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.
A compass will point the same whether it is in the northern or southern hemisphere. The needle on a compass is designed to magnetically line up with the earths poles.Therefore the north end of the needle of the compass will point to earths north, and the south end of the compass needle will point towards earths south whether you are in the northern or southern hemisphere.he compass always aligns itself with the magnetic field in your locality; unless there is a magnet around, then it will point to the magnetic item.