1 1266 85 FLUID INTELLIGENCE AND BRAIN FUNCTIONAL ORGANIZATION IN AGING YOGA AND MEDITATION PRACTITIONERS. NUMEROUS STUDIES HAVE DOCUMENTED THE NORMAL AGE-RELATED DECLINE OF NEURAL STRUCTURE, FUNCTION, AND COGNITIVE PERFORMANCE. PRELIMINARY EVIDENCE SUGGESTS THAT MEDITATION MAY REDUCE DECLINE IN SPECIFIC COGNITIVE DOMAINS AND IN BRAIN STRUCTURE. HERE WE EXTENDED THIS RESEARCH BY INVESTIGATING THE RELATION BETWEEN AGE AND FLUID INTELLIGENCE AND RESTING STATE BRAIN FUNCTIONAL NETWORK ARCHITECTURE USING GRAPH THEORY, IN MIDDLE-AGED YOGA AND MEDITATION PRACTITIONERS, AND MATCHED CONTROLS. FLUID INTELLIGENCE DECLINED SLOWER IN YOGA PRACTITIONERS AND MEDITATORS COMBINED THAN IN CONTROLS. RESTING STATE FUNCTIONAL NETWORKS OF YOGA PRACTITIONERS AND MEDITATORS COMBINED WERE MORE INTEGRATED AND MORE RESILIENT TO DAMAGE THAN THOSE OF CONTROLS. FURTHERMORE, MINDFULNESS WAS POSITIVELY CORRELATED WITH FLUID INTELLIGENCE, RESILIENCE, AND GLOBAL NETWORK EFFICIENCY. THESE FINDINGS REVEAL THE POSSIBILITY TO INCREASE RESILIENCE AND TO SLOW THE DECLINE OF FLUID INTELLIGENCE AND BRAIN FUNCTIONAL ARCHITECTURE AND SUGGEST THAT MINDFULNESS PLAYS A MECHANISTIC ROLE IN THIS PRESERVATION. 2014 2 1972 29 SHORT-TERM SAHAJA YOGA MEDITATION TRAINING MODULATES BRAIN STRUCTURE AND SPONTANEOUS ACTIVITY IN THE EXECUTIVE CONTROL NETWORK. INTRODUCTION: WHILE CROSS-SECTIONAL STUDIES HAVE SHOWN NEURAL CHANGES IN LONG-TERM MEDITATORS, THEY MIGHT BE CONFOUNDED BY SELF-SELECTION AND POTENTIAL BASELINE DIFFERENCES BETWEEN MEDITATORS AND NON MEDITATORS. PROSPECTIVE LONGITUDINAL STUDIES OF THE EFFECTS OF MEDITATION IN NAIVE SUBJECTS ARE MORE CONCLUSIVE WITH RESPECT TO CAUSAL INFERENCES, BUT RELATED EVIDENCE IS SO FAR LIMITED. METHODS: HERE, WE ASSESSED THE EFFECTS OF A 4-WEEK SAHAJA YOGA MEDITATION TRAINING ON GRAY MATTER DENSITY AND SPONTANEOUS RESTING-STATE BRAIN ACTIVITY IN A GROUP OF 12 MEDITATION-NAIVE HEALTHY ADULTS. RESULTS: COMPARED WITH 30 CONTROL SUBJECTS, THE PARTICIPANTS TO MEDITATION TRAINING SHOWED INCREASED GRAY MATTER DENSITY AND CHANGES IN THE COHERENCE OF INTRINSIC BRAIN ACTIVITY IN TWO ADJACENT REGIONS OF THE RIGHT INFERIOR FRONTAL GYRUS ENCOMPASSING THE ANTERIOR COMPONENT OF THE EXECUTIVE CONTROL NETWORK. BOTH THESE MEASURES CORRELATED WITH SELF-REPORTED WELL-BEING SCORES IN THE MEDITATION GROUP. CONCLUSIONS: THE SIGNIFICANT IMPACT OF A BRIEF MEDITATION TRAINING ON BRAIN REGIONS ASSOCIATED WITH ATTENTION, SELF-CONTROL, AND SELF-AWARENESS MAY REFLECT THE ENGAGEMENT OF COGNITIVE CONTROL SKILLS IN SEARCHING FOR A STATE OF MENTAL SILENCE, A DISTINCTIVE FEATURE OF SAHAJA YOGA MEDITATION. THE MANIFOLD IMPLICATIONS OF THESE FINDINGS INVOLVE BOTH MANAGERIAL AND REHABILITATIVE SETTINGS CONCERNED WITH WELL-BEING AND EMOTIONAL STATE IN NORMAL AND PATHOLOGICAL CONDITIONS. 