Researchers at the University of California Irvine have been injecting children as you as 8 with Botox to rid them of their migraines. How does it work?

Nearly 40 million people suffer with migraine headaches, which can cause symptoms that include nausea, sensitivity to light, dizziness, vomiting and more. But could there be a different explanation for the migraine-like symptoms?

Doctors’ staff member Robert has been suffering from debilitating cluster headaches for the past eight years. Listen as neurologist Dr. David Kudrow explains what cluster headaches are, and how they differ from migraines. Then, watch and see the...