1 1089 133 EFFECTS OF YOGA ON THE AUTONOMIC NERVOUS SYSTEM, GAMMA-AMINOBUTYRIC-ACID, AND ALLOSTASIS IN EPILEPSY, DEPRESSION, AND POST-TRAUMATIC STRESS DISORDER. A THEORY IS PROPOSED TO EXPLAIN THE BENEFITS OF YOGA PRACTICES IN DIVERSE, FREQUENTLY COMORBID MEDICAL CONDITIONS BASED ON THE CONCEPT THAT YOGA PRACTICES REDUCE ALLOSTATIC LOAD IN STRESS RESPONSE SYSTEMS SUCH THAT OPTIMAL HOMEOSTASIS IS RESTORED. IT IS HYPOTHESIZED THAT STRESS INDUCES (1) IMBALANCE OF THE AUTONOMIC NERVOUS SYSTEM (ANS) WITH DECREASED PARASYMPATHETIC NERVOUS SYSTEM (PNS) AND INCREASED SYMPATHETIC NERVOUS SYSTEM (SNS) ACTIVITY, (2) UNDERACTIVITY OF THE GAMMA AMINO-BUTYRIC ACID (GABA) SYSTEM, THE PRIMARY INHIBITORY NEUROTRANSMITTER SYSTEM, AND (3) INCREASED ALLOSTATIC LOAD. IT IS FURTHER HYPOTHESIZED THAT YOGA-BASED PRACTICES (4) CORRECT UNDERACTIVITY OF THE PNS AND GABA SYSTEMS IN PART THROUGH STIMULATION OF THE VAGUS NERVES, THE MAIN PERIPHERAL PATHWAY OF THE PNS, AND (5) REDUCE ALLOSTATIC LOAD. DEPRESSION, EPILEPSY, POST TRAUMATIC STRESS DISORDER (PTSD), AND CHRONIC PAIN EXEMPLIFY MEDICAL CONDITIONS THAT ARE EXACERBATED BY STRESS, HAVE LOW HEART RATE VARIABILITY (HRV) AND LOW GABAERGIC ACTIVITY, RESPOND TO PHARMACOLOGIC AGENTS THAT INCREASE ACTIVITY OF THE GABA SYSTEM, AND SHOW SYMPTOM IMPROVEMENT IN RESPONSE TO YOGA-BASED INTERVENTIONS. THE OBSERVATION THAT TREATMENT RESISTANT CASES OF EPILEPSY AND DEPRESSION RESPOND TO VAGAL NERVE STIMULATION CORROBORATES THE NEED TO CORRECT PNS UNDERACTIVITY AS PART OF A SUCCESSFUL TREATMENT PLAN IN SOME CASES. ACCORDING TO THE PROPOSED THEORY, THE DECREASED PNS AND GABAERGIC ACTIVITY THAT UNDERLIES STRESS-RELATED DISORDERS CAN BE CORRECTED BY YOGA PRACTICES RESULTING IN AMELIORATION OF DISEASE SYMPTOMS. THIS HAS FAR-REACHING IMPLICATIONS FOR THE INTEGRATION OF YOGA-BASED PRACTICES IN THE TREATMENT OF A BROAD ARRAY OF DISORDERS EXACERBATED BY STRESS. 2012 2 1882 32 REDUCING ALLOSTATIC LOAD IN DEPRESSION AND ANXIETY DISORDERS: PHYSICAL ACTIVITY AND YOGA PRACTICE AS ADD-ON THERAPIES. THE ALLOSTATIC LOAD (AL) INDEX CONSTITUTES A USEFUL TOOL TO OBJECTIVELY ASSESS THE BIOLOGICAL ASPECTS OF CHRONIC STRESS IN CLINICAL PRACTICE. AL INDEX HAS BEEN POSITIVELY CORRELATED WITH CUMULATIVE CHRONIC STRESS (PHYSICAL AND PSYCHOSOCIAL STRESSORS) AND WITH A HIGH RISK TO DEVELOP PATHOLOGICAL CONDITIONS (E.G., METABOLIC SYNDROME, CARDIOVASCULAR PATHOLOGY, INFLAMMATORY DISORDERS) AND THE SO-CALLED STRESS-RELATED PSYCHIATRIC DISORDERS, INCLUDING ANXIETY AND DEPRESSIVE DISORDERS. CHRONIC STRESS HAS NEGATIVE EFFECTS ON BRAIN NEUROPLASTICITY, ESPECIALLY ON HIPPOCAMPAL NEUROGENESIS AND THESE EFFECTS MAY BE REVERSED BY ANTIDEPRESSANT TREATMENTS. SEVERAL EVIDENCES INDICATE THAT NON-PHARMACOLOGICAL INTERVENTIONS BASED ON PHYSICAL ACTIVITY AND YOGA PRACTICE MAY ADD SYNERGIZING BENEFITS TO CLASSICAL TREATMENTS (ANTIDEPRESSANT AND BENZODIAZEPINES) FOR DEPRESSION AND ANXIETY, REDUCING THE NEGATIVE EFFECTS OF CHRONIC STRESS. THE AIM OF THIS REVIEW IS TO PROVIDE A GENERAL OVERVIEW OF CURRENT KNOWLEDGE ON AL AND CHRONIC STRESS IN RELATION TO DEPRESSION AND ANXIETY, PHYSICAL ACTIVITY AND YOGA PRACTICE. 