Which measurement is a good indicator of physiological age?
age measured in years
ability to perform physical activities
scores on a health and wellness survey
number of exercise opportunities in a week

The answer is "scores on a health and wellness survey".

Our physiological age, likewise called biological or functional age, is the one that demonstrates the genuine natural condition of a man.  

The physiological age of a man can be higher or lower than their ordered age, since maturing isn't just restricted to time, yet is in truth a mind boggling process with various causes. The development of maturing can be adjusted by inner and outer elements: hereditary qualities, diet, condition, emotional well-being… Knowing your physiological age enables you to more readily comprehend the existence designs that affect maturing, which thus enables us to act as needs be to restrict its belongings.