Which of the following statements about physiological age and chronological age is TRUE?

Chronological age is the number of years a person has lived. Physiological age reflects how well the body functions and can be affected by factors such as health, lifestyle, and genetics, so it may be lower than, equal to, or higher than chronological age. Therefore, the true statement is that physiological age can be lower than, the same as, or higher than chronological age.

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