Cardboard Beds in Evacuation Shelters Significantly Reduce Blood Clot Risks

Medical research from the Noto Peninsula earthquake shows early cardboard bed installation in evacuation shelters significantly reduced blood clot risks among evacuees, offering crucial lessons for disaster preparedness.

AI-written summary of Japanese reports; not human-reviewed; check the linked sources. How we write articles

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Key Points

  • • Early cardboard bed setup in shelters reduced blood clot rates significantly.
  • • Blood clots form from sleeping on hard floors in cramped conditions.
  • • Request cardboard beds from shelter staff if not automatically provided.
  • • Include sleeping pad and compression socks in personal emergency kits.

As Japan approaches the second anniversary of the devastating Noto Peninsula earthquake, new medical research has revealed a critical lesson in disaster preparedness that could save lives in future emergencies: the early installation of cardboard beds in evacuation shelters significantly reduces health risks for displaced residents.

According to NHK, medical researchers analyzing data from the Noto Peninsula earthquake discovered that municipalities which quickly set up cardboard beds in evacuation shelters reported notably lower rates of blood clots among evacuees compared to shelters without these provisions. Blood clots, medically known as thrombosis, pose serious health risks and can lead to life-threatening conditions such as pulmonary embolism or stroke, particularly among people forced to remain sedentary in cramped conditions.

The findings carry particular significance for foreign residents in Japan, who may be less familiar with the country's disaster response systems and the resources available during emergencies. Understanding what to expect in evacuation shelters and advocating for proper equipment can be crucial for maintaining health during extended displacement.

The research underscores a problem that has plagued Japanese disaster response for years: the practice of evacuees sleeping directly on hard gymnasium floors or in cramped spaces that restrict movement. These conditions create what medical professionals call "economy class syndrome," where prolonged immobility in uncomfortable positions leads to dangerous blood clot formation in the legs, which can then travel to vital organs.

Cardboard beds, which have become increasingly standard in Japanese disaster response, address this issue by elevating sleepers off cold, hard floors and providing more comfortable resting positions that encourage better circulation. The beds also offer psychological benefits, providing evacuees with a defined personal space and a sense of dignity during traumatic circumstances.

The Noto Peninsula earthquake, which struck on January 1, 2024, displaced thousands of residents and highlighted ongoing challenges in disaster recovery. As NHK reports, nearly two years later, residents in temporary housing complexes in Nanao City recently participated in traditional mochi-pounding ceremonies with recovery support organizations, while the Suzu City Social Welfare Council has seen a significant increase in consultations from disaster victims struggling with financial hardship in 2025 compared to the previous year.

These ongoing struggles have prompted renewed attention to disaster preparedness infrastructure. Renowned manga artist Chiba Tetsuya has launched a crowdfunding campaign to secure at least ten temporary disaster housing units that can be rapidly deployed to affected areas during future emergencies, according to NHK. This initiative reflects growing recognition that Japan must improve its capacity to quickly provide appropriate shelter and living conditions for disaster victims.

For expats living in Japan, these developments offer several important lessons. First, familiarize yourself with your local evacuation shelter locations and the facilities they offer. Second, if disaster strikes and you find yourself in an evacuation center without proper bedding, don't hesitate to request cardboard beds or similar provisions from shelter administrators—they may be available but not yet distributed.

Additionally, consider including basic comfort items in your personal emergency kit, such as a sleeping pad, blanket, and compression socks, which can help prevent circulation problems if proper bedding isn't immediately available. Understanding that you have the right to request adequate shelter conditions is particularly important for foreign residents who may feel hesitant to speak up in emergency situations.

The medical evidence from the Noto Peninsula earthquake demonstrates that disaster preparedness isn't just about survival—it's about maintaining health and dignity during extended displacement. As Japan continues to refine its disaster response systems, residents should stay informed about available resources and advocate for proper shelter conditions that protect both immediate safety and long-term health.

Sources

This article was written by AI from these Japanese-language reports. Check them before acting on anything here.

  1. [1] NHK — original report (Japanese)
  2. [2] NHK — original report (Japanese)
  3. [3] NHK — original report (Japanese)
  4. [4] NHK — original report (Japanese)