The nervous system: stuck in survival
Your body’s built in alarm system has two main modes.
Sympathetic — survival mode: fight, flight, freeze, fawn.
Parasympathetic — healing mode: rest, digest, repair.
In a healthy regulated state, your body moves between these systems fluidly. You respond to a challenge, then return to calm. Peter Levine, in his book Waking the Tiger, demonstrated how animals move between states — using a physiological shake to release the energy of survival and return fully to healing.
Humans tend to get caught. Stuck in the energy of an emotion. Unable to fully move out of fight, flight, or freeze.
Research shows we operate from the subconscious 95% of the day. Only 5% from the conscious mind. The subconscious is largely an automated state — and 70% of it is programmed with negative emotions, thoughts, and beliefs. That’s why it’s so easy to spiral and so hard to climb out.
Think of the subconscious as a ski hill. Looking down from the top, you see the paths already carved by previous skiers. It’s far easier to take what’s familiar than to make a new path. The subconscious will choose the existing path seven times out of ten — even when that path is negatively inclined.
We stick to what’s familiar and safe, even when it’s hurting us. Here’s how the mental, emotional, and physical work together to create the negative feedback loop:
- A long term relationship ends. The breakup is painful.
- A memory from the past surfaces and triggers an old belief — I’m not good enough.
- Negative thoughts spiral about your worth, your role, your fault.
- Those thoughts fuel emotion — fear, worthlessness, hopelessness.
- The fear creates a physical response — tightness in the chest, anxiety, digestive distress, racing heart, fatigue, panic.
- Without recognising the emotional signals, you can’t shift back into healing.
The good news: although your emotional state and thoughts shape your physical reality, you can return to the root of where the pattern began. You can reprogram beliefs, resolve memories, and shift the attachments that have been keeping you stuck. No state is permanent.
The power of the subconscious
Most people believe they’re living consciously, making decisions based on logic and free will. Neuroscience reveals a different truth: 95% of behaviour is driven by the subconscious. Only 5% is conscious thought.
The subconscious is the storehouse of all learned behaviours, emotional responses, beliefs, habits, and experiences. Most of which formed in childhood. Most of which we have no awareness of.
Have you ever driven home and realised you don’t remember the last five minutes of your drive? You stopped at red lights, made the turns, pulled into the driveway — without thinking. That’s your subconscious. It runs on autopilot.
This is helpful in many ways. It conserves energy. Lets us perform daily tasks efficiently. It becomes a problem when the programs running in the background are outdated, disempowering, or harmful.
Dr. Bruce Lipton, cell biologist and author of The Biology of Belief, found that approximately 70% of subconscious programming received before the age of seven is negative, limiting, or fear based. Beliefs like:
- I’m not good enough
- The world isn’t safe
- I have to earn love
- I’m unworthy
- My needs don’t matter
- I’m a burden
These beliefs shape emotional responses, relationships, health, and how we show up in the world. Because they’re subconscious, we often don’t even realise they’re operating.
Your genes are listening
When the Human Genome Project was completed in 2003, we expected the answers to be in our DNA. What scientists discovered was different.
Only 5 to 10% of disease is directly caused by genes. The remaining 90 to 95% is something else: epigenetics. The study of how environment, behaviour, and emotion can switch genes on or off.
Our genes are not fixed. They are highly dynamic. They respond to internal and external signals, and they change all the time.
External signals: the way you perceive your world. Sensory and interactive experience.
Internal signals: blood, hormones, emotions — your thoughts, beliefs, judgements, and feelings.
Your genes are like the blueprint of a house. How that house is built, remodelled, or damaged depends on how the blueprint is interpreted. Emotional stress is one of the most powerful interpreters.
Studies show chronic emotional states like fear, grief, or anger can change gene expression, increasing vulnerability to illness, anxiety, and depression. Emotional states like safety, love, and gratitude can upregulate healing genes. Diet, movement, relationships, and connection to nature all influence which genes turn on.
This isn’t hypothetical. This is your biology responding to your inner world.
