BZs	Blue Zones
LBZs	Longevity Blue Zones
SCFAs	Short-chain fatty acids (e.g., butyrate, acetate, propionate)
QoL	Quality of Life
HRV	Heart-Rate Variability
HPA	Hypothalamic–Pituitary–Adrenal axis
PGC-1α	Peroxisome proliferator-activated receptor gamma coactivator 1-alpha
NAD+	Nicotinamide Adenine Dinucleotide (oxidized form)
AMPK	AMP-activated protein kinase
HDAC	Histone Deacetylase
CNS	Central nervous system
ANS	Autonomic nervous system
ENS	Enteric nervous system
EEG	Electroencephalogram
ECG	Electrocardiogram
PFC	Prefrontal cortex
ATP	Adenosine Triphosphate
ROS	Reactive oxygen species
HF-HRV	High-frequency heart-rate variability
OFC	Orbitofrontal Cortex
BDNF	Brain-derived neurotrophic factor
SNS	Sympathetic nervous system
PNS	parasympathetic nervous system
TNTs	tunneling nanotubes
DNA	Deoxyribonucleic Acid
BBB	Blood–brain barrier
HA	Histone acetylation
SNPs	Single-nucleotide polymorphisms
FOXO3	Forkhead Box 03
SIRT1	Sirtuin 1
mtDNA	Mitochondrial DNA
LTL	Leukocyte telomere length
CRP	C-reactive protein
TERT	Telomerase Reverse Transcriptase
CEMI	Conscious electromagnetic information field
EMFs	Electromagnetic fields
TAFA4	Tumor necrosis factor (TNT) Alpha-induced Protein 8-Like2
VNS	Vagus nerve stimulation
MBSR	Mindfulness-based stress reduction
LPS	lipopolysaccharides
mTOR	Mechanistic target of Rapamycin