2020 3 226 36 A SYSTEMATIC REVIEW OF RANDOMISED CONTROL TRIALS ON THE EFFECTS OF YOGA ON STRESS MEASURES AND MOOD. STRESS RELATED DISORDERS SUCH AS DEPRESSION AND ANXIETY ARE LEADING SOURCES OF DISABILITY WORLDWIDE, AND CURRENT TREATMENT METHODS SUCH AS CONVENTIONAL ANTIDEPRESSANT MEDICATIONS ARE NOT BENEFICIAL FOR ALL INDIVIDUALS. THERE IS EVIDENCE THAT YOGA HAS MOOD-ENHANCING PROPERTIES POSSIBLY RELATED TO ITS INHIBITORY EFFECTS ON PHYSIOLOGICAL STRESS AND INFLAMMATION, WHICH ARE FREQUENTLY ASSOCIATED WITH AFFECTIVE DISORDERS. HOWEVER THE BIOLOGICAL MECHANISMS VIA WHICH YOGA EXERTS ITS THERAPEUTIC MOOD-MODULATING EFFECTS ARE LARGELY UNKNOWN. THIS SYSTEMATIC REVIEW INVESTIGATES THE EFFECTS OF YOGA ON SYMPATHETIC NERVOUS SYSTEM AND HYPOTHALAMIC PITUITARY ADRENAL AXIS REGULATION MEASURES. IT FOCUSES ON STUDIES COLLECTING PHYSIOLOGICAL PARAMETERS SUCH AS BLOOD PRESSURE, HEART RATE, CORTISOL, PERIPHERAL CYTOKINE EXPRESSION AND/OR STRUCTURAL AND FUNCTIONAL BRAIN MEASURES IN REGIONS INVOLVED IN STRESS AND MOOD REGULATION. OVERALL THE 25 RANDOMISED CONTROL STUDIES DISCUSSED PROVIDE PRELIMINARY EVIDENCE TO SUGGEST THAT YOGA PRACTICE LEADS TO BETTER REGULATION OF THE SYMPATHETIC NERVOUS SYSTEM AND HYPOTHALAMIC-PITUITARY-ADRENAL SYSTEM, AS WELL AS A DECREASE IN DEPRESSIVE AND ANXIOUS SYMPTOMS IN A RANGE OF POPULATIONS. FURTHER RESEARCH IS WARRANTED TO CONFIRM THESE PRELIMINARY FINDINGS AND FACILITATE IMPLEMENTATION IN CLINICAL SETTINGS. 2015 4 2516 26 YOGA CLINICAL RESEARCH REVIEW. IN THIS PAPER RECENT RESEARCH IS REVIEWED ON THE EFFECTS OF YOGA POSES ON PSYCHOLOGICAL CONDITIONS INCLUDING ANXIETY AND DEPRESSION, ON PAIN SYNDROMES, CARDIOVASCULAR, AUTOIMMUNE AND IMMUNE CONDITIONS AND ON PREGNANCY. FURTHER, THE PHYSIOLOGICAL EFFECTS OF YOGA INCLUDING DECREASED HEARTRATE AND BLOOD PRESSURE AND THE PHYSICAL EFFECTS INCLUDING WEIGHT LOSS AND INCREASED MUSCLE STRENGTH ARE REVIEWED. FINALLY, POTENTIAL UNDERLYING MECHANISMS ARE PROPOSED INCLUDING THE STIMULATION OF PRESSURE RECEPTORS LEADING TO ENHANCED VAGAL ACTIVITY AND REDUCED CORTISOL. THE REDUCTION IN CORTISOL, IN TURN, MAY CONTRIBUTE TO POSITIVE EFFECTS SUCH AS ENHANCED IMMUNE FUNCTION AND A LOWER PREMATURITY RATE. 2011 5 2776 36 YOGA SCHOOL OF THOUGHT AND PSYCHIATRY: THERAPEUTIC POTENTIAL. YOGA IS A TRADITIONAL LIFE-STYLE PRACTICE USED FOR SPIRITUAL REASONS. HOWEVER, THE PHYSICAL COMPONENTS LIKE THE ASANAS AND PRANAYAAMAS HAVE DEMONSTRATED PHYSIOLOGICAL AND THERAPEUTIC EFFECTS. THERE IS EVIDENCE FOR YOGA AS BEING A POTENT ANTIDEPRESSANT THAT MATCHES WITH DRUGS. IN DEPRESSIVE DISORDER, YOGA 'CORRECTS' AN UNDERLYING COGNITIVE PHYSIOLOGY. IN SCHIZOPHRENIA PATIENTS, YOGA HAS BENEFITS AS AN ADD-ON INTERVENTION IN PHARMACOLOGICALLY STABILIZED SUBJECTS. THE EFFECTS ARE PARTICULARLY NOTABLE ON NEGATIVE SYMPTOMS. YOGA ALSO HELPS TO CORRECT SOCIAL COGNITION. YOGA CAN BE INTRODUCED EARLY IN THE TREATMENT OF PSYCHOSIS WITH SOME BENEFITS. ELEVATION OF OXYTOCIN MAY BE A MECHANISM OF YOGA EFFECTS IN SCHIZOPHRENIA. CERTAIN COMPONENTS OF YOGA HAVE DEMONSTRATED NEUROBIOLOGICAL EFFECTS SIMILAR TO THOSE OF VAGAL STIMULATION, INDICATING THIS (INDIRECT OR AUTOGENOUS VAGAL STIMULATION) AS A POSSIBLE MECHANISM OF ITS ACTION. IT IS TIME, PSYCHIATRISTS EXPLOITED THE BENEFITS IF YOGA FOR A COMPREHENSIVE CARE IN THEIR PATIENTS. 