What happens in childhood doesn’t stay there
It’s not just in your head. It’s in your nervous system, your tissues, your immune function, your genes. The tightness in your chest. The migraines. The gut issues. The loop of anxiety that keeps you awake at night. These aren’t random. They’re remnants of what the body had to carry when your voice was silenced, when safety was absent, when connection came with a cost.
And there’s data to prove it.
The ACE study — Adverse Childhood Experiences — was one of the largest public health studies in history. It confirmed what many of us feel intuitively: childhood trauma doesn’t just affect emotions. It reshapes the body, the brain, and long term health.
Developed by the CDC and Kaiser Permanente, the ACE questionnaire identifies ten common early life stressors — abuse, neglect, household dysfunction. The higher your ACE score, the more likely you are to experience physical illness, emotional struggle, and chronic conditions later in life.
- A person with 4 or more ACEs is 2x more likely to develop cancer and 12x more likely to attempt suicide.
- ACEs dramatically increase the risk for autoimmune disease, heart disease, addiction, depression, anxiety, and early death.
- Emotional suppression and toxic stress during development alter how genes express, how hormones regulate, and how inflammation moves through the body.
When emotional wounds go unresolved, the nervous system adapts — by staying alert, by shutting down, by hardening. This isn’t weakness. It’s biology doing its best to protect you.
Chronic, unprocessed stress from childhood overactivates the HPA axis, flooding the body with cortisol and adrenaline. It alters brain structure — particularly the amygdala, prefrontal cortex, and hippocampus. It suppresses immune function, elevates inflammation, dysregulates hormones. It creates epigenetic shifts that silence protective genes and activate stress pathways. Sometimes for generations.
You’re not broken. Your body adapted beautifully to what it was handed. But if you’re still stuck in that survival loop, disconnected from safety, replaying patterns that don’t feel like yours — it might be time to get curious about what’s underneath.
That’s where the science of emotions meets the work of actual healing.
The frequency of emotion
Every emotion you experience carries a signature frequency. This is not metaphor. It’s measurable. Emotions emit vibrational energy, and that energy interacts with your body and environment.
Like attracts like. Frequencies attract other frequencies of similar resonance. Higher frequency emotions like love, joy, and gratitude carry lighter, more expansive energy. Lower frequency emotions like shame, guilt, or blame carry denser, heavier vibrations.
Dr. David R. Hawkins mapped these frequencies in what’s known as the Map of Consciousness. His research showed:
- Shame at 20 Hz
- Guilt at 30 Hz
- Fear at 100 Hz
- Courage at 200 Hz
- Love at 500 Hz
- Joy at 540 Hz
Low frequency emotions don’t just pull your energy down. They act like magnets, attracting more of the same. Emotional states don’t exist in a vacuum. They reverberate.
Low frequency states tend to attract not just similar emotions and thoughts but also physical matter that vibrates at the same frequency. Bacteria, viruses, parasites, heavy metals, mould — all have low resonant frequencies. When you remain in prolonged states of fear, grief, shame, or blame, you create an inner terrain that’s more welcoming to lower frequency organisms and toxins.
This gives a whole new meaning to vibration affecting health. Your emotional state is a biological tuning fork. It sets the tone for your body’s energetic field, your immune system, your cellular resilience.
Often clients come in more open to working in the physical realm first — addressing mould, pathogens, toxins, lifestyle. As they do, they become aware of the emotions surfacing alongside the physical work. Lower frequency emotions stored at the same level as the toxins being eradicated.
Once a person clears the physical and emotional residue, they resonate at a higher frequency — physically, emotionally, mentally, spiritually. The reverse is also true. Transform the denser emotions and the body often experiences a physical purge — toxins, pathogens, bacteria releasing in parallel.
The water within
Dr. Masaru Emoto, a Japanese researcher, became known for his experiments on the effect of emotional energy on the molecular structure of water. Water exposed to loving, positive words and intentions formed beautiful, symmetrical crystalline structures when frozen. Water exposed to hateful, negative messages created distorted, chaotic patterns.
His work has been controversial in some scientific circles. But it opened an important conversation: if water is capable of storing emotional imprint, what does that mean for the human body, which is composed of roughly 60 to 70% water?
