Which measurement is a good indicator of physiological age?

A_ is the number of times you plan on performing a series of repetitions a. sort b. rep c. set d. joy

Ijust want the meaning to life (no wrong or right answers i just want your true opinion)

During the past few weeks or months, have you noticed any exercises that have become too easy for you? do you think you need to increase the intensity in any of the three exercise areas in your workouts? evaluate your exercise progress in the three exercise areas (cardiovascular, resistance, and flexibility) and list what modifications, if any, you may need to make in your exercise routine.