Is alcohol mind-altering? If so, yes to that, and not the other things. He doesn't know what half of them are!
His sexual partners are zero! Also, what the heck is a condom!
He exercises, and eats food! He is good at this exercising and eating thing. ...please do not ask him about the details of his food, he is making wild guesses about servings and what counts as a vegetable around here.
He is good at sleeping! He is very practiced at it.
He is also not depressed at the moment! He is not going to mention that there's a chance once his situation catches up with him that this may change!
He sure hopes he does not have, nor has a family history of, those diseases!