Sometimes in life, you decide to go on a great outdoor excursion to get your stagnant blood pumping again. You may try zip lining over a canyon, whitewater rafting down a roaring river, or get your feet wet at a rock climbing gym. Most people may spend the day chasing the adrenaline high of outdoor recreation and then return to their normal day-to-day activities. However, there are a few of us who just can’t seem to get enough of the adrenaline high. These people often become