What is a hard bed back pain?

When sleeping in a hard bed, it is easy to cause low back pain. Because the bed board is too hard when sleeping, it causes local pressure on the muscles of the waist and back, causing local muscle blood circulation disorders, and then shows low back pain; the second kind is due to sleeping in a hard bed when the muscles of the waist and back depression are suspended, showing muscle tension, muscles are not fully rested, and it is easy to show symptoms of strain, and finally causes low back pain. Therefore, when sleeping, the bed is not recommended to be too hard. It is not good for the rest of the back muscles, but it is not good to be too soft. It is recommended that the mattress for sleeping should be soft and hard. The softness of the mattress is suitable for the relaxation of the lumbar muscles.