2019 3 1051 24 EFFECTS OF YOGA ON BRAIN WAVES AND STRUCTURAL ACTIVATION: A REVIEW. PREVIOUS RESEARCH HAS SHOWN THE VAST MENTAL AND PHYSICAL HEALTH BENEFITS ASSOCIATED WITH YOGA. YOGA PRACTICE CAN BE DIVIDED INTO SUBCATEGORIES THAT INCLUDE POSTURE-HOLDING EXERCISE (ASANA), BREATHING (PRANAYAMA, KRIYA), AND MEDITATION (SAHAJ) PRACTICE. STUDIES MEASURING MENTAL HEALTH OUTCOMES HAVE SHOWN DECREASES IN ANXIETY, AND INCREASES IN COGNITIVE PERFORMANCE AFTER YOGA INTERVENTIONS. SIMILAR STUDIES HAVE ALSO SHOWN COGNITIVE ADVANTAGES AMONGST YOGA PRACTITIONERS VERSUS NON-PRACTITIONERS. THE MENTAL HEALTH AND COGNITIVE BENEFITS OF YOGA ARE EVIDENT, BUT THE PHYSIOLOGICAL AND STRUCTURAL CHANGES IN THE BRAIN THAT LEAD TO THIS REMAIN A TOPIC THAT LACKS CONSENSUS. THEREFORE, THE PURPOSE OF THIS STUDY WAS TO EXAMINE AND REVIEW EXISTING LITERATURE ON THE EFFECTS OF YOGA ON BRAIN WAVES AND STRUCTURAL CHANGES AND ACTIVATION. AFTER A NARROWED SEARCH THROUGH A SET OF SPECIFIC INCLUSION AND EXCLUSION CRITERIA, 15 ARTICLES WERE USED IN THIS REVIEW. IT WAS CONCLUDED THAT BREATHING, MEDITATION, AND POSTURE-BASED YOGA INCREASED OVERALL BRAIN WAVE ACTIVITY. INCREASES IN GRAYGRAY MATTER ALONG WITH INCREASES IN AMYGDALA AND FRONTAL CORTEX ACTIVATION WERE EVIDENT AFTER A YOGA INTERVENTION. YOGA PRACTICE MAY BE AN EFFECTIVE ADJUNCTIVE TREATMENT FOR A CLINICAL AND HEALTHY AGING POPULATION. FURTHER RESEARCH CAN EXAMINE THE EFFECTS OF SPECIFIC BRANCHES OF YOGA ON A DESIGNATED CLINICAL POPULATION. 2015 4 2369 33 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 5 1590 15 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 6 1098 23 EFFECTS OF YOGA RESPIRATORY PRACTICE (BHASTRIKA PRANAYAMA) ON ANXIETY, AFFECT, AND BRAIN FUNCTIONAL CONNECTIVITY AND ACTIVITY: A RANDOMIZED CONTROLLED TRIAL. PRANAYAMA REFERS TO A SET OF YOGA BREATHING EXERCISES. RECENT EVIDENCE SUGGESTS THAT THE PRACTICE OF PRANAYAMA HAS POSITIVE EFFECTS ON MEASURES OF CLINICAL STRESS AND ANXIETY. THIS STUDY EXPLORED THE IMPACT OF A BHASTRIKA PRANAYAMA TRAINING PROGRAM ON EMOTION PROCESSING, ANXIETY, AND AFFECT. WE USED A RANDOMIZED CONTROLLED TRIAL DESIGN WITH THIRTY HEALTHY YOUNG ADULTS ASSESSED AT BASELINE AND AFTER 4 WEEKS OF PRANAYAMA PRACTICES. TWO FUNCTIONAL MAGNETIC RESONANCE IMAGING (MRI) PROTOCOLS WERE USED BOTH AT BASELINE AND POST-INTERVENTION: AN EMOTION TASK AS WELL AS A RESTING-STATE