Question

What is an increase in substance abuse?

Answer 1

It's is basically when you "abuse" a substance, such as drugs. So you're increasing it, meaning using it more.. Your question was unclear but I hope this helped.

Answer 2

not clear on your question here.. but substance abuse is when you abuse a substance and usually an illegal one such as drugs or alcohol, and when you increase that, you're just using it more? I want to help you but the question is unclear to me!