Your chair quietly decides how your back feels, how long you can focus, and how productive your day becomes. This guide breaks down ergonomic features, practical adjustments, and what truly matters when you compare options in the store or online. You’ll learn how to fit a chair to your body, spot durable construction, and budget wisely without overpaying for hype. If you spend hours seated, these insights can help you work with more comfort and fewer distractions.