The best way to mitigate stress is to understand it. With the Blueberry Stress-Reducing Smart Glasses, you can. This totally safe, clever headset combines brain sensing and electronic tinting to help you understand your mental effort and guide you to perform. This wearable tech uses the information it receives from constantly monitoring your brain activity and heart rate and translates it into how much mental effort you’re using for the task at hand. Blueberry uses all of that data to give..