Answer | Crossword Clue |
---|---|
CYCLIC | Like biorhythms |
biorhythmic | relating to biorhythms |
biorhythmically | BIORHYTHMIC, relating to biorhythms |
melatonin | hormone secreted by the pineal gland in inverse proportion to the amount of light received by the retina, important in the regulation of biorhythms: in amphibians, it causes a lightening of the skin |