ACQUISITION. OUR RESULTS SUGGEST THAT PRANAYAMA SIGNIFICANTLY DECREASED STATES OF ANXIETY AND NEGATIVE AFFECT. THE PRACTICE OF PRANAYAMA ALSO MODULATED THE ACTIVITY OF BRAIN REGIONS INVOLVED IN EMOTIONAL PROCESSING, PARTICULARLY THE AMYGDALA, ANTERIOR CINGULATE, ANTERIOR INSULA, AND PREFRONTAL CORTEX. RESTING-STATE FUNCTIONAL MRI (FMRI) SHOWED SIGNIFICANTLY REDUCED FUNCTIONAL CONNECTIVITY INVOLVING THE ANTERIOR INSULA AND LATERAL PORTIONS OF THE PREFRONTAL CORTEX. CORRELATION ANALYSIS REVEALED THAT CHANGES IN CONNECTIVITY BETWEEN THE VENTROLATERAL PREFRONTAL CORTEX AND THE RIGHT ANTERIOR INSULA WERE ASSOCIATED WITH CHANGES IN ANXIETY. ALTHOUGH IT SHOULD BE NOTED THAT THESE ANALYSES WERE PRELIMINARY AND EXPLORATORY, IT PROVIDES THE FIRST EVIDENCE THAT 4 WEEKS OF B. PRANAYAMA SIGNIFICANTLY REDUCE THE LEVELS OF ANXIETY AND NEGATIVE AFFECT, AND THAT THESE CHANGES ARE ASSOCIATED WITH THE MODULATION OF ACTIVITY AND CONNECTIVITY IN BRAIN AREAS INVOLVED IN EMOTION PROCESSING, ATTENTION, AND AWARENESS. THE STUDY WAS REGISTERED AT HTTPS://WWW.ENSAIOSCLINICOS.GOV.BR/RG/RBR-2GV5C2/(RBR-2GV5C2). 2020 7 1424 18 IMPROVEMENT IN PHYSIOLOGICAL AND PSYCHOLOGICAL PARAMETERS AFTER 6 MONTHS OF YOGA PRACTICE. YOGA IS BELIEVED TO HAVE BENEFICIAL EFFECTS ON COGNITION, ATTENUATION OF EMOTIONAL INTENSITY AND STRESS REDUCTION. PREVIOUS STUDIES WERE MAINLY PERFORMED ON EASTERN EXPERIENCED PRACTITIONERS OR UNHEALTHY SUBJECTS UNDERGOING CONCOMITANT CONVENTIONAL THERAPIES. FURTHER INVESTIGATION IS NEEDED ON THE EFFECTS OF YOGA PER SE, AS WELL AS ITS POSSIBLE PREVENTIVE BENEFITS ON HEALTHY SUBJECTS. WE INVESTIGATED THE EFFECTS OF YOGA ON MEMORY AND PSYCHOPHYSIOLOGICAL PARAMETERS RELATED TO STRESS, COMPARING YOGA PRACTICE AND CONVENTIONAL PHYSICAL EXERCISES IN HEALTHY MEN (PREVIOUSLY YOGA-NAIVE). MEMORY TESTS, SALIVARY CORTISOL LEVELS AND STRESS, ANXIETY, AND DEPRESSION INVENTORIES WERE ASSESSED BEFORE AND AFTER 6 MONTHS OF PRACTICE. YOGA PRACTITIONERS SHOWED IMPROVEMENT OF THE MEMORY PERFORMANCE, AS WELL AS IMPROVEMENTS IN PSYCHOPHYSIOLOGICAL PARAMETERS. THE PRESENT RESULTS SUGGEST THAT REGULAR YOGA PRACTICE CAN IMPROVE ASPECTS OF COGNITION AND QUALITY OF LIFE FOR HEALTHY INDIVIDUALS. AN INDIRECT INFLUENCE OF EMOTIONAL STATE ON COGNITIVE IMPROVEMENT PROMOTED BY YOGA PRACTICE CAN BE PROPOSED. 