Unpacking a medical meme: How does ibuprofen know where the pain is?

Paging Dr. Internet, we need a diagnosis. In this series, Mashable examines the online world's influence on our health and prescribes new ways forward.

--------------------

When you twist open a bottle of Advil in search of relief from a pounding headache, nagging back pain, or ruthless cramps, do you ever stop...