What is the main cause of cluster headaches?
The exact cause of cluster headaches is unknown, but cluster headache patterns suggest that abnormalities in the body’s biological clock (hypothalamus) play a role. Unlike migraine and tension headache, cluster headache generally isn’t associated with triggers, such as foods, hormonal changes or stress.
How long do cluster headaches last?
The headaches associated with cluster occur in groups. While the headaches themselves may be brief (as short as 15 minutes), the headaches can recur up to eight times in 24 hours. Headaches may last as long as 3 hours. Cluster cycles may last for only a single day, or may linger for many weeks.
Are cluster headaches dangerous?
How Dangerous Are Cluster Headaches? Despite the intense pain of cluster headaches, they are not life threatening. They are harmful to a person’s quality of life, however, and sometimes induce depression and/or anxiety disorders, especially if the headaches are uncontrolled by medication or other therapies.
What happens during a cluster headache?
Cluster headache consists of severe headaches on one side of the head. It is associated with symptoms that occur on the same side of the head that the pain is taking place on, and which can include red or teary eye, runny or stuffy nostril, and flushing or sweating of the face.