2013 6 1918 23 ROLE OF YOGA AND MEDITATION AS COMPLIMENTARY THERAPEUTIC REGIME FOR STRESS-RELATED NEUROPSYCHIATRIC DISORDERS: UTILIZATION OF BRAIN WAVES ACTIVITY AS NOVEL TOOL. DURING RECENT DECADES, STRESS-RELATED NEUROPSYCHIATRIC DISORDERS SUCH AS ANXIETY, DEPRESSION, CHRONIC TENSION HEADACHE, AND MIGRAINE HAVE ESTABLISHED THEIR STRONGHOLD IN THE LIVES OF A VAST NUMBER OF PEOPLE WORLDWIDE. IN ORDER TO ADDRESS THIS GLOBAL PHENOMENON, INTENSIVE STUDIES HAVE BEEN CARRIED OUT LEADING TO THE ADVANCEMENT OF DRUGS LIKE ANTI-DEPRESSANTS, ANXIOLYTICS, AND ANALGESICS WHICH ALTHOUGH HELP IN COMBATING THE SYMPTOMS OF SUCH DISORDERS BUT ALSO CREATE LONG-TERM SIDE EFFECTS. THUS, AS AN ALTERNATIVE TO SUCH CLINICAL PRACTICES, VARIOUS COMPLEMENTARY THERAPIES SUCH AS YOGA AND MEDITATION HAVE BEEN PROVED TO BE EFFECTIVE IN ALLEVIATING THE CAUSES AND SYMPTOMS OF DIFFERENT NEUROPSYCHIATRIC DISORDERS. THE ROLE OF ALTERED BRAIN WAVES IN THIS CONTEXT HAS BEEN RECOGNIZED AND NEEDS TO BE PURSUED AT THE HIGHEST LEVEL. THUS, THE CURRENT STUDY PROVIDES A REVIEW FOCUSED ON DESCRIBING THE EFFECTS OF YOGA AND MEDITATION ON ANXIETY AND DEPRESSION AS WELL AS EXPLORING BRAIN WAVES AS A TOOL FOR ASSESSING THE POTENTIAL OF THESE COMPLEMENTARY THERAPIES FOR SUCH DISORDERS. 2020 7 1590 21 MEDITATION AND YOGA CAN MODULATE BRAIN MECHANISMS THAT AFFECT BEHAVIOR AND ANXIETY-A MODERN SCIENTIFIC PERSPECTIVE. MEDITATION AND YOGA TECHNIQUES ARE RECEIVING INCREASED ATTENTION THROUGHOUT THE WORLD, DUE TO THE ACCUMULATION OF EVIDENCE BASED RESEARCH THAT PROVES THE DIRECT AND INDIRECT BENEFITS OF SUCH PRACTICES. BASED ON STUDIES CONDUCTED SO FAR, IT HAS BEEN FOUND THAT THE PRACTICE OF MEDITATION TRIGGERS NEUROTRANSMITTERS THAT MODULATE PSYCHOLOGICAL DISORDERS SUCH AS ANXIETY. THIS PAPER WILL REVIEW THE PSYCHOLOGICAL EFFECTS OF THE PRACTICE OF MEDITATION, THE ROLE OF NEUROTRANSMITTERS, AND STUDIES USING EEG AND FMRI. 2015 8 406 31 BIOLOGICAL MARKERS FOR THE EFFECTS OF YOGA AS A COMPLEMENTARY AND ALTERNATIVE MEDICINE. FROM THE LAST FEW DECADES, THERE ARE INCREASING INCIDENCES OF DISORDERS LIKE PREMATURE AGING, CARDIOVASCULAR DISEASE, MULTIPLE SCLEROSIS, FIBROMYALGIA, AND ALZHEIMER'S DISEASE IN ADDITION TO MEDICATION, RESEARCHERS HAVE FOUND THAT YOGA, A MIND-BODY THERAPY, CAN BE USED AS AN ALTERNATIVE MEDICINE. YOGA COMBINES SPECIFIC PHYSICAL POSTURES, BREATHING TECHNIQUES, RELAXATION AND MEDITATION THAT IMPROVE MENTAL AND PHYSICAL HEALTH OF THE BODY. THE PURPOSE OF THIS REVIEW IS TO COLLATE THE RESEARCH EVIDENCES CLAIMING HEALTH BENEFITS OF PERFORMING TRADITIONAL YOGIC PRACTICES. WHAT ARE THE BIOLOGICAL AND OTHER RELIABLE INDICATORS TO SUGGEST THAT DOING ASANAS, PRANAYAMA, AND MEDITATION COULD REDUCE OR TREAT WIDE RANGE OF LIFE STYLE DISORDERS ARE DISCUSSED. IMPORTANTLY, THESE INDICATORS ARE OTHERWISE USED TO ASSESS THE SEVERITY OF DISORDERS. IN MANY OF THE STUDY IT HAS BEEN SHOWN THAT YOGA IMPROVES THE REDOX HEALTH OF BODY WHOSE IMBALANCE HAS BEEN WELL PROVEN TO CAUSE MANY HEALTH COMPLICATIONS. THE IMPACT OF YOGA ON NEURODEGENERATIVE DISEASES HAVE REVEALED THAT IT REVERSES MEMORY LOSS, REDUCE ANXIETY, DEPRESSION AND STRESS, THE BIOLOGICAL INDICATORS OF DISEASE. HOWEVER, MOST STUDIES HAVE SEVERAL LIMITATIONS AND THEREFORE FURTHER RESEARCH INTO YOGA IS NEEDED TO VALIDATE THESE FINDINGS. 