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Photoperiodism Effects

Meaning

Photoperiodism Effects refer to the physiological and behavioral adaptations that occur in an organism in response to seasonal changes in the relative duration of light and dark, known as the photoperiod. In humans, these effects subtly modulate the seasonal variation of mood, immune function, and the pulsatile secretion of certain reproductive hormones. Understanding these predictable, light-driven biological shifts is essential for managing conditions like Seasonal Affective Disorder and for optimizing clinical interventions throughout the year.