What words are nouns certain blasting tested handle unknown men health stress before were could these their they?

Here are the nouns from your list, along with a brief explanation of why they are nouns:

* words: This is a noun because it refers to a thing (in this case, a collection of spoken or written sounds with meaning).

* blasting: While this is a verb in its base form, in this context, it's likely acting as a noun referring to the act of blasting something.

* handle: This is a noun referring to a part of an object used for grasping.

* men: This is a plural noun referring to multiple male humans.

* health: This is a noun referring to a state of physical and mental well-being.

* stress: This is a noun referring to a state of mental or emotional strain.

* these: While often a determiner, in this context, it could be acting as a noun referring to a group of unspecified items.

* their: This is a possessive pronoun, which can act as a noun, especially when referring to a belonging of a group.

Let me know if you have any other words you'd like to categorize!