2019 9 2608 19 YOGA FOR PSYCHIATRIC DISORDERS: FROM FAD TO EVIDENCE-BASED INTERVENTION? THERE IS GROWING EVIDENCE FOR YOGA'S NEUROBIOLOGICAL EFFECTS IN PEOPLE WITH PSYCHIATRIC DISORDERS. POSTULATED MECHANISMS OF ACTION INCLUDE: (A) MODULATION OF THE HYPOTHALAMIC-PITUITARY-ADRENAL (HPA) AXIS; (B) ENHANCEMENT OF GABAERGIC NEUROTRANSMISSION; (C) AUTONOMIC MODULATION; AND (D) NEUROENDOCRINOLOGICAL EFFECTS. YOGA AS A THERAPEUTIC INTERVENTION IN PSYCHIATRIC DISORDERS APPEARS PROMISING AND MERITS FURTHER ATTENTION IN CLINICAL PRACTICE AND RESEARCH. 2020 10 1934 23 ROLE OF YOGA IN STRESS MANAGEMENT. THE STATE OF THE MIND AND THAT OF THE BODY ARE INTIMATELY RELATED. IF THE MIND IS RELAXED, THE MUSCLES IN THE BODY WILL ALSO BE RELAXED. STRESS PRODUCES A STATE OF PHYSICAL AND MENTAL TENSION. YOGA, DEVELOPED THOUSANDS OF YEARS AGO, IS RECOGNIZED AS A FORM OF MIND-BODY MEDICINE. IN YOGA, PHYSICAL POSTURES AND BREATHING EXERCISES IMPROVE MUSCLE STRENGTH, FLEXIBILITY, BLOOD CIRCULATION AND OXYGEN UPTAKE AS WELL AS HORMONE FUNCTION. IN ADDITION, THE RELAXATION INDUCED BY MEDITATION HELPS TO STABILIZE THE AUTONOMIC NERVOUS SYSTEM WITH A TENDENCY TOWARDS PARASYMPATHETIC DOMINANCE. PHYSIOLOGICAL BENEFITS WHICH FOLLOW, HELP YOGA PRACTITIONERS BECOME MORE RESILIENT TO STRESSFUL CONDITIONS AND REDUCE A VARIETY OF IMPORTANT RISK FACTORS FOR VARIOUS DISEASES, ESPECIALLY CARDIO-RESPIRATORY DISEASES. 2004 11 2790 28 YOGA THERAPY FOR ANXIETY: A CASE REPORT. YOGA THERAPY IS A MIND-BODY INTERVENTION THAT CAN BE AN IMPORTANT SOLUTION IN THE TREATMENT OF ANXIETY. YOGA THERAPY ALLEVIATES THE HYPERAROUSAL OF THE SYMPATHETIC NERVOUS SYSTEM (SNS) AND THE HYPERVIGILANCE OF THE HYPOTHALAMIC-PITUITARY-ADRENAL (HPA) AXIS THAT OCCURS IN ANXIETY. YOGA THERAPY ACTIVATES THE PARASYMPATHETIC BRANCH OF THE NERVOUS SYSTEM, REPLACING SNS OVERDRIVE, OR THE FLIGHT-OR-FIGHT RESPONSE, WITH THE RELAXATION RESPONSE AND BALANCING THE NERVOUS SYSTEM. YOGA THERAPY INCREASES POSITIVE COPING SKILLS AND BUILDS SELF-ESTEEM WITHOUT HARMFUL SIDE EFFECTS. THE RESULTS OF THIS CASE STUDY HAVE DEMONSTRATED THE CLINICAL EFFICACY OF YOGA THERAPY IN THE TREATMENT OF ANXIETY AND PANIC DISORDER (PD) IN AN ADOLESCENT FEMALE. TREATMENT CONSISTED OF 4 WKS OF INDIVIDUAL SESSIONS (60-MIN SESSION/WK) AND 6 WKS OF GROUP SESSIONS (90-MIN SESSION/WK) WITH DAILY HOME PRACTICE. THE RESULTS OF THE CASE STUDY ARE SIGNIFICANT BECAUSE GROWING NUMBERS OF YOUTH IN THE UNITED STATES ARE PRESENTING WITH ANXIETY AND SEEKING NONPHARMACOLOGICAL OPTIONS. 2013 12 1587 24 MEDICAL YOGA THERAPY. MEDICAL YOGA IS DEFINED AS THE USE OF YOGA PRACTICES FOR THE PREVENTION AND TREATMENT OF MEDICAL CONDITIONS. BEYOND THE PHYSICAL ELEMENTS OF YOGA, WHICH ARE IMPORTANT AND EFFECTIVE FOR STRENGTHENING THE BODY, MEDICAL YOGA ALSO INCORPORATES APPROPRIATE BREATHING TECHNIQUES, MINDFULNESS, AND MEDITATION IN ORDER TO ACHIEVE THE MAXIMUM BENEFITS. MULTIPLE STUDIES HAVE SHOWN THAT YOGA CAN POSITIVELY IMPACT THE BODY IN MANY WAYS, INCLUDING HELPING TO REGULATE BLOOD GLUCOSE LEVELS, IMPROVE MUSCULOSKELETAL AILMENTS AND KEEPING THE CARDIOVASCULAR SYSTEM IN TUNE. IT ALSO HAS BEEN SHOWN TO HAVE IMPORTANT PSYCHOLOGICAL BENEFITS, AS THE PRACTICE OF YOGA CAN HELP TO INCREASE MENTAL ENERGY AND POSITIVE FEELINGS, AND DECREASE NEGATIVE FEELINGS OF AGGRESSIVENESS, DEPRESSION AND ANXIETY. 