2012 8 1934 18 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 9 361 20 ASSOCIATIONS BETWEEN ATTENTION, AFFECT AND CARDIAC ACTIVITY IN A SINGLE YOGA SESSION FOR FEMALE CANCER SURVIVORS: AN ENACTIVE NEUROPHENOMENOLOGY-BASED APPROACH. YOGA PRACTICE IS REPORTED TO LEAD TO IMPROVEMENTS IN QUALITY OF LIFE, PSYCHOLOGICAL FUNCTIONING, AND SYMPTOM INDICES IN CANCER SURVIVORS. IMPORTANTLY, MEDITATIVE STATES EXPERIENCED WITHIN YOGA PRACTICE ARE CORRELATED TO NEUROPHYSIOLOGICAL SYSTEMS THAT MODERATE BOTH FOCUS OF ATTENTION AND AFFECTIVE VALENCE. THE CURRENT STUDY USED A MIXED METHODS APPROACH BASED IN NEUROPHENOMENOLOGY TO INVESTIGATE ASSOCIATIONS BETWEEN ATTENTION, AFFECT, AND CARDIAC ACTIVITY DURING A SINGLE YOGA SESSION FOR FEMALE CANCER SURVIVORS. YOGA PRACTICE WAS ASSOCIATED WITH A LINEAR INCREASE IN ASSOCIATIVE ATTENTION AND POSITIVE AFFECTIVE VALENCE, WHILE SHIFTS IN CARDIAC ACTIVITY WERE RELATED TO THE INTENSITY OF EACH YOGA SEQUENCE. CHANGES IN ATTENTION AND AFFECT WERE PREDICTED BY CONCURRENTLY ASSESSED CARDIAC ACTIVITY. AWARENESS OF BREATHING, PHYSICAL MOVEMENT, AND INCREASED RELAXATION WERE REPORTED BY PARTICIPANTS AS POTENTIAL MECHANISMS FOR YOGA'S SALUTARY EFFECTS. WHILE YOGA PRACTICE SHARES COMMONALITIES WITH EXERCISE AND RELAXATION TRAINING, YOGA MAY SERVE PRIMARILY AS A PROMISING MEDITATIVE ATTENTION-AFFECT REGULATION TRAINING METHODOLOGY. 2014 10 2429 19 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 11 1587 13 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 12 1983 26 SLEEP, COGNITION, AND YOGA. STRESS IS ONE OF THE MAJOR PROBLEMS GLOBALLY, ASSOCIATED WITH POOR SLEEP QUALITY AND COGNITIVE DYSFUNCTION. MODERN SOCIETY IS PLAGUED BY SLEEP DISTURBANCES, EITHER DUE TO PROFESSIONAL DEMANDS OR LIFESTYLE OR BOTH THE ASPECTS, OFTEN LEADING TO REDUCED ALERTNESS AND COMPROMISED MENTAL FUNCTION, BESIDES THE WELL DOCUMENTED ILL EFFECTS OF DISTURBED SLEEP ON PHYSIOLOGICAL FUNCTIONS. THIS PERTINENT ISSUE NEEDS TO BE ADDRESSED. YOGA IS AN ANCIENT INDIAN SCIENCE, PHILOSOPHY AND WAY OF LIFE. RECENTLY, YOGA PRACTICE HAS BECOME INCREASINGLY POPULAR WORLDWIDE. YOGA PRACTICE IS AN ADJUNCT EFFECTIVE FOR STRESS, SLEEP AND ASSOCIATED DISORDERS. THERE ARE LIMITED WELL CONTROLLED PUBLISHED STUDIES CONDUCTED IN THIS AREA. WE REVIEWED THE AVAILABLE LITERATURE INCLUDING THE EFFECT OF MODERN LIFESTYLE IN CHILDREN, ADOLESCENTS, ADULTS AND GERIATRIC POPULATION. THE ROLE OF YOGA AND MEDITATION IN OPTIMIZING SLEEP ARCHITECTURE AND COGNITIVE FUNCTIONS LEADING TO OPTIMAL BRAIN FUNCTIONING IN NORMAL AND DISEASED STATE IS DISCUSSED. WE INCLUDED ARTICLES PUBLISHED IN ENGLISH WITH NO FIXED TIME DURATION FOR LITERATURE SEARCH. LITERATURE WAS SEARCHED MAINLY BY USING PUBMED AND SCIENCE DIRECT SEARCH ENGINES AND CRITICALLY EXAMINED. STUDIES HAVE REVEALED POSITIVE EFFECTS OF YOGA ON SLEEP AND COGNITIVE SKILLS AMONG HEALTHY ADULTS AS WELL AS PATIENTS OF SOME NEUROLOGICAL DISEASES. FURTHER, ON EVALUATING THE PUBLISHED STUDIES, IT IS CONCLUDED THAT SLEEP AND COGNITIVE FUNCTIONS ARE OPTIMIZED BY YOGA PRACTICE, WHICH BRINGS ABOUT CHANGES IN AUTONOMIC FUNCTION, STRUCTURAL CHANGES, CHANGES IN METABOLISM, NEUROCHEMISTRY AND IMPROVED FUNCTIONAL BRAIN NETWORK CONNECTIVITY IN KEY REGIONS OF THE BRAIN. 