1. Pressure Illnesses

2. At sea level, also known as 1 Atm, the overlying column of air exerts a pressure of 14.7 lbs/in 2. This means that over every inch of your body you have almost 15 pounds pushing down on you! Climbers slowly acclimatize to the difference in air pressure. On the summit of Mt. Everest the air pressure is 1/3 than at sea level. SCUBA divers experience differences in air pressure, too! A a diver travels underwater the pressure increases by 1 Atm ( 14.7 lbs/in 2 ) about every 10 meters or 33 feet.

3. Illnesses and Deep Water (High Pressure) The Bends: illness that can affect divers or other people (such as miners) who are in a situation that involves pressure rapidly decreasing around the body. Symptoms: Caused by: nitrogen bubbles in the blood aches & pains in joints, hard to move joints

5. Acclimation : adaptation to a new climate (a new temperature or altitude environment) The human body acclimates to higher altitudes by: a. Producing more red blood cells to carry oxygen through the body b. Increasing respiratory volume (air in lungs) c. Changes in blood pressure

6. Mount Everest is 29,035 ft high ( 8850 meters). It is the tallest mountain in the world! The tallest mountain in New York is Mt. Marcy, at an elevation of 5344 ft. (1,629 m.) The tallest mountain in the continental U.S. is Mt. Whitney at 14,491 ft. (4417 m.) in California. The tallest mountain in all of the U.S. is Mt. McKinley (aka: Denali) at 20,320 ft. (6194 m.) in Alaska.

7. Mt. Everest On Top of the World

8. Himalaya Mountain Range http://www.colemaneverest.com/coleman/everest/team_video.asp

9. Elevation: 29,035 ft (8850m)

11. High altitude is defined as:  High Altitude: 1500 - 3500 m (5000 - 11500 ft)  Very High Altitude: 3500 - 5500 m (11500 - 18000 ft)  Extreme Altitude: above 5500 m Practically speaking, however, we generally don't worry much about elevations below about 2500 m (8000 ft) since altitude illness rarely occurs lower than this.

12. High Altitude Illness can result from Rapid Ascent Hypoxia: Low oxygen (O2) levels in the body Acute Mountain Sickness (AMS) Generally occurs above 8000 ft. (2500 m.) Symptoms:Prevention: HeadacheSlow ascent Loss of appetite, nausea, or vomitingProper hydration Dizziness or light-headedness Difficulty sleeping Treatment: Rest Pain relievers (ibuprofen)

13. High Altitude Pulmonary Edema (HAPE) Most altitude related deaths occur from HAPE Symptoms:Treatment: Shortness of breathRapid, immediate descent! Dry, intense coughingOxygen FatigueKeeping warm Mild feverGamow bag Increased heart and respiratory rate

14. High Altitude Cerebral Edema (HACE) Considered to be the end stages of AMS Symptoms:Treatment: Same as AMSRapid and immediate descent! ConfusionOxygen HallucinationGamow bag Unsteady gait (loss of balance) Extreme fatigue progressing to unconsciousness

15. Gammow Bag

17. The Trash on Mt. Everest

19. Empty bottles litter the ground on the South Col route to the summit of Mount Everest. According to some estimates, more than 50 tons of non- biodegradable trash were abandoned on the mountain between the 1950s and the mid-1990s.

21. Overlooking the South Col 1963 1994