No Office Chair

Without an office chair, one may face issues such as health risks, reduced comfort, and potential health hazards, which can be alleviated by using thick cushions or switching to ergonomic chairs.

I. Health Risks
Sitting on an uncomfortable stool for extended periods while studying or working can adversely affect the health of the buttocks and spine. Ordinary stools lack lumbar support, causing the body's weight to concentrate on the tailbone and ischium, which can obstruct local blood circulation and lead to symptoms such as lower back pain and numbness in the buttocks. Prolonged poor sitting posture may also induce chronic conditions like lumbar disc herniation and scoliosis. Cheap or "3-no" office chairs (lacking basic features such as headrests, armrests, and footrests) have design flaws that prevent them from conforming to the body's curves, exacerbating lumbar pressure and increasing the risk of muscle fatigue due to the unsupported lumbar region.

II. Reduced Comfort
Ordinary stools are typically made of hard materials with a small bearing surface, increasing unit pressure. Prolonged use can compress the nerves and blood vessels in the buttocks, leading to frequent adjustments in sitting posture to relieve discomfort, thereby reducing work or study efficiency. Additionally, stools without armrests cannot support the weight of the arms, requiring continuous effort from the shoulder and neck muscles to maintain balance, which can lead to upper limb issues such as frozen shoulder and cervical spondylosis.

III. Potential Health Hazards
Some low-cost office chairs may use recycled plastics or inferior foam as fillers to reduce costs. These materials can release harmful substances such as formaldehyde and benzene, which may cause respiratory diseases or skin allergies upon prolonged exposure. Moreover, the lack of quality control processes can result in unstable chair structures, posing risks of tipping over or breaking, thereby threatening the safety of users.

IV. Mitigation Measures

1. Temporary Improvements: Add thick cushions to ordinary stools to increase the bearing surface and reduce pressure, thereby relieving pressure on the buttocks; or use U-shaped cushions to disperse pressure on the tailbone and improve local blood circulation.
2. Long-term Solutions: Switch to a "3D multi-functional office chair" with ergonomic adjustment features. These chairs allow for adjustments in lumbar support, headrest, and armrest height, conforming to the natural curve of the spine and distributing body pressure evenly. The breathable mesh fabric reduces stuffiness and enhances comfort during prolonged sitting. Such chairs are scientifically designed to reduce lumbar pressure and effectively prevent muscle fatigue and chronic injuries.