I understand from many people that “back pain” is quite common in Singapore especially for those “white-collar” people. I was suggested I sit straight. Well, it helps a little. And, the more important thing is, “sitting straight” just makes me feel uncomfortable.
Surprisingly, the latest research suggests not to “sit up straight”; leaning back is a much better posture.
When strain is placed on the spine, the spinal disks start to move and misalign. At a 90-degree sitting position, this movement was most prominent. The disks were least moved when subjects were sitting back at a 135-degree sitting position.
Sitting on a chair that provides proper support, such as a slightly tilted back car seat, can mimic the relaxed supine position. Slouching caused a reduction in the spinal height which means that there was high rate of wear and tear in the lowest two spinal levels.