AEA	anandamide
CSD	cortical spreading depression
CGRP	calcitonin gene-related peptide
CGIs	CpG islands
DNMTs	DNA methyl transferases
EM	episodic migraine
eCB	endogenous ligands
FAAH	fatty acid amide hydrolase
GR	glucocorticoid receptor
HAT	histone acetyltransferase
HDACs	histone deacetylases
IDHs	isocitrate dehydrogenase inhibitors
JNKs	c-Jun N-terminal kinases
MOH	medication overuse headache
MTHFR	methylenetetrahydrofolate reductase
MZ	monozygotic
NF-κB	nuclear factor kappa-light-chain-enhancer of activated B cells
PTSD	post-traumatic stress disorder
RAMP1	receptor activity-modifying protein 1
TET	ten-eleven translocation
THC	Δ9-tetrahydrocannabinol
TG	trigeminal ganglion