Essential Oils & Breath: Evidence-Based Holistic Stress Relief for Modern Life
How We Breathe Could Also Affect How We Feel
Breathing doesn't just fill our lungs with oxygen and help us stay alive, it could also affect the way we think and feel.
Did you know that in the UK 47% of us can't cope with life due to stress and on top of that stress can cause 60% of illnesses and disease (not to mention skin flare ups - a stress in itself to manage!) . I think it's about time we start to listen to our bodies before they break!
Smell has one of the fastest and most direct pathways to the brain. Unlike the other senses, olfactory signals bypass the thalamus and connect directly to the limbic system — including the amygdala and hippocampus, the areas responsible for emotion, memory, and stress response.
Human neuroscience research has demonstrated that nasal inhalation immediately modulates electrical activity in these emotional brain centres, directly influencing fear processing, emotional regulation, and cognitive function (Zelano et al., 2016).
Clinical aromatherapy trials also show that inhaled essential oils can reduce physiological stress markers, including blood pressure, heart rate, and cortisol levels, supporting a shift from “fight or flight” toward “rest and digest” (Kim et al., 2012).
While exact timing varies between individuals and oil chemistry, the brain–nose–nervous-system connection allows scent to influence emotional state rapidly — within moments of inhalation, especially when combined with slow, conscious breathing.
Here are a few of my tips that have helped me deal a little better with stress:
- Breathing from my diaphragm and not shallow breathing with breathing techniques. Box breathe example: visualise a box draw each side, inhale for 4 counts, pause for 4, exhale for 4, pause for 4 and do this until you feel more you.
- Essential Oils - I have created sets to be with you throughout your day to promote calm. A smell reaches the amygdala part of the brain in 22 seconds calming our fight or flight response to "rest and digest". The greatest thing about oils you can blend your own super power or what you love as an aroma - no one size fits all (want to add an extra drop of lavender your fave...why not!). Also how you breathe it in you can use a diffuser, facial steam, face oil, bath, inhale straight from the bottle for a quick fix!
“When we inhale essential oils, especially certain ones that can create a sense of calm and peace, these oils can quickly stimulate our bodies to influence our emotions through olfactory receptors in our nose that can stimulate the brain in 22 seconds,” Jaclyn Tolentino, senior doctor at Parsley Health. “Essential oils used via aromatherapy can also have an effect on the body’s endocrine system. For example, the cortisol hormone is often heightened during anxiety, and a series of slow breaths with the aroma of an essential oil can calm down the cortisol response (the stress hormone) and create a grounding and soothing effect.”
Pillow talk: A few drops on your pillow.
Quick fix: A few deep inhalations from the bottle or on our keyring diffuser.
Roller Ball: 10 drops in our roller ball with sweet almond oil.
Shower: Add 2-3 drops of each to the corner of the shower and enjoy the benefits of steam inhalation.
Bath: Add 6 drops to a tsp of base oil (sweet almond) to the bath.
Hand or foot bath: Add 6 drops to a tsp of base oil (sweet almond) to a bowl of water.
Steam Treatment: Add 2 drops of each essential oil to a bowl of steaming hot water. Place your face close to the bowl and cover the back of your head and bowl with a towel to trap the aromatic vapours.
Aroma diffuser directions with blend your own pure oil sets:
- Yoga is incredible I teach @beckys_body_balance which is a mix of yoga, tai chi and pilates to music. I love the connection and space we hold together in class and boosting flexibility, strength the endorphins too whilst understanding breathing to get through especially the pilates tracks with core - exhale out through the mouth on the tough bits.
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Face Yoga - not only great to help skin glow and wrinkles, face yoga is great mindful practice with blend your own face oil and breathing in the scent. Time out to blend to your skin type and time to relieve stress in the face muscles, Carelle @fireflyformula is amazing at showing techniques using face oil sets. Have you ever heard some one say don’t put anything on your skin you wouldn’t eat? Did you know the skin is our largest organ and will absorb anything you pop on into your bloodstream, lets stick with natural products and if you blend your own you know whats in them. -
Journaling with my diffuser - I pop on my diffuser for 30 minutes and take in a deep inhale. I anchor my thoughts of the highlights of the week or remove any negative ones by popping down on paper! Self care Sunday is the best time to reflect for me. A few journal prompts for you:- ONE :: This week I want to feel…
- TWO :: My intention for this week is…
- THREE :: My focus for this week is…
- FOUR :: Where do I need to create space this week?
- FIVE :: This week I will care for myself by…
- Sleep and eating patterns - so your body always know when you are getting ready for bed and being fuelled. We give our kids a night time routine why don't we? I love to remove myself from blue screen lights (TV/Phone) at least an hour before bed, breathe in a Rest Calm oil set while massaging my skin (used with a sweet almond oil base oil) 6 drops of pure essential oil to 1 tablespoon and pop myself (slippy!) into an epsom salt bath for 20 mins great to help you sleep with magnesium to add too. Also I eat at regular times so my body has a routine - no caffeine past midday. Bath recipe here
Breathing affecting how we think and feel - The Science Part
According to a new study, researchers have discovered that the rhythm of our breathing creates electrical activity in the human brain, and the effect is slightly different depending on if we use our mouth or nose to breathe, and if we're inhaling or exhaling.
This activity was seen in three areas of the brain: the piriform (olfactory) cortex, which processes smells; the hippocampus, which controls memory; and the amygdala, which is tied to emotional processing.
"One of the major findings in this study is that there is a dramatic difference in brain activity in the amygdala and hippocampus during inhalation compared with exhalation," says neurologist Christina Zelano.
"When you breathe in, we discovered you are stimulating neurons in the olfactory cortex, amygdala, and hippocampus, all across the limbic system."
