In Which Brain Structure are Circadian Rhythms Coordinated

Question

In which brain structure are circadian rhythms coordinated?
A) pituitary gland
B) hypothalamus
C) cerebrum
D) thalamus

Accepted Answer

Circadian rhythms are coordinated in the hypothalamus, specifically within a region called the suprachiasmatic nucleus (SCN). This area of the brain responds to light and dark signals, helping to regulate sleep patterns and other daily physiological cycles.