How to Say "physiological" in Spanish
The Spanish word for “physiological” is “fisiológico” — B2 level.

Examples
El sudor es un proceso fisiológico natural para enfriar el cuerpo.
Sweating is a natural physiological process to cool the body.
Las necesidades fisiológicas básicas incluyen comer y dormir.
Basic physiological needs include eating and sleeping.
El médico analizó el efecto fisiológico del medicamento.
The doctor analyzed the physical effect of the medicine on the body.
Matching the Ending
This word must match the gender of the object it describes. Use 'fisiológico' for masculine words (like 'proceso') and 'fisiológica' for feminine words (like 'necesidad').
Placement After the Noun
In Spanish, descriptive words like this one almost always come after the thing they are describing, such as 'ritmo fisiológico' (physiological rhythm).
Using it for 'Physical Objects'
Mistake: “Using it to describe physical items like a book or a table.”
Correction: Only use this for things related to the biology of living beings. For objects, use 'físico'.
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