Answer: biologicalclock

AnswerCrossword Clue
BIOLOGICALCLOCK

Natural timekeeper, of a sort

BIOLOGICALCLOCK

Jet lag monitor, in a way

BIOLOGICALCLOCK

Controller of body rhythms

BIOLOGICALCLOCK
Concern for some women
BIOLOGICALCLOCK
Concern in family planning
BIOLOGICALCLOCKController of life cycles