2017 13 1951 17 SCIENCE OF THE MIND: ANCIENT YOGA TEXTS AND MODERN STUDIES. THE PRACTICE OF YOGA IS GAINING IN POPULARITY WITH A WIDE RANGE OF PRACTICES. RECENT RESEARCH AND DESCRIPTIONS FROM THE ANCIENT TEXTS ARE OFTEN CONCURRENT WITH REGARD TO THE EFFECTS OF THE PRACTICE, TAKING INTO ACCOUNT EXPECTED DIFFERENCES BETWEEN MODERN SCIENTIFIC TERMS AND THOSE USED IN THE ORIGINAL TEXTS. VOLUNTARILY REGULATED YOGA BREATHING PRACTICES FORM A BRIDGE BETWEEN PHYSICAL AND MENTAL CHANGES. THE VOLUNTARILY REGULATED YOGA BREATHING HAS DISTINCT EFFECTS ON METABOLISM, THE AUTONOMIC NERVOUS SYSTEM, HIGHER BRAIN FUNCTIONS, AND MENTAL STATE. THE EFFECTS OF MEDITATION ON THE NERVOUS SYSTEM AND MENTAL STATE ARE EVEN CLEARER. 2013 14 2196 32 THE EFFICACY AND SAFETY OF YOGA IN MANAGING HYPERTENSION. HYPERTENSION IS A MAJOR PUBLIC HEALTH PROBLEM AND ONE OF THE MOST IMPORTANT CAUSES OF PREMATURE MORBIDITY AND MORTALITY. YOGA IS A TRADITIONAL INDIAN PRACTICE THAT HAS BEEN ADAPTED FOR USE IN COMPLEMENTARY AND ALTERNATIVE MEDICINE AND MAINLY INCLUDES PHYSICAL POSTURES, BREATHING TECHNIQUES, AND MEDITATION. THE IMPACT OF YOGA AS A COMPLEMENTARY INTERVENTION FOR HYPERTENSION HAS BEEN INVESTIGATED IN A NUMBER OF RANDOMIZED CONTROLLED TRIALS; WITH AN OVERALL EFFECT OF ABOUT 10 MMHG REDUCTION IN SYSTOLIC AND ABOUT 8 MMHG REDUCTION IN DIASTOLIC BLOOD PRESSURE. YOGA SEEMS TO BE EFFECTIVE ONLY FOR HYPERTENSION BUT NOT FOR PREHYPERTENSION; AND ONLY AS AN ADJUNCT TO ANTIHYPERTENSIVE PHARMACOLOGICAL TREATMENT BUT NOT AS AN ALTERNATIVE THERAPY. BREATHING AND MEDITATION RATHER THAN PHYSICAL ACTIVITY SEEM TO BE THE ACTIVE PART OF YOGA INTERVENTIONS FOR HYPERTENSIVE PATIENTS. THESE PRACTICES CAN INCREASE PARASYMPATHIC ACTIVITY AND DECREASE SYMPATHETIC ACTIVITY, ARGUABLY MAINLY BY INCREASING GABA ACTIVITY; THUS COUNTERACTING EXCESS ACTIVITY OF THE SYMPATHETIC NERVOUS SYSTEM WHICH HAS BEEN ASSOCIATED WITH HYPERTENSION. ALTHOUGH YOGA HAS BEEN ASSOCIATED WITH SERIOUS ADVERSE EVENTS IN SINGLE CASE REPORTS, POPULATION-BASED SURVEYS AS WELL AS CLINICAL TRIALS INDICATE THAT YOGA IS A RELATIVELY SAFE INTERVENTION THAT IS NOT ASSOCIATED WITH MORE ADVERSE EVENTS THAN OTHER FORMS OF PHYSICAL ACTIVITY. YOGA CAN THUS BE CONSIDERED A SAFE AND EFFECTIVE INTERVENTION FOR MANAGING HYPERTENSION. GIVEN THE POSSIBLY BETTER RISK/BENEFIT RATIO, IT MAY BE ADVISABLE TO FOCUS ON YOGIC MEDITATION AND/OR BREATHING TECHNIQUES. 