IPA: /ˌfɪziəˈlɒdʒɪkəl/
KK: /ˌfɪziəˈlɑgɪkəl/
Relating to the normal functions and processes of living organisms and their parts.
The physiological effects of exercise include increased heart rate and improved circulation.
Physiological → It is formed from "physio-" (from Greek "phusis", meaning nature) and "-logical" (from Greek "logia", meaning study or science). The word "physiological" refers to the study or science of natural processes in living organisms.
Think of 'nature' ('physio-') being studied ('-logical') — that's why physiological relates to the natural processes of living things.