Steroids and other medications. Long-term use of oral or injected corticosteroid medications, such as prednisone and cortisone, interferes with the bone-rebuilding process. Osteoporosis has also been associated with medications used to combat or prevent: Seizures; Gastric reflux; Cancer; Transplant rejection; Medical conditions
The main functions of using a compass are: 1  tell which direction you are traveling - your heading. 2  tell which direction an object is from you - its bearing. 3  keep you following a straight line of travel. 4  orient a map - aligning a map with the actual land.  triangulation - determining your location with a map.
With a compass hat, I developed a sense of direction. As I mentioned in the last post, I used to have a pathetic sense of direction. I couldn't find my way out of the proverbial paper bag. If I was driving and approached an intersection from an unfamiliar angle, I'd have no idea where I was.