A nasal spray is safe and effective at rapidly treating cluster headaches, which are considered to be the most painful kind of headache with few treatment options, according to a study published in the August 28, 2007, issue of Neurology®, the medical journal of the American Academy of Neurology.

A drug increasingly used to prevent cluster headaches can cause heart problems, according to a study published in the August 14, 2007, issue of Neurology®, the medical journal of the American Academy of Neurology.

Middle-aged men and women with a history of migraine and other headaches are more likely to have retinopathy, damage to the retina of the eye which can lead to severe vision problems or blindness, than those without a history of headaches, according to a study from the University of North Carolina at Chapel Hill.

Migraines may be doing more than causing people skull-splitting pain. Scientists have found evidence that the headaches may also be acting like tiny transient strokes, leaving parts of the brain starved for oxygen and altering the brain in significant ways.

Researchers have shown that a drug that was extensively tested against cancer may also qualify as a new drug against African sleeping sickness.