here has been a link between the cyclical variation of cluster headache and chronic paroxysmal hemicrania, a certain type of one-sided headache, to the REM sleep cycle.

Research has suggested that certain headache disorders are associated with different patterns of sleep disturbance, which may influence the response of treatment.

Cluster headaches are one-sided severe headache attacks that are usually accompanied by nasal stuffiness and eye tearing, and frequently occur during the nighttime. There has been an association of these attacks to REM sleep and research has noted an increase of sleep apnea in patients who experience cluster headaches.

In patients with cluster headaches who have sleep apnea, it is suggested that they may be experiencing an episodic decrease in oxygen during the night that can precipitate the headache attacks. In patients who have chronic cluster headaches, it is noted that two-thirds of the attacks usually occur during the last two hours of sleep.

In fact, in one report, patients who have cluster headaches and sleep apnea were also noted to have experienced bed-wetting and night terrors during childhood.

here is nothing positive about pain, but people can take a positive approach to living with it. Know the strategies and commit to giving them a chance.

Cognitive-behavioral training.
This is a kind of psychotherapy can do.Cognitive-behavioral training can help avoid negative thoughts that make pain worse.

Exercise.
Believe it or not, exercise will make joints feel better, not worse. Even if in pain, there are some exercises can do. Talk to doctor or a physical therapist. Build an exercise schedule into treatment plan and stick to it. Over time, the results can be dramatic.

Eat a healthy balanced diet.
Drink alcohol only in moderation. Don't smoke! Cigarettes, alcohol or unhealthy foods can seem comforting when you are in pain, but in the long-term they won't help.

The postdrome phase is the period after the pain subsides. During this phase, some sufferers feel drained or irritable, while others are refreshed or euphoric. Some residual symptoms may persist after the pain is gone.

There are several unusual forms of migraine. In familial hemiplegic migraine, the aura involves paralysis on one side of the body; the affected person usually has a family member with the same symptoms.

Some people have a migraine aura (such as changes in vision) without headache; this type of migraine is more common in midlife or later. in ophthalmoplegic migraine, the aura includes partial paralysis of the eyes. The most severe form of migraine involves a stroke that occurs in association with the migraine.