1. When people stand, thoracic kyphosis and lumbar lordosis in the four physiological curvatures of human spine increase. Sleeping on a hard bed can restore bending. However, compared with standing, sleeping in a soft bed has little curvature recovery and less angle improvement. Accumulated over time will accelerate the degeneration of the spine, and even the instability of the spine will occur.

2, because the soft bed is more comfortable, so the number of turns is reduced, and the lumbar muscles keep a posture for a long time, which is not conducive to health, and the longer the fixation time, the greater the damage to the lumbar spine.

Extended data:

Too soft or too hard bed will destroy the natural physiological curvature of the spine. Too hard mattress will not only oppress the nerves in the back of human body, but also affect the normal blood circulation. After a long time, it will also cause backache and sciatica. If the mattress is too soft and the weight of the human body is not balanced, there will be symptoms such as hunchback.

A mattress with moderate hardness can conform to the contour of the body, allowing heavier body parts to fall into it, while also providing support for other parts of the body. The spine can maintain a natural S-shaped curve, so that all bent parts of the body can be relaxed and accurately supported. Therefore, for the mattress, the internal support system should be "hard" to support the perennial oppression of the body, while the material of the surface in contact with the body should be "soft" to ensure sufficient elasticity and comfort.

People's Network-Love sleeping in soft beds and sitting on soft sofas for a long time. Be careful of your spine and lumbar vertebrae.

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