Just like I suggested with the other post like yours, here it is:
-Do not slouch when standing or sitting.
-If you spend most of your time sitting, pay careful attention to consciously sucking in your belly and rotating your pelvis slightly up. At the same time, you should keep your head back, with your ears over your shoulders and your shoulder blades pinched. This posture will keep your spine in proper alignment. Do this every hour youâ€™re sitting, holding the muscles tight for several minutes.
-Sit in chairs or car seats with good lumbar support.
-Switch your sitting positions often. I would also recommend periodically walking around or gently stretching your muscles to relieve tension.
-Avoid bending over without supporting your back.
-Get enough vitamin D from sun exposure daily, as vitamin D helps keep your bones, including your spine, strong.
-Drink plenty of water to enhance the height of your intervertebral disks. Since your body is composed mostly of water, staying hydrated will keep you fluid and reduce stiffness.