Answer:
What you become during a workout?
What occurs four times in every week, twice in every month, only once in a year but never in a day?
Built of metal or wood to divide. It will make us good neighbors, if you stay on your side. What is it?
What is often on the ground getting stepped on by others, but you donโt have to wash it because it never get dirty, in fact you couldnโt wash it even if you tried?
Men in skirts blow into these.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.