2021 13 2736 24 YOGA POSES INCREASE SUBJECTIVE ENERGY AND STATE SELF-ESTEEM IN COMPARISON TO 'POWER POSES'. RESEARCH ON BENEFICIAL CONSEQUENCES OF YOGA FOCUSES ON THE EFFECTS OF YOGIC BREATHING AND MEDITATION. LESS IS KNOWN ABOUT THE PSYCHOLOGICAL EFFECTS OF PERFORMING YOGA POSTURES. THE PRESENT STUDY INVESTIGATED THE EFFECTS OF YOGA POSES ON SUBJECTIVE SENSE OF ENERGY AND SELF-ESTEEM. THE EFFECTS OF YOGA POSTURES WERE COMPARED TO THE EFFECTS OF 'POWER POSES,' WHICH ARGUABLY INCREASE THE SENSE OF POWER AND SELF-CONFIDENCE DUE TO THEIR ASSOCIATION WITH INTERPERSONAL DOMINANCE (CARNEY ET AL., 2010). THE STUDY TESTED THE NOVEL PREDICTION THAT YOGA POSES, WHICH ARE NOT ASSOCIATED WITH INTERPERSONAL DOMINANCE BUT INCREASE BODILY ENERGY, WOULD INCREASE THE SUBJECTIVE FEELING OF ENERGY AND THEREFORE INCREASE SELF-ESTEEM COMPARED TO 'HIGH POWER' AND 'LOW POWER' POSES. A TWO FACTORIAL, BETWEEN PARTICIPANTS DESIGN WAS EMPLOYED. PARTICIPANTS PERFORMED EITHER TWO STANDING YOGA POSES WITH OPEN FRONT OF THE BODY (N = 19), TWO STANDING YOGA POSES WITH COVERED FRONT OF THE BODY (N = 22), TWO EXPANSIVE, HIGH POWER POSES (N = 21), OR TWO CONSTRICTIVE, LOW POWER POSES (N = 20) FOR 1-MIN EACH. THE RESULTS SHOWED THAT YOGA POSES IN COMPARISON TO 'POWER POSES' INCREASED SELF-ESTEEM. THIS EFFECT WAS MEDIATED BY AN INCREASED SUBJECTIVE SENSE OF ENERGY AND WAS OBSERVED WHEN BASELINE TRAIT SELF-ESTEEM WAS CONTROLLED FOR. THESE RESULTS SUGGEST THAT THE EFFECTS OF PERFORMING OPEN, EXPANSIVE BODY POSTURES MAY BE DRIVEN BY PROCESSES OTHER THAN THE POSES' ASSOCIATION WITH INTERPERSONAL POWER AND DOMINANCE. THIS STUDY DEMONSTRATES THAT POSITIVE EFFECTS OF YOGA PRACTICE CAN OCCUR AFTER PERFORMING YOGA POSES FOR ONLY 2 MIN. 2017 14 427 17 CAN YOGA BOOST ACCESS TO THE BODILY AND EMOTIONAL SELF? CHANGES IN HEART RATE VARIABILITY AND IN AFFECTIVE EVALUATION BEFORE, DURING AND AFTER A SINGLE SESSION OF YOGA EXERCISE WITH AND WITHOUT INSTRUCTIONS OF CONTROLLED BREATHING AND MINDFUL BODY AWARENESS IN YOUNG HEALTHY WOMEN. EXERCISE IS INDISPENSABLE FOR A HEALTHY LIFESTYLE. YOGA EXERCISE CAN HAVE POSITIVE EFFECTS ON WELL-BEING AND ON CARDIAC AUTONOMIC ACTIVITY MAKING IT AN IDEAL INTERVENTION FOR