If you're in the market for a new chair, it's important to consider whether or not it is ergonomic. Ergonomic chairs have been shown to reduce pain and discomfort in the back, neck, and shoulders. They can also help you maintain good posture and minimize fatigue. Here are 3 signs to look for to determine if your chair is ergonomic: 

1. The chair has a straight back. A straight back provides more support to your lower back and helps minimize the risk of injury. Look for a chair with a sturdy backrest and a curve that fits the natural shape of your spine. It should also be wide enough to support your lumbar region without feeling too cramped. A good chair should also provide adequate lumbar support to keep your back properly aligned.
2. The seat offers firm but comfortable cushioning. Many office chairs have a thin, hard cushion that provides minimal comfort. This can cause pain in the back and neck and lead to poor posture and fatigue over time. Your chair should offer sufficient cushioning to keep you comfortable and help you avoid aches and pains. It should be thick enough to distribute your weight evenly and provide firm support.
3. The armrests are adjustable and comfortable. Armrests that are too short or too low can make it difficult to maintain a proper sitting position and prevent you from using your keyboard comfortably. Adjustable armrests allow you to adjust the height to suit your needs and preferences. They should also offer plenty of support and reduce stress on your shoulders and elbows.