Brooke Shields opens up about having a seizure: what to know about tonic-clonic seizures

Brook Shields revealed that she experienced "a full-blown grand mal seizure."

Seizures aren't always obvious—and we often don't know what causes them.

Focal onset seizures don't involve convulsions—so look out for these symptoms instead.

Desmoid tumors are noncancerous and do not metastasize, but they can invade nearby tissues and structures.

Kids' migraines are more common than you think—but one type of therapy is offering hope.

Get the facts and learn ways to cope with this life-changing disease.