IMPROVING MIND-BODY INTERACTIONS AND RESILIENCE TO PHYSICAL AND MENTAL STRESSORS. EMOTIONS TRIGGER ESPECIALLY STRONG BODILY AND AFFECTIVE-COGNITIVE RESPONSES BECAUSE OF THEIR SOCIAL RELEVANCE FOR THE SELF AND THEIR BIOLOGICAL RELEVANCE OF MOBILIZING THE ORGANISM FOR ACTION. THIS STUDY INVESTIGATES WHETHER CHANGES IN EMOTION PROCESSING RELATED TO SELF-OTHER REFERENTIAL PROCESSING AND CHANGES IN CARDIAC AUTONOMIC ACTIVITY, REFLECTED BY HEART RATE VARIABILITY (HRV), OCCUR IMMEDIATELY AFTER ALREADY A SINGLE SESSION OF YOGA EXERCISE WHEN YOGA POSTURES ARE PRACTICED WITH OR WITHOUT BREATHING- AND MINDFUL BODY AWARENESS INSTRUCTIONS. WOMEN, ALL UNIVERSITY STUDENTS (N = 34, FINAL SAMPLE: N = 30, N = 25 NAIVE TO YOGA PRACTICE) WERE RANDOMLY ASSIGNED TO TWO EXPERIMENTAL GROUPS WHO PERFORMED THE SAME YOGA EXERCISES WITH OR WITHOUT CONTROLLED BREATHING AND MINDFULNESS INSTRUCTIONS. EMOTIONAL, SELF-OTHER REFERENTIAL PROCESSING, AWARENESS OF BODILY SIGNALS AND HRV INDICATORS WERE INVESTIGATED BEFORE AND AFTER THE EXERCISE USING STANDARDIZED EXPERIMENTAL TASKS, STANDARDIZED QUESTIONNAIRES, AND MOBILE RECORDING DEVICES. EXERCISING FOR 30 MINUTES CHANGED CARDIAC ACTIVITY SIGNIFICANTLY. HRV MEASURES SHOWED ADAPTABILITY OF CARDIAC ACTIVITY DURING THE EXERCISE AS WELL AS DURING THE AFFECTIVE TASK POST- TO PRE-EXERCISE. EXERCISING WITH BREATHING INSTRUCTIONS AND MINDFUL BODY AWARENESS HAD NO SUPERIOR EFFECTS ON CARDIAC, PARTICULARLY PARASYMPATHETIC ACTIVITY, COMPARED TO PRACTICING THE SAME MOVEMENTS WITHOUT SUCH EXPLICIT INSTRUCTIONS. SELF-REFERENTIAL PROCESSING DID NOT CHANGE; HOWEVER, PARTICIPANTS WERE FASTER AND MORE ACCURATE IN THEIR AFFECTIVE JUDGMENTS OF EMOTIONAL STIMULI [REGARDLESS OF THEIR REFERENCE (SELF/OTHER)], AND SHOWED BETTER AWARENESS OF BODILY SIGNALS AFTER COMPARED TO BEFORE THE EXERCISE SESSION. THE RESULTS SUPPORT IMMEDIATE, ADAPTIVE EFFECTS OF YOGA EXERCISE ON CARDIAC AND AFFECTIVE-COGNITIVE PROCESSING IN AN ALL-FEMALE HEALTHY SAMPLE. THEREFORE, YOGA EXERCISE COULD BE RECOMMENDED AS A PHYSICAL ACTIVITY FOR BOOSTING CARDIAC AND EMOTIONAL RESILIENCE IN THIS TARGET GROUP. 2021 15 203 19 A REVIEW OF THE LITERATURE EXAMINING THE PHYSIOLOGICAL PROCESSES UNDERLYING THE THERAPEUTIC BENEFITS OF HATHA YOGA. AN ESTIMATED 7.4 MILLION AMERICANS CURRENTLY PRACTICE HATHA YOGA. MOREOVER, 64% OF INDIVIDUALS WHO PRACTICE YOGA REPORT DOING SO FOR WELL-BEING. PREVIOUS RESEARCH HAS REPORTED AN ASSOCIATION BETWEEN YOGA PRACTICE AND SUBJECTIVE WELL-BEING; HOWEVER, FEW STUDIES HAVE INVESTIGATED THE PHYSIOLOGICAL MECHANISMS INVOLVED. THE FOLLOWING REVIEW