2016 15 2369 37 WHAT ARE THE KNOWN EFFECTS OF YOGA ON THE BRAIN IN RELATION TO MOTOR PERFORMANCES, BODY AWARENESS AND PAIN? A NARRATIVE REVIEW. OBJECTIVE: THE CURRENT BODY OF LITERATURE WAS REVIEWED TO EVALUATE THE EFFECTS OF YOGA ON THE BRAIN IN RELATION TO MOTOR PERFORMANCE, BODY AWARENESS AND PAIN. BACKGROUND: YOGA HAS BEEN INCREASINGLY POPULAR IN THE WESTERN COUNTRIES ESPECIALLY FOR ITS UNIQUE INTEGRATION OF THE MIND AND BODY. YOGA HAS BEEN STUDIED MORE INTENSELY IN THE LAST DECADE. ALTHOUGH IT HAS BEEN SHOWN TO IMPROVE COGNITIVE FUNCTIONS, FEW STUDIES HAVE LOOKED INTO THE EFFECTS OF YOGA ON IMPROVING MOTOR PERFORMANCE, BODY AWARENESS OR PAIN AND THE POSSIBLE UNDERLYING BRAIN MECHANISMS ASSOCIATED WITH THEM. METHODS: A SEARCH OF THE CURRENT LITERATURE WAS MADE USING KEYWORDS SUCH AS: "YOGA BRAIN MOTOR", "YOGA BRAIN PAIN", "EFFECTS YOGA BRAIN" AND "EFFECTS YOGA BRAIN MOTOR PERFORMANCE". THE FINDINGS WERE THEN DISCUSSED IN RELATION TO MOTOR PERFORMANCE, BODY AWARENESS AND PAIN AND THEIR REPORTED MECHANISMS OF ACTION ON THE BRAIN. RESULTS: A TOTAL OF 61 ARTICLES WERE SELECTED, OUT OF WHICH 29 WERE EXCLUDED BECAUSE THEY DID NOT MEET OUR CRITERIA. A TOTAL OF THIRTY-TWO ARTICLES WERE INCLUDED IN THIS REVIEW, WHICH WE FURTHER SUBDIVIDED BY FOCUS: MOTOR PERFORMANCE (N=10), BODY AWARENESS (N=14) AND PAIN (N=8). DISCUSSION: OUR REVIEW SHOWS THAT YOGA HAS A POSITIVE EFFECT ON LEARNING RATE, SPEED AND ACCURACY OF A MOTOR TASK BY INCREASING ATTENTION AND DECREASING STRESS THROUGH A BETTER CONTROL OF SENSORIMOTOR RHYTHMS. YOGA ALSO SEEMS TO IMPROVE SENSORY AWARENESS AND INTEROCEPTION, REGULATE AUTONOMIC INPUT, INCREASE PARASYMPATHETIC ACTIVITY AND PROMOTE SELF-REGULATION. YOGA WAS ALSO SHOWN TO REDUCE THE THREAT SIGNAL, INCREASE PAIN TOLERANCE, DECREASE PAIN UNPLEASANTNESS AND DECREASE THE ANXIETY AND DISTRESS ASSOCIATED WITH PAIN. THOSE CHANGES ARE ASSOCIATED WITH THE RECRUITMENT OF SPECIFIC BRAIN AREAS SUCH AS THE INSULA, THE AMYGDALA AND THE HIPPOCAMPUS. CONCLUSION: BASED ON THE STUDIES REVIEWED IN THIS REPORT, WE FOUND THAT THE PRACTICE OF YOGA SEEMS TO FACILITATE MOTOR LEARNING, TO INCREASE BODY AWARENESS AND TO DECREASE PAIN. THESE ARE ASSOCIATED WITH A WIDE VARIETY OF CHANGES IN TERMS OF BRAIN ACTIVITY AND STRUCTURE. FURTHER STUDIES ARE NECESSARY TO REVEAL ITS PRECISE MECHANISM OF ACTION ON THE BRAIN AND TO VALIDATE ITS WIDER APPLICATION IN CLINICAL SETTINGS. 2019 16 2668 33 YOGA IN MAJOR DEPRESSIVE DISORDER: MOLECULAR MECHANISMS AND CLINICAL UTILITY. MAJOR DEPRESSIVE DISORDER (MDD) IS A MIND-BODY DISORDER. CELLULAR AGING HAS BEEN IMPLICATED IN THE PATHOGENESIS OF MDD WITH THE ALTERED MIND-BODY COMMUNICATION MARKERS LIKE STRESS RESPONSE, IMMUNE RESPONSE, NUTRITION SENSING, AND A RANGE OF OTHER REGULATORY FEEDBACK SYSTEMS. IN THIS AGE OF SUPER SPECIALIZATIONS, ONE SPECIFIC TARGET AND INTERVENTIONS (PREFERABLY A DRUG) ON IT ARE BEING RIGOROUSLY SOUGHT BY THE HEALTH CARE COMMUNITY AND INDUSTRY, BUT HAVE FAILED IN IT IN THE LAST FIFTY YEARS IN SPITE OF ADVANCES IN TECHNOLOGY. SINCE, DEPRESSION IS A COMPLEX DISORDER ASSOCIATED WITH INCREASED INCIDENCE OF OTHER COMPLEX DISORDERS, IT MUST BE TREATED BY AN INTEGRATED HOLISTIC APPROACH THAT CAN ADDRESS THE COMPLEXITY OF MDD. INTERVENTIONS TARGETING ACCELERATED BIOLOGICAL AGING TO INCREASE CELLULAR HEALTH IN WHOLE BODY HAVE POTENTIAL TO MANAGE COMPLEX CONDITIONS LIKE MDD AND ITS OVERLAPPING SYMPTOMS AND COMORBIDITIES. YOGA HAS THE POTENTIAL TO BE THE NEXUS BETWEEN, CLINICAL MANAGEMENT OF MDD AND OTHER LIFESTYLE DISEASES. 