A Study on Shogun Pillow Syndrome
A recent study conducted by researchers at the National Cerebral and Cardiovascular Center in Japan has revealed a potential health risk associated with using high pillows and stacked towels during sleep. The study, published in the journal "World Neurosurgery," found that sleeping on a high pillow can increase the risk of stroke, a condition known as "shogun pillow syndrome."
The researchers investigated the cases of 53 patients diagnosed with spontaneous vertebral artery dissection (sVAD), a stroke caused by a rupture of a blood vessel in the back of the neck. They compared these patients with a control group of 53 individuals who had experienced strokes or cerebral hemorrhages from other causes.
The study found a significant correlation between the use of high pillows and the development of sVAD. Patients who used pillows 12 cm or higher were 34% more likely to develop sVAD compared to those who used lower pillows. This risk further increased for individuals using pillows 15 cm or higher, with a 17% higher chance of experiencing sVAD.
The researchers attributed this increased risk to the neck flexion caused by high pillows. This position, where the chin is lowered towards the chest, can put stress on the blood vessels in the neck, especially if the head turns during sleep. This stress can lead to damage and ultimately, rupture of the blood vessels, causing a stroke.
The study also delved into the historical context of high pillow use in Japan. Between the 17th and 19th centuries, high pillows known as "shogun pillows" were widely used by shoguns, samurai, and geisha to maintain elaborate hairstyles. Interestingly, historical essays from the mid-19th century suggest an awareness of the potential health risks associated with high pillows. These essays noted that while high pillows were comfortable, low pillows were better for longevity.
The findings of this study highlight the importance of choosing the right pillow for sleep. Opting for a lower pillow, ideally less than 12 cm in height, can help reduce the risk of neck flexion and potentially prevent the development of sVAD. Individuals who use high pillows or stacked towels are advised to consider switching to a lower option to prioritize their health and well-being.