Cluster headache is one of the most severe and disabling primary headache disorders, though it often goes undiagnosed for years.

Is it headache o’clock? Migraines and cluster headaches are closely linked to the body’s internal clock, a new study found. The report, published in Neurology on Wednesday, suggested that both types ...

So: Let’s go ahead and take a couple minutes to walk through the details of cluster headaches, both for those who are now curious what the term means and those who experience this condition and are ...

Cluster headaches aren’t that common, but they are extremely painful. And they often occur during the fall season. A cluster headache is a rare headache disorder that differs from a typical migraine ...

They arrive without warning and can leave people pacing, rocking, or clutching their heads in agony. Doctors call them cluster headaches, considered the most painful type of headache. According to the ...

Having short, painful headaches for many days or even weeks in a row may signal that you're more likely to have other medical woes, researchers say. These "cluster headaches" are extremely painful and ...

Dr. Carrie Jose, in her latest Health and Wellness column, provides five ways to tell if your neck is the hidden cause of ...

Q: I get crushing headaches every fall, which I've always assumed are part of having allergies. But a specialist at our local medical center diagnosed me with cluster headaches. She says oxygen is a ...

During certain times of day and parts of the year, these severe attacks are more likely to happen, a new study suggests. People with migraine and cluster headaches are often caught off guard by ...

People with cluster headaches may be more than three times more likely to have other medical conditions such as heart disease, mental disorders and other neurologic diseases, according to a new study.