Poor sleep hygiene has pushed me into a cycle, and forcing myself to sleep on a regular schedule (with melatonin, if needed) has made my cycles lighter, sometimes it even ends them.
As one reasearcher noted: "Migraine, CH and HH seems to be related to sleep stages suggesting that they may in fact be a chronobiological disorder." And we know that shift work messes with the sleep cycles.
Speaking of sleep, an alarmingly high percent of clusterheads have sleep apnea - given the high health risks from apnea, I think more of us should be getting sleep studies.
Quote:Investigation into sleep disturbance of patients suffering from cluster headache. Cephalalgia. 2005 Jul;25(7):488-92. Nobre ME, Leal AJ, Filho PM.
The new discoveries relating to cluster headache (CH) encouraged the study of the relationship of the hypothalamus to respiratory physiology and its comorbidity with sleep apnoea. The question is whether the apnoeas are more frequent during REM sleep and the desaturations could be involved as triggers of the cluster attacks. Furthermore, could the connection with the hypothalamus, already proved, be responsible for an alteration in the structure of REM sleep and a chemoreceptor dysfunction. We set out to analyse when polysomnography investigation is necessary in patients with CH. We studied 37 patients suffering from episodic CH, 31 (83.8%) men and six (16.2%) women. For the control group, we selected 35 individuals, 31 (88.6%) men and four (11.4%) women. There was a greater percentage of obstructive sleep apnoea (OSA) in patients with CH (58.3%) compared with the control group (14.3%) and with the general population (2-4%). In cases of pain during sleep, the majority is deflagrated during the REM phase, following a desaturation episode. A stratified analysis of the apnoea/hypnoea index relating to body mass index (BMI) and age showed that patients with CH have 8.4 times more chance of exhibiting OSA than normal individuals (P < 0001). This risk increases to 24.38 in patients with a BMI > 25 kg/m(2) and increases to 13.5 in patients > 40 years old. Surprisingly, the risk decreases sharply in patients with a BMI < 25 kg/m(2) and who are < 40 years old. Due to the fact that polysomnography is a complex, costly and sometimes difficult examination, we suggest, in concordance with the results, that it should be carried out routinely in patients with CH that exhibit a BMI of > 25 kg/m(2) and/or in patients who are > 40 years of age.
PMID: 15955035 [PubMed - indexed for MEDLINE]