[thereare5lights]

How is it reasonable TO infer that? If the claim is that sedentary jobs lower testosterone, it does not follow that non-sedentary jobs raise testosterone. If A => B, the statement NOT A => NOT B is not necessarily true. That's just rudimentary logic.

[DoreenMichele]

My question is "What's the opposite of a sedentary job? Is it or is it not a physical job, AKA a blue collar job?"

I do not see where OP said sedentary jobs lower testosterone. I do not see any statement clarifying the exact nature of the presumed relationship between testosterone levels and job type.

Perhaps I missed that?