Almost one-third of a person's life is spent in bed. Especially the middle-aged and elderly people are in the most critical period of life health care and maintenance, so we should attach great importance to and straighten out the relationship between bed selection and sleep.

Some scholars believe that people sleep in different beds, and the spine will change to varying degrees. Over time, once the changes in the spine are finalized, it will cause lumbar muscle strain and pain. Or aggravate the symptoms of patients with original strain. Therefore, maintaining the integrity of the spine and improving the physiological curvature of the spine is one of the important measures to prevent and treat lumbar muscle strain.

There are many kinds of beds, such as wooden beds, brown stretched beds, wire spring beds, etc. Kang is more common in the north. With the improvement of living standards, Simmons gradually entered the family field. In fact, Simmons, spring bed and loose brown elastic bed, people's spine is curved when lying on their back and sideways when lying on their side. So these beds are not suitable for middle-aged and elderly people. From the point of view of health care, a 9 cm cotton pad on a wooden board or kang can basically keep the spine in a normal physiological state.