2021 17 2409 30 YOGA AND HEART RATE VARIABILITY: A COMPREHENSIVE REVIEW OF THE LITERATURE. HEART RATE VARIABILITY (HRV) HAS BEEN USED AS A PROXY FOR HEALTH AND FITNESS AND INDICATOR OF AUTONOMIC REGULATION AND THEREFORE, APPEARS WELL PLACED TO ASSESS THE CHANGES OCCURRING WITH MIND.-BODY PRACTICES THAT FACILITATE AUTONOMIC BALANCE. WHILE MANY STUDIES SUGGEST THAT YOGA INFLUENCES HRV, SUCH STUDIES HAVE NOT BEEN SYSTEMATICALLY REVIEWED. WE AIMED TO SYSTEMATICALLY REVIEW ALL PUBLISHED PAPERS THAT REPORT ON YOGA PRACTICES AND HRV. A COMPREHENSIVE SEARCH OF MULTIPLE DATABASES WAS CONDUCTED AND ALL STUDIES THAT REPORTED A MEASURE OF HRV ASSOCIATED WITH ANY YOGA PRACTICE WERE INCLUDED. STUDIES WERE CATEGORIZED BY THE STUDY DESIGN AND TYPE OF YOGA PRACTICE. A TOTAL OF 59 STUDIES WERE REVIEWED INVOLVING A TOTAL OF 2358 PARTICIPANTS. MOST STUDIES WERE PERFORMED IN INDIA ON RELATIVELY SMALL NUMBERS OF HEALTHY MALE YOGA PRACTITIONERS DURING A SINGLE LABORATORY SESSION. OF THE REVIEWED STUDIES, 15 WERE RANDOMIZED CONTROLLED TRIALS WITH 6 HAVING A JADAD SCORE OF 3. THE REVIEWED STUDIES SUGGEST THAT YOGA CAN AFFECT CARDIAC AUTONOMIC REGULATION WITH INCREASED HRV AND VAGAL DOMINANCE DURING YOGA PRACTICES. REGULAR YOGA PRACTITIONERS WERE ALSO FOUND TO HAVE INCREASED VAGAL TONE AT REST COMPARED TO NON-YOGA PRACTITIONERS. IT IS PREMATURE TO DRAW ANY FIRM CONCLUSIONS ABOUT YOGA AND HRV AS MOST STUDIES WERE OF POOR QUALITY, WITH SMALL SAMPLE SIZES AND INSUFFICIENT REPORTING OF STUDY DESIGN AND STATISTICAL METHODS. RIGOROUS STUDIES WITH DETAILED REPORTING OF YOGA PRACTICES AND ANY CORRESPONDING CHANGES IN RESPIRATION ARE REQUIRED TO DETERMINE THE EFFECT OF YOGA ON HRV. 2016 18 2429 25 YOGA AND PHYSICAL EXERCISE - A REVIEW AND COMPARISON. YOGA IS A MULTIFACETED SPIRITUAL TOOL WITH ENHANCED HEALTH AND WELL-BEING AS ONE OF ITS POSITIVE EFFECTS. THE COMPONENTS OF YOGA WHICH ARE VERY COMMONLY APPLIED FOR HEALTH BENEFITS ARE ASANAS (PHYSICAL POSTURES), PRANAYAMA (REGULATED BREATHING) AND MEDITATION. IN THE CONTEXT OF ASANAS, YOGA RESEMBLES MORE OF A PHYSICAL EXERCISE, WHICH MAY LEAD TO THE PERCEPTION THAT YOGA IS ANOTHER KIND OF PHYSICAL EXERCISE. THIS ARTICLE AIMS AT EXPLORING THE COMMONALITIES AND DIFFERENCES BETWEEN YOGA AND PHYSICAL EXERCISE IN TERMS OF CONCEPTS, POSSIBLE MECHANISMS AND EFFECTIVENESS FOR HEALTH BENEFITS. A NARRATIVE REVIEW IS UNDERTAKEN BASED ON TRADITIONAL AND CONTEMPORARY LITERATURE FOR YOGA, ALONG WITH SCIENTIFIC ARTICLES AVAILABLE ON YOGA AND EXERCISE INCLUDING HEAD-TO-HEAD COMPARATIVE TRIALS WITH HEALTHY VOLUNTEERS AND PATIENTS WITH VARIOUS DISEASE CONDITIONS. PHYSICAL EXERCISES AND THE PHYSICAL COMPONENTS OF YOGA PRACTICES HAVE SEVERAL SIMILARITIES, BUT ALSO IMPORTANT DIFFERENCES. EVIDENCE SUGGESTS THAT YOGA INTERVENTIONS APPEAR TO BE EQUAL AND/OR SUPERIOR TO EXERCISE IN MOST OUTCOME MEASURES. EMPHASIS ON BREATH REGULATION, MINDFULNESS DURING PRACTICE, AND IMPORTANCE GIVEN TO MAINTENANCE OF POSTURES ARE SOME OF THE ELEMENTS WHICH DIFFERENTIATE YOGA PRACTICES FROM PHYSICAL EXERCISES. 