Meaning ❉ Discrimination Physiology refers to the nuanced study of how textured hair, particularly coils and kinks, physiologically responds to specific environmental stimuli, product formulations, and mechanical stressors. This understanding helps discern the unique biophysical reactions within Black and mixed-race hair strands and scalp ecosystems. Such insights offer a framework for systematizing hair care by observing how different hair types or conditions ‘selectively react’ to care protocols, leading to varied outcomes in health and growth. Applying this knowledge allows for precise adjustments in routines, moving beyond general advice to individualized care. This physiological discernment aids in tailoring product choices and technique applications, ensuring alignment with the hair’s inherent needs. Ultimately, it means recognizing the subtle signals your hair provides, guiding informed decisions for its optimal well-being.