is "stimulant" a countable noun? Why is an article used here?
Native speaker’s answer
Rebecca
That's right! It is a countable noun. I think when spoken about generally, the plural term "stimulants" is used, but here they're talking about one kind of stimulant being carried through, so that's why "a" is used. Ex: They have a dish called lobster lasagne at the restaurant, it's so good. Ex: Caffeine is a great stimulant to have in small amounts!