A tasty drink made with chocolate and caffeine can improve your thinking - here's how to make it

The next few months are challenging for most of us. High school and university students have mid-term and final exams, papers to submit, and thesis studies to document. At work, many of us have year-long projects to complete.

Success in all of these depends upon quick thinking, and a recent study shows there's a tasty drink that could help clarify our thinking.