Ensure your back is firmly against the backrest of the chair. This provides support to your lower back
If possible, choose a chair with proper lumbar support or use a cushion to support the natural curve of your lower spine
Your feet should be planted firmly on the ground or on a footrest to help distribute your weight evenly and reduce strain on your lower back
Your knees and hips should be at approximately a 90-degree angle. Adjust your chair height to achieve this position
Keep your elbows close to your body and at a 90-degree angle, with your forearms parallel to the ground
Position your computer monitor at eye level to avoid straining your neck. Use a monitor stand if necessary
Remember to stand up, stretch, and walk around periodically to avoid prolonged periods of sitting. Set a timer if needed