SEPTEMBER 14 2019 LISTENER 15
GE
TT
Y (^) I
MA
GE
S
Powerful organs located
at the base of the skull
regulate the brain’s blood-
oxygen status, acting as
a kind of smoke alarm.
SEPTEMBER 14 2019 LISTENER 15
GE
TT
Y (^) I
MA
GE
S
Powerful organs located
at the base of the skull
regulate the brain’s blood-
oxygen status, acting as
a kind of smoke alarm.