Probably. Devoting some time each week to any mentally and physically challenging activity will reduce your stress levels. Giving yourself a couple hours to break from your normal routine and forget about everything except what you’re doing “right now” is a great way to recharge your batteries. A good instructor can help you focus intensely on one or two elements of performance at a time during class; as you get better at doing that, you’ll probably find that your concentration at work and/or at school improves as well.