Why Stress Matters and How It Impacts the Body
Stress is the body’s natural response to challenges, but chronic stress can disrupt hormones, sleep, cognition, and immunity. Key stress hormones like cortisol, adrenaline, and vasopressin prepare us for “fight or flight.” However, when consistently elevated, they can affect mood, memory, skin, and overall health.
Understanding the science behind stress allows us to approach prevention and relief proactively, rather than only reacting when symptoms arise. (PMID: 23259002).
How Essential Oils Support Stress Relief
Essential oils are plant compounds with therapeutic properties that can influence mood and hormones. Research shows that inhaling essential oils can stimulate the olfactory system and limbic brain, affecting stress response in as little as 22 seconds Understanding the science behind stress allows us to approach prevention and relief proactively, rather than only reacting when symptoms arise (Tolentino, Parsley Health). Research shows that oils like lavender, neroli, and citrus blends can reduce cortisol, improve mood, and support relaxation (PMID: 25024731; PMID: 41177368).
Science-Backed Oils for Stress Management
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Lavender (Lavandula angustifolia): Reduces cortisol, promotes calm, and supports sleep (Malcolm & Tallian, 2018).
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Sweet Orange (Citrus aurantium dulcis): Uplifts mood and eases anxiety (Lekamge et al., 2017).
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Frankincense (Boswellia carterii): Grounds the mind, improves concentration, and reduces stress biomarkers.
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Bergamot (Citrus bergamia) & Neroli (Citrus aurantium): Lower cortisol and blood pressure; support relaxation (Choi et al., 2014).
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Ylang Ylang (Cananga odorata) & Geranium (Pelargonium graveolens): Balance the nervous system and hormonal regulation.
Essential oils can be used through diffusion, topical application, or ritualised self-care routines to integrate stress management into everyday life.
Symptoms of Stress and Targeted Essential Oils
| Symptom | Implicated Hormone | Essential Oils for Support |
|---|---|---|
| Sleep issues | Increased cortisol | Lavender, Ylang Ylang, Roman Chamomile, Neroli, Frankincense |
| Fatigue | Increased catecholamines | Sweet Orange, Rosemary, Frankincense, Eucalyptus, Peppermint, Lemon |
| Cognitive/Memory issues | Decreased catecholamines | Rosemary, Peppermint, Basil, Sage, Vetiver, Lime, Frankincense |
| Anxiety/Depression | Increased cortisol | Lavender, Bergamot, Clary Sage, Frankincense, Lemon, Peppermint |
| Migraine | Increased cortisol | Peppermint, Lemon, Lavender, Sweet Orange, Mandarin |
| Digestive issues | Cortisol & Vasopressin imbalance | Peppermint, Ginger, Fennel, Clary Sage, Grapefruit, Oregano, Coriander |
| Hormonal imbalance / Low libido | Decreased catecholamines | Rose, Jasmine, Neroli, Ylang Ylang, Geranium |
| Skin issues (Acne, Rashes, Aging) | Increased cortisol | Frankincense, Lavender, Tea Tree, Geranium, Rosehip, Chamomile |
Practical Aromatherapy: A Case Study
Client Profile: Jenny, 46, experiencing perimenopausal stress, migraines, sleep disruption, and fatigue.
Routine Designed:
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Migraine Relief: Rollerball blend of Lavender & Peppermint applied to acupressure points.
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Anxiety Support: Diffuser blend of Lavender, Sweet Orange, Frankincense.
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Fatigue Management: Diffuser blend of Eucalyptus, Lemon, Peppermint; paired with mindful movement and tea break.
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Sleep Support: Bath blend & body oil with Lavender, Geranium, Frankincense, Roman Chamomile, Bergamot, Ylang Ylang.
Results:
After a month, Jenny reported improved sleep, reduced anxiety, and increased energy, demonstrating the effectiveness of a structured, preventative self-care routine (PMID: 41177368).
How to Integrate Essential Oils Into Daily Life
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Create a Daily Ritual: Diffuse oils, massage with a body blend, or add to bathwater.
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Target Specific Symptoms: Address sleep, fatigue, anxiety, digestive issues, and hormonal imbalances.
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Practice Mindfulness: Focus on scent and deep breathing to enhance relaxation.
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Combine with Holistic Practices: Hydration, nutrition, movement, journaling, and self-care routines.
Trustworthy, Evidence-Based Aromatherapy
At B Calm, our essential oils and blends are designed for stress relief, hormonal balance, and overall wellbeing. As a registered clinical aromatherapist, I combine scientific research, clinical experience, and practical guidance to help individuals integrate aromatherapy into their daily lives.
Access my full research, case studies, and clinical references here

Please let me know if there are any other tips to help you have a stress less lifestyle? Living stressed is not living.
p.s I'm also starting to read Unstressable Book by Alice Law and Mo Gawdat - guide to stress free living - perfect tips too!
Scientific References
Exact response time to inhaled aroma varies depending on individual physiology, oil composition, breathing pattern, and nervous system state.
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Zelano, C. et al. (2016). Nasal Respiration Entrains Human Limbic Oscillations and Modulates Cognitive Function.
Journal of Neuroscience, 36(49), 12448–12467.
👉 https://pubmed.ncbi.nlm.nih.gov/27927961/ -
Kim, I.H. et al. (2012). Effect of Essential Oil Inhalation on Blood Pressure and Salivary Cortisol Levels in Prehypertensive and Hypertensive Subjects.
Evidence-Based Complementary and Alternative Medicine.
👉 https://pubmed.ncbi.nlm.nih.gov/23259002/ -
Masuo, Y. (2021). Neural and Hormonal Mechanisms of Olfactory-Induced Stress Reduction.
Frontiers in Neuroscience.
👉 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124235/

