1.     Yoga breathing, meditation, and longevity: https://nyaspubs.onlinelibrary.wiley.com/doi/abs/10.1111/j.1749-6632.2009.04394.x

2.     Self-regulation of breathing as an adjunctive treatment of insomnia: https://www.frontiersin.org/articles/10.3389/fpsyt.2018.00780/full

3.     Understanding dyspnoea (read panic attack) as a complex individual experience: https://www.sciencedirect.com/science/article/pii/S0378512213001898

4.     The role of deep breathing on stress: https://link.springer.com/article/10.1007/s10072-016-2790-8

5.     The effects if deep breathing on “tension-anxiety” and fatigue in cancer patients undergoing adjuvant chemotherapy: https://www.sciencedirect.com/science/article/abs/pii/S1744388111000818?via%3Dihub  

6.     Effectiveness of diaphragmatic breathing for reducing physiological and psychological stress in adults: a quantitative systemic review: https://journals.lww.com/jbisrir/Fulltext/2019/09000/Effectiveness_of_diaphragmatic_breathing_for.6.aspx

7.     A sigh of relief or a sigh to relieve: The psychological and physiological relief effect of deep breaths: https://www.sciencedirect.com/science/article/abs/pii/S0031938416305121?via%3Dihub

8.     Rhythmic breathing: immunological, biochemical, and physiological effects on health: https://pubmed.ncbi.nlm.nih.gov/25607119/

9.     Breathing exercises for adults with asthma: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7096190/

10.  POSTURE: Breathlessness and dysfunctional breathing in patients with postural orthostatic tachycardia syndrome (POTS): The impact of a physiotherapy intervention: https://www.autonomicneuroscience.com/article/S1566-0702(19)30099-2/fulltext

11.  Exercise capacity, respiratory mechanics and posture in mouth breathers: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9443778/

12.  Stress: Endocrine Physiology and pathophysiology: https://www.ncbi.nlm.nih.gov/books/NBK278995/

13.  Pathophysiology of pain: https://www.mayoclinicproceedings.org/article/S0025-6196(12)62225-3/fulltext

14.  The Use of Breathing exercises in the Treatment of Chronic, Nonspecific Low Back Pain: https://journals.humankinetics.com/view/journals/jsr/26/5/article-p452.xml

15.  The effect of deep and slow breathing on pain perception, autonomic activity, and mood processing – an experimental study: https://academic.oup.com/painmedicine/article/13/2/215/1936333?login=false

16.  The effects of deep breathing training on pain management in the emergency department: https://sma.org/southern-medical-journal/article/the-effects-of-deep-breathing-training-on-pain-management-in-the-emergency-department/

17.  Effects of breathing exercise techniques on the pain and anxiety of burn patients: A systemic review and meta-analysis: https://pubmed.ncbi.nlm.nih.gov/36539675/

18.  Effectiveness of breathing exercises during the second stage of labor on labor pain and duration: a randomised control trial: https://www.sciencedirect.com/science/article/abs/pii/S2095496417603686?via%3Dihub

19.  Feeling bad and looking worse: Negative affect is associated with reduced perceptions of Face-Healthiness: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4178040/

20.  Anxiety disorders among children and adolescence: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6524434/

21.  Anxiety Disorders: https://www.nimh.nih.gov/health/topics/anxiety-disorders

22.  Effect of breathing exercises on respiratory indices and anxiety level in individuals with generalised anxiety disorder: a randomized double-blind clinical trial: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8989478/

23.  Psychophysiological Markers of Fear and Anxiety: https://link.springer.com/article/10.1007/s11920-019-1036-x

24.  The neurobiology of stress management: https://pubmed.ncbi.nlm.nih.gov/20150886/

25.  The Amygdala is a chemo-sensor that detects carbon dioxide and acidosis to elicit fear behaviour: https://www.cell.com/cell/fulltext/S0092-8674(09)01355-5?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867409013555%3Fshowall%3Dtrue

26.  Anxiety sensitivity, suffocation fear, and breath-holding duration as predictors of response to carbon dioxide challenge: https://psycnet.apa.org/record/1996-00404-018

27.  What is stress? A systems perspective: https://academic.oup.com/icb/article/58/6/1019/5094765?login=false

28.  Stimulation of Dorsolateral Prefrontal Cortex Enhances Adaptive Cognitive Control: A High-Definition Transcranial Direct Current Stimulation Study: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6705663/

29.  Carbon Dioxide-induced emotion and respiratory symptoms in health volunteers: https://www.nature.com/articles/npp200831

30.  Breath-hold diving: respiratory function on the longer term: https://journals.lww.com/acsm-msse/Fulltext/2011/07000/Breath_Hold_Diving__Respiratory_Function_on_the.11.aspx

31.  Mechanisms of sympathetic regulation during apnea: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6349657/

32.  Effects of slow breathing rate on heart rate variability and arterial baroreflex in essential hypertension: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6392805/

33.  Perceptions, experiences, and shifts in perspective occurring among urban youth participating in a mindfulness-based stress reduction program: https://www.sciencedirect.com/science/article/abs/pii/S1744388110000587?via%3Dihub

34.  Mindfulness-based stress reduction triggers a long-term shift toward more positive appraisals of emotional ambiguity https://psycnet.apa.org/record/2022-23857-001

35.  Autonomic nervous system correlates of posttraumatic stress symptoms in youth: Meta-analysis: https://www.sciencedirect.com/science/article/abs/pii/S0272735822000101?via%3Dihub

36.  Chapter 1 – The Autonomic nervous system: a balancing act: https://www.sciencedirect.com/science/article/abs/pii/B9780444534910000018?via%3Dihub

37.  Acute effects on heart rate variability during slow deep breathing: https://pubmed.ncbi.nlm.nih.gov/33397876/

38.  Breathing at a rate of 5.5 breaths per minute with equal inhalation-to-exhalation ratio increases heart rate variability: https://www.sciencedirect.com/science/article/abs/pii/S0167876013003346?via%3Dihub

39. “Brain over body” – A study on the wilful regulation of autonomic function during cold exposure: https://www.sciencedirect.com/science/article/abs/pii/S1053811918300673?via%3Dihub

40. Differential Carbon Dioxide Sensitivity in Childhood Anxiety Disorders and Nonill Comparison Group: https://jamanetwork.com/journals/jamapsychiatry/fullarticle/481659