2016 19 1640 32 MOLECULAR SIGNATURE OF THE IMMUNE RESPONSE TO YOGA THERAPY IN STRESS-RELATED CHRONIC DISEASE CONDITIONS: AN INSIGHT. THE WORLD HEALTH ORGANIZATION DEFINES HEALTH AS COMPLETE WELL-BEING IN TERMS OF PHYSICAL, MENTAL AND SOCIAL, AND NOT MERELY THE ABSENCE OF DISEASE. TO ATTAIN THIS, INDIVIDUAL SHOULD ADAPT AND SELF-MANGE THE SOCIAL, PHYSICAL AND EMOTIONAL CHALLENGES OF LIFE. EXPOSURE TO CHRONIC STRESS DUE TO URBANIZATION, WORK STRESS, NUCLEAR FAMILY, POLLUTION, UNHEALTHY FOOD HABITS, LIFESTYLE, ACCIDENTAL DEATH IN THE FAMILY, AND NATURAL CALAMITIES ARE THE TRIGGERING FACTORS, LEADING TO HORMONAL IMBALANCE AND INFLAMMATION IN THE TISSUE. THE RELATIONSHIP BETWEEN STRESS AND ILLNESS IS COMPLEX; ALL CHRONIC ILLNESSES SUCH AS CARDIOVASCULAR DISEASE AND ASTHMA HAVE THEIR ROOT IN CHRONIC STRESS ATTRIBUTED BY INFLAMMATION. IN RECENT TIMES, YOGA THERAPY HAS EMERGED AS AN IMPORTANT COMPLEMENTARY ALTERNATIVE MEDICINE FOR MANY HUMAN DISEASES. YOGA THERAPY HAS A POSITIVE IMPACT ON MIND AND BODY; IT ACTS BY INCORPORATING APPROPRIATE BREATHING TECHNIQUES AND MINDFULNESS TO ATTAIN CONSCIOUS DIRECTION OF OUR AWARENESS OF THE PRESENT MOMENT BY MEDITATION, WHICH HELPS ACHIEVE HARMONY BETWEEN THE BODY AND MIND. STUDIES HAVE ALSO DEMONSTRATED THE IMPORTANT REGULATORY EFFECTS OF YOGA THERAPY ON BRAIN STRUCTURE AND FUNCTIONS. DESPITE THESE ADVANCES, THE CELLULAR AND MOLECULAR MECHANISMS BY WHICH YOGA THERAPY RENDERS ITS BENEFICIAL EFFECTS ARE INADEQUATELY KNOWN. A GROWING BODY OF EVIDENCE SUGGESTS THAT YOGA THERAPY HAS IMMUNOMODULATORY EFFECTS. HOWEVER, THE PRECISE MECHANISTIC BASIS HAS NOT BEEN ADDRESSED EMPIRICALLY. IN THIS REVIEW, WE HAVE ATTEMPTED TO HIGHLIGHT THE EFFECT OF YOGA THERAPY ON IMMUNE SYSTEM FUNCTIONING WITH AN AIM TO IDENTIFY IMPORTANT IMMUNOLOGICAL SIGNATURES THAT INDEX THE EFFECT OF YOGA THERAPY. TOWARD THIS, WE HAVE SUMMARIZED THE AVAILABLE SCIENTIFIC EVIDENCE SHOWING POSITIVE IMPACTS OF YOGA THERAPY. FINALLY, WE HAVE EMPHASIZED THE EFFICACY OF YOGA IN IMPROVING PHYSICAL AND MENTAL WELL-BEING. YOGA HAS BEEN A PART OF INDIAN CULTURE AND TRADITION FOR LONG; NOW, THE TIME HAS COME TO SCIENTIFICALLY VALIDATE THIS AND IMPLEMENT THIS AS AN ALTERNATIVE TREATMENT METHOD FOR STRESS-RELATED CHRONIC DISEASE. 2020 20 2436 25 YOGA AND PSYCHIATRIC DISORDERS: A REVIEW OF BIOMARKER EVIDENCE. TRADITIONALLY, YOGA HAS BEEN USED AS A MEANS FOR SPIRITUAL GROWTH BUT OVER THE PAST TWO DECADES OR SO ITS THERAPEUTIC BENEFITS IN PSYCHIATRIC DISORDERS HAVE BEEN SCIENTIFICALLY EXPLORED. YOGA HAS BEEN SHOWN TO BE USEFUL AS A MONO-THERAPY IN MILD TO MODERATE DEPRESSION AND AS AN ADJUVANT IN SEVERAL PSYCHIATRIC DISORDERS INCLUDING SCHIZOPHRENIA, ANXIETY DISORDERS, SUBSTANCE USE DISORDERS AND MILD COGNITIVE IMPAIRMENT. FURTHERMORE, SYSTEMATIC ATTEMPTS HAVE BEEN MADE TO UNDERSTAND THE BIOLOGICAL CORRELATES OF YOGA IN THESE PSYCHIATRIC DISORDERS. GIVEN THAT NO PSYCHIATRIC DISORDER HAS STRONG AND ESTABLISHED BIOMARKERS, IT IS INTERESTING THAT PRELIMINARY RESEARCH HAS DEMONSTRATED SIGNIFICANT CHANGES IN CERTAIN IMPORTANT BIOMARKERS FOLLOWING REGULAR YOGA PRACTICE. IN THIS BRIEF REVIEW, WE PROVIDE AN UPDATE ON THE EFFECTS OF YOGA ON BIOCHEMICAL, NEURO-PHYSIOLOGICAL AND NEURO-IMAGING RELATED BIO-MARKERS IN PSYCHIATRIC DISORDERS. ALTHOUGH FINDINGS AND TRENDS ARE PROMISING, MUCH MORE RESEARCH IS WARRANTED TO ESTABLISH A DEFINITE BIOLOGICAL BASIS FOR YOGA IN PSYCHIATRY. 2021