Answer:
Principles
Explanation:
"Specificity and progression" are two principles related to maintaining physical health. Therefore we can say that the word "principles" is the most suitable to replace the word "thing".
Also, "Specificity and progression" are neither exercises nor muscles. Nor are they acronyms, since an acronym is the word formed by joining letters or initial syllables of a group of words, pronounced as one word.
Fear, guilt, sadness, shame, frustrated
I’ll give you more Than three
ANSWER
Strength training makes you stronger and fitter. ...
Strength training protects bone health and muscle mass. ...
Strength training helps keep the weight off for good. ...
Strength training helps you develop better body mechanics. ...
Strength training can help with chronic disease management.