PROVIDES AN HISTORICAL OVERVIEW OF THE FIELD OF INTEGRATIVE MEDICINE, WHICH CONCEPTUALIZES YOGA AS A MIND-BODY PRACTICE. A BRIEF DESCRIPTION OF HATHA YOGA IS PROVIDED THAT DESCRIBES THE PURPORTED RELATIONSHIP BETWEEN YOGA AND THE RELAXATION RESPONSE. A REVIEW OF THE EMERGING LITERATURE RELATED TO NITRIC OXIDE AND OXIDATIVE STRESS AS POTENTIAL MECHANISMS IN THE RELATIONSHIP BETWEEN YOGA AND WELL-BEING ALSO IS INCLUDED. THE ARTICLE CONCLUDES WITH A BRIEF DISCUSSION OF THE STATE OF THE RESEARCH AND PROVIDES SUGGESTIONS FOR FUTURE STUDIES. 2008 16 1289 37 GREATER WIDESPREAD FUNCTIONAL CONNECTIVITY OF THE CAUDATE IN OLDER ADULTS WHO PRACTICE KRIPALU YOGA AND VIPASSANA MEDITATION THAN IN CONTROLS. THERE HAS BEEN A GROWING INTEREST IN UNDERSTANDING HOW CONTEMPLATIVE PRACTICES AFFECT BRAIN FUNCTIONAL ORGANIZATION. HOWEVER, MOST STUDIES HAVE RESTRICTED THEIR EXPLORATION TO PREDEFINED NETWORKS. FURTHERMORE, SCIENTIFIC COMPARISONS OF DIFFERENT CONTEMPLATIVE TRADITIONS ARE LARGELY LACKING. HERE WE EXPLORED DIFFERENCES IN WHOLE BRAIN RESTING STATE FUNCTIONAL CONNECTIVITY BETWEEN EXPERIENCED YOGA PRACTITIONERS, EXPERIENCED MEDITATORS, AND MATCHED CONTROLS. ANALYSES WERE REPEATED IN AN INDEPENDENT SAMPLE OF EXPERIENCED MEDITATORS AND MATCHED CONTROLS. ANALYSES UTILIZING NETWORK-BASED STATISTICS (ZALESKY ET AL., 2010) REVEALED DIFFERENCE COMPONENTS FOR YOGA PRACTITIONERS > CONTROLS AND MEDITATORS > CONTROLS IN WHICH THE RIGHT CAUDATE WAS A CENTRAL NODE. FOLLOW UP ANALYSES REVEALED THAT YOGA PRACTITIONERS AND MEDITATORS HAD SIGNIFICANTLY GREATER DEGREE CENTRALITY IN THE CAUDATE THAN CONTROLS. THIS GREATER DEGREE CENTRALITY WAS NOT DRIVEN BY SINGLE CONNECTIONS BUT BY GREATER CONNECTIVITY BETWEEN THE CAUDATE AND NUMEROUS BRAIN REGIONS. FINDINGS OF GREATER CAUDATE CONNECTIVITY IN MEDITATORS THAN IN CONTROLS WAS REPLICATED IN AN INDEPENDENT DATASET. THESE FINDINGS SUGGEST THAT YOGA AND MEDITATION PRACTITIONERS HAVE STRONGER FUNCTIONAL CONNECTIVITY WITHIN BASAL GANGLIA CORTICO-THALAMIC FEEDBACK LOOPS THAN NON-PRACTITIONERS. ALTHOUGH WE COULD NOT PROVIDE EVIDENCE FOR ITS MECHANISTIC ROLE, THIS GREATER CONNECTIVITY MIGHT BE RELATED TO THE OFTEN REPORTED EFFECTS OF MEDITATION AND YOGA ON BEHAVIORAL FLEXIBILITY, MENTAL HEALTH, AND WELL-BEING. 