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WHY ALTITUDE AFFECTS YOUR BODY

                                       Most of the problems are caused by lack of oxygen. Because the atmospheric pressure is lower the higher you go, at 2,000 meters above sea level, a given volume of air contains some 20 percent less oxygen, and at 4,000 meters, air contains 40 percent less oxygen. Lack of oxygen affects most of your bodily functions. Your muscles can do less work, your nervous system can take less stress, and your digestive system cannot handle fat as well. Normally when your body needs more oxygen, you automatically breathe more heavily and fill the need. Then why doesn’t this happen when you arrive at a high altitude? Just how your body controls your rate of breathing is a wonder that is not completely understood. But when you exert yourself, heavy breathing is not triggered simply by lack of oxygen. Rather, the carbon dioxide buildup in the blood produced by the muscle activity seems to be a key factor in making you breathe more. You

WHAT YOU MUST KNOW ABOUT YOUR BONE

                                              Bone has been described as an engineering masterpiece of tensile, compressive and elastic strength.           The human skeleton consists of approximately 206 bones and 68 joints. The largest bone is the femur, or thighbone; the smallest is the stapes, a bone inside your ear. As skilled gymnasts clearly demonstrate, bones, muscles, cartilage, and joints can give a healthy body an astonishing degree of flexibility and range of movement. The thumb alone would convince anyone that the architect of our body [whoever that may be to each one of us].         Bones can also take an incredible pounding. They are constructed in exactly the same way that reinforced concrete is constructed. The steel of reinforced concrete provides the tensile strength, while the cement, sand, and rock provide the compressional strength. However, the compressional strength of bone is greater than that of even the best reinforced concrete. We only wish we co