Physiological (adjective)

1. Relating to or concerned with the functioning of living organisms and their parts.
2. Relating to the processes and functions of the body and its organs.
3. Relating to the natural and normal functioning of the body.
4. Of or concerned with the processes and functions that sustain life in living organisms.
5. Of or related to the science of physiology, which is the study of how living things function.

Origin:

Late 18th century: from french physiologique, or via latin from greek physiologikos, from physiologia "study of nature", from phusis "nature" + logia "study".

Examples:

1. The study of the human body is crucial for understanding physiological processes and the effects of diseases.
2. The physiological effects of stress can range from headaches and high blood pressure to heart disease and depression.
3. The drug was tested for its physiological effects on the liver, heart and kidneys.
4. The physiological changes that occur during exercise can be monitored using various methods, such as heart rate and oxygen consumption.
5. The physiological differences between men and women affect their responses to certain drugs and treatments.