ACT	Acceptance and Commitment Therapy
APA	American Psychological Association
BPS	Biopsychosocial
BPSD	Behavioral and Psychological Symptoms of Dementia
CBT	Cognitive Behavioral Therapy
CRF	Cancer-Related Fatigue
CRP	C-reactive protein
DMN	Default Mode Network
DSM	Diagnostic and Statistical Manual of Mental Disorders
EEG	Electroencephalography
fMRI	Functional Magnetic Resonance Imaging
HPA	Hypothalamic-Pituitary-Adrenal (axis)
HRV	Heart Rate Variability
ICD	International Classification of Diseases
IL-6	Interleukin 6
ITT	Intent-to-Treat
MBT	Mindfulness-Based Therapy
MBCT	Mindfulness-Based Cognitive Therapy
MBI	Mindfulness-Based Interventions
MBSR	Mindfulness-Based Stress Reduction
MCI	Mild Cognitive Impairment
MRI	Magnetic Resonance Imaging
MS	Multiple Sclerosis
OFC	Orbitofrontal Cortex
PFC	Prefrontal Cortex
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PTSD	Post-Traumatic Stress Disorder
PwD	People with Dementia
QoL	Quality of Life
RCT	Randomized Controlled Trial
SRMA	Systematic Review and Meta-Analysis
UTs	Uncontrolled Trials
SR	Systematic Review
PilS	Pilot Studies
NRCTs	Non-Randomized Controlled Trials
QED	Quasi-Experimental Design
RPGST	Randomized Parallel-Group Superiority Trial
PPIDs	Pre-Post Intervention Designs
ES	Empirical Studies
QS	Qualitative Studies
CMA	Controlled Mediation Analyses
SC	Self-Compassion
SoC	State of Comparison
SMD	Standardized Mean Difference
SWB	Subjective Well-Being