If emotional energy affects water, and we are largely made of water — how are our thoughts, words, and emotional states impacting the very fabric of our physiology? Our tissues, cells, blood, the fluid around our brain — all primarily water based. If emotional energy affects water, it follows that chronic exposure to fear, stress, anger, or hopelessness would leave a physiological residue.
Whether or not you fully accept Emoto’s findings, the metaphor alone is powerful. Your body is listening. What you say — to yourself and others — matters at a level deeper than mindset or mood.
Two pioneers — Dr. Gabor Maté and Dr. Bruce Lipton
Dr. Gabor Maté: the emotional roots of illness
Dr. Gabor Maté is a physician specialising in addiction, palliative care, and chronic disease. He has spent over 30 years observing how emotional patterns — especially those formed in early childhood — manifest as physical illness later in life.
In his book When the Body Says No, Maté demonstrates how suppressed emotions, unprocessed trauma, and the compulsion to meet others’ needs at the expense of our own create chronic stress patterns. These patterns shape the nervous system and immune function — often leading to autoimmune disease, cancer, fibromyalgia, IBS, and neurological disorders.
Maté found recurring emotional themes in patients with disease. People with ALS, MS, and cancer often had difficulty expressing anger or setting boundaries. Autoimmune patients frequently put others’ needs ahead of their own and internalised guilt or unworthiness. Women with breast cancer in his case studies often lived for others and repressed personal needs.
He emphasises that trauma isn’t just what happened to us. It’s what happens inside us because of what we couldn’t express, process, or release. To heal, we must face the truth of our emotions, stop abandoning ourselves, and reconnect with the unmet needs that were never acknowledged.
Dr. Bruce Lipton: the biology of belief
Dr. Bruce Lipton, a stem cell biologist and author of The Biology of Belief, offers a scientific explanation for how perception, belief, thoughts, and emotion become the chemical environment that cells live in.
His research showed that cells respond to signals in their environment — not just the DNA inside them. What shapes that environment more than anything? Beliefs, perceptions, emotional state.
Stress hormones like cortisol shut down cell growth, repair, and immune function. Positive emotional states like love, safety, and joy release chemicals like oxytocin and dopamine that encourage healing, neuroplasticity, and regeneration. Limiting beliefs and unresolved trauma alter gene expression — turning disease promoting genes on, silencing protective ones.
Lipton famously says we operate 95% of our lives from the subconscious mind, which is shaped before age seven. If those early years were filled with fear, instability, or rejection, the subconscious continues to replay those patterns — keeping our biology locked in survival mode.
This is why affirmations alone often don’t work. They’re trying to change a program that runs deeper than surface thought. The subconscious can and will resist conscious change, especially where there are deep negative patterns.
True healing requires reprogramming subconscious beliefs through somatic release, energy work, inner child healing, and conscious rewiring.
The inheritance of emotion
Beyond your personal life experiences, there is another layer of emotional health often overlooked. The emotional imprints inherited from your ancestors.
Emerging science in epigenetics and trauma studies confirms what ancient cultures have long known. Unhealed trauma doesn’t just disappear. It gets passed down.
At the moment of conception, you inherit more than your parents’ DNA. You inherit their emotional imprints — the unresolved grief, fear, shame, and survival mechanisms shaped by their lives. These patterns can originate generations back. From ancestors who lived through war, famine, displacement, addiction, racism, slavery. These aren’t abstract historical concepts. They are lived experiences stored in the nervous systems of your lineage.
This doesn’t mean you’re doomed to carry the pain of the past. The opposite. It means you have the opportunity — and the responsibility — to heal it.
Rather than seeing ancestral trauma as a burden, you can choose to view it as a sacred invitation. To meet what was previously unmet. To feel what was previously unfelt. To put down what generations before you carried, so the line behind you doesn’t have to keep carrying it.
Ready to do this work?
If something here landed — a sentence, a paragraph, a recognition — that’s the doorway. The next step is a free 30 minute conversation. You bring what’s been going on. I’ll tell you what I see.