Most of us are tied to our phones or work with some sort of computer system. There is an electromagnetic net that spans over all places with electronics. This can cause a sense of uneasiness, and make you feel nervous.
Black Tourmaline can help to negate that net, simply place a few stones around your electronics or the corners of each room to make a safe and comfortable place for you to work or play.
In my experiences with OCD I have noticed that these stones tend to ease my mind. They help me to focus on the here and now. They also focus on the Root Chakra, involving grounding and a sense of purpose. I for one know that I need these stones.