HR	Heart rate
IoT	Internet of Things
EEG	Electroencephalogram (Brain Activity)
EOG	Electrooculogram (The Cornea-Positive Potential)
CAN	Controller Area Network
ECG	Electrocardiogram (Electrical Activity of Heart)
PCB	Printed circuit board
ML	Machine learning
VO2	Maximal oxygen consumption
IR	Identifiable infrared
RAM	Random-Access Memory
PDA	Personal Digital Assistant
LED	Light-Emitting Diode
CAN	Control Area Network
PD	Photodetector
RPM	Revolutions Per Minute
RR	Respiration rate
CO2	Carbon dioxide
SVM	Support Vector Machine
BGL	Blood glucose level
GF	Gauge factor
DC	Direct current
SHM	Structural health monitoring
PPG	Photoplethysmographic
GSR	Galvanic Skin Response