Cycle of sleep disruption and stress
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4788px × 3499px
Photo credit: ©
Dima / Alamy / Afripics
License:
Royalty Free
Model Released:
Yes
Keywords:
2976,
concept,
cortisol,
diagram,
face,
high,
male,
man,
night,
pen,
person,
physiology,
problems,
sleep,
stress