is it true apples can help you stay awake?

Yes, there is something in apples that helps you stay awake. In college they recommend you eat an apple or bring apple juice to class because it helps you stay awake and focus. I thought people were just pulling my leg. Then I tried it. It really works.

It would make sense that a poisoned apple would cause sleeping death. They say an apple a day keeps the doctor away. So a poisoned apple makes sense that it would do the opposite.