function
abnormal
apnea
body
brain
chart
check
checklist
cognitive
diagnose
diagram
difficult
disease
effects
explain
guide
hallucination
health
heart disease
heart rate
icon
illness
illustration
impairment
info
information
insomnia
irregular
lifestyle
lymph nodes
medical
memory
mental
patient
people
physiological
poor immune
poster
problems
rest
risk
signs
sleep deprivation
sleep loss
slow
stress
symptoms
system
vector