ATP	Adenosine triphosphate
BDNF	Brain-derived neurotrophic factor
CBSST	Cognitive Behavioral Social Skills Training
FAST	Functional Adaptation Skills Training
HOPES	Helping Older People Experience Success
HPA	Hypothalamic–pituitary–adrenal axis
MRI	Magnetic Resonance Imaging
NAC	N-acetylcysteine
OXPHOS	Oxidative phosphorylation system
PET	Positron emission tomography
ROS	Reactive oxygen species