2015 17 1338 24 HOW DOES YOGA REDUCE STRESS? EMBODIED COGNITION AND EMOTION HIGHLIGHT THE INFLUENCE OF THE MUSCULOSKELETAL SYSTEM. YOGA IS AN INCREASINGLY POPULAR ACTIVITY, PERHAPS BECAUSE OF ITS ASSOCIATION WITH STRESS REDUCTION AND RELAXATION - AN ASSOCIATION THAT IS GENERALLY SUPPORTED BY EMPIRICAL EVIDENCE. UNDERSTANDING OF THE MEDIATING VARIABLES IS, HOWEVER, LIMITED. GIVEN THAT, THE PURPOSE OF THIS PAPER IS TO PRESENT A THEORETICAL PERSPECTIVE THAT ENCOURAGES SYSTEMATIC RESEARCH REGARDING THE RELATIONSHIP BETWEEN YOGA, STRESS, AND MUSCULOSKELETAL ACTIVITY. THIS EMBODIED PERSPECTIVE PARALLELS POPULAR INTEREST IN THE MIND-BODY CONNECTION AND EMPHASIZES THE INFLUENCE OF BODY POSITION ON THINKING AS WELL AS EMOTION. THOSE INFLUENCES TAKE ON ADDED MEANING IN THE CONTEXT OF THE COGNITIVE APPRAISAL THEORY AND THE BIOPSYCHOSOCIAL MODEL OF CHALLENGE AND THREAT. INVESTIGATIONS OF EMBODIED COGNITION SUGGEST THAT YOGA MAY REDUCE STRESS BY AFFECTING THE WAY INDIVIDUALS APPRAISE STRESSORS. THE COMBINATION OF BODY POSITION AND COMMON COMPONENTS OF YOGA PRACTICE MAY ALSO CONTRIBUTE TO THAT EFFECT, PARTICULARLY WHEN CONSIDERING THOUGHTS ABOUT THE SELF AND FEELINGS OF CONFIDENCE. FINDINGS REGARDING EMBODIED EMOTION MAKE A SIMILAR CONTRIBUTION TO UNDERSTANDING THE IMPLICATIONS OF PREVIOUS RESEARCH FINDINGS AND COMMON YOGA PRACTICES. CONSIDERING YOGA AND STRESS FROM AN EMBODIED PERSPECTIVE ALSO HIGHLIGHTS THE ROLE OF THE MUSCULOSKELETAL SYSTEM IN THE STRESS PROCESS, LEADING TO THE QUESTION OF WHETHER YOGA INFLUENCES STRESS BY DIRECTLY INFLUENCING THE MUSCULOSKELETAL SYSTEM, INDIRECTLY BY INFLUENCING AWARENESS OF THAT SYSTEM, OR THROUGH A COMBINATION OF THE TWO. THOSE QUESTIONS, IN TURN, HIGHLIGHT THE IMPORTANCE OF EXPANDING INVESTIGATIONS OF PSYCHOLOGICAL PROCESSES, BODY POSITION, MUSCULOSKELETAL ACTIVITY DURING YOGA, AND THE INTERACTIONS BETWEEN THOSE VARIABLES. 2019 18 1964 12 SEPARATING THE "LIMBS" OF YOGA: LIMITED EFFECTS ON STRESS AND MOOD. THOUGH MILLIONS OF PEOPLE PRACTICE YOGA TO REDUCE STRESS AND IMPROVE THEIR MOOD, IT IS UNCLEAR WHICH ASPECT OF YOGA IS RESPONSIBLE FOR THESE EFFECTS. TO INVESTIGATE RELEVANT ASPECTS, OR "LIMBS" OF YOGA, PARTICIPANTS WHO WERE NOVICES IN THE PRACTICE OF YOGA ENGAGED IN A SINGLE YOGA MANIPULATION (I.E., POSES, BREATH WORK, MEDITATION, OR LISTENING TO A LECTURE ABOUT YOGA) FOR 20 MIN BEFORE EXPERIENCING A MILD STRESSOR. PARTICIPANTS' HEART RATE, BLOOD PRESSURE, MOOD, AND ANXIETY LEVEL WERE ASSESSED, BOTH IMMEDIATELY AFTER THE YOGA MANIPULATION AND AFTER THE MILD STRESSOR. THE 20-MIN YOGA MANIPULATION DID NOT DIFFERENTIALLY AFFECT ANY OF THE MEASURES, INCLUDING PARTICIPANTS' STRESS RESPONSE AFTER THE MILD STRESSOR. RESULTS ARE DISCUSSED REGARDING THE INDIVIDUAL COMPONENTS OF A YOGA PRACTICE. 2019 19 1951 16 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 20 2516 12 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