Hypoxia and Medicine

Is it healthy to live at high altitudes? I've heard that your health increases if you live in the mountains because your heart and lungs have to increase in strength to get enough oxygen. And also that olympic altheletes train at high altitudes to help build up their strength. But what kind of health benefits could one get from living high above sea level?

Why is it necessary for airplanes to fly at such high altitudes? Commercial airplane Jets (i.e Boeings, Airbus') fly at altitudes of 30,000-40,000 feet during the course of their flight. I never have understood why it was necessary to do so. Why can't they fly at 4,000 feet or so? Wouldn't it be easier for a pilot to maneuver a more safe landing in the case of an emergency if the airplane was not so high in the air?

Why do lungs expand at high altitudes? I did something for science about the dangers of high altitudes such as lungs expanding too much and collapsing/exploding because of too much expansion. What is the reason for the expansion though?

Were can you learn to jump from high altitudes and land safely? How can you learn to jump from high altitudes and land safely?I have seen people do it

is it OK to drive to high altitudes while 7-8 weeks pregnant ? Could anybody shed some light on this please? My husband and I are flying to maui this weekend we are planning to drive to high attitudes, maui highest altitude is 10,223 feet high, I am 6 weeks pregnant could this harm the fetus. Thanks koolrunning

Are auto modifications such as plenums, air intake systems, K&N filters, etc effective at high altitudes? I have an 03' 350z and considering plenum spacer, will this be a good modification for high altitude driving (7200ft)? I have always heard that air density dramatically decreases. About 3% horsepower loss every 1000 ft. With less air density will this mod be effective? Wish I could afford turbo!

how do potato chips get transported to high altitudes without exploding? while traveling over a high altitude mountain our chip bags began to explode from pressure.....how do all the chip distributers get chips over those mountains and why don't the bags exlode in the stores up high in he mountains

Can jet airliner doors be opened at high altitudes? I thought they opened inward and at high altitude it is not possible to open one because the cabin pressure is greater than the outside air pressure, but a CSI episode shows passengers fearing for their lives because someone was trying to open the door in flight. If they open inwards then there is no way someone has enough strength to pull the door inwards first.

Why do items like cake mixes have different measurements and baking temperatures in high altitudes? I always see on brownie mixes to add more or less water, oil, eggs, etc. when you are cooking at higher altitudes

The mystery of how rain is formed into mass by falling from high altitudes and will create an electric mass? Water is drawn by evaporation and rises to the highest altitude possible . Where there are different altitude pressures like mountains or low plains changes heat extraction from water as this is why there is snow and water .Evaporated water falling at a certain speed and depth will create mass cloud but dictated by wind pressure created by the turning of the planet .Water also carrys minerals and as evaporated water falls ( just imaged two flint rocks clashing and sparking)molecules clash and bounce off each other with a combination of the earths magnetic field thus creating lightning .All the mineral in sea water comes from the earth and from volcanic activity this is why in fish there is high amount of volcanic mineral in fish(mineral plays a part in everything).The only reason the clouds stay up is because the world is turning and altitude pressure.Whats your veiw on this topic .Answers appreciated .Einstien the stars, science and belief? Now you all know Thors hammer was made of minerals .

what are means of communications in high altitudes? how do people communicate at high altitudes.

Cooking at high altitudes? How does cooking at high altitudes effect the amount of ingridients you need

Why are high altitudes best for for commerical airliners? Or, why is it beneficial for any airplane to fly above sea level? What is better about air at 35,000 ft.? But why is less fuel required? And doesn't less air mean less lift, which would require more thrust to overcome?

How are jet aircrafts that fly at high altitudes pressurized?

What changes should I make in a bread machine recipe for high altitudes? I just got a bead machine and i'm pretty sure i'm going to have to make some changes so that everything turns out alright. I live at 4,300 feet. Could someone help me here? Like maybe cut back on flour or add water per cup of flour? Much appreciated.

Why do airplanes appear to move slowly at high altitudes when looking from the ground?

Why can a cessna fly at very high altitudes as the boiengs and airbuses do ? And why ?

How do you make pizza dough rise in high altitudes?

Re:parachute Q : Why is it a commonly held belief that planes plummet to the ground from high altitudes? If people had parachutes they wouldn't perish from the plummet. Just kidding on the second part. I know that I should get my poetic license suspended for taking that many alliterative liberties with the language. Clearly I need to work on my writing skills. I know that airplanes don't fall out of the clear blue sky. I know that the few air crashes that do occur usually occur within a few minutes of take offs or attempted landings . I know that parachutes are completely useless in these situations. I know that I have flown over 200K w/ UAL alone What I don't know and I'm trying to get an answer for is why the perception of airplanes falling tens of thousands of feet is so firmly ingrained in the minds of the general public. Every time that somebody asks the Why a life preserver but not a parachute question. There are many answers that start with "Yeah why not ? If I was in a plane falling from 35000' I think that the airlines should give me a means to save myself Why aren't they ? " oops . I'm just asking the people that fly for a living and aviation professionals why do you think the public thinks this way, that's all

Why does your nose start to bleed when you reach high altitudes? and why do your ears pop

Why do we have to cook our food differently in high altitudes?

Can soybeans be grown in high altitudes? 3000 meters ? I am interested in growing soybeans in the Andes mountains on fertile farm land at around 3000 Meters altitude. The clmate is fairly mild, but the temperature does dip below freezing sometimes. Is it possible to sustain growth of soybeans in this type of climate and altitude? Thank You!

How do people prevent frostbite at high altitudes or at low temperature or both? Frostbites are very common in low temperature areas. what are the ways to prevent them?

Is it easier or harder to get drunk at high altitudes? I am in a city at 2700m abouve sea level and was wondering if it easier or harder to get drunk at this altitude. I drank a fair amount last night (although I´m not sure how much as the pub wasn´t measuring the spirits, but they were at least doubles each glass), and I didn´t feel too drunk. I know I should be able to work out the physics of alcohol disolving in your blood a altitude ect but between me and my friends we could jusify both arguements. Which is right? Ok, so it´s easier, but why?

Why does yelling at high altitudes cause avalanches? Or is that simply a myth?

Gas laws and baseball? why can you hit a ball farther at high altitudes? Why can you hit a ball farther at high elevations? What do gas laws have to do with baseball? Charles Law, Boyles Law, etc.

Why do ailiners have to fly at such (relatively) high altitudes? Why not fly at say, 1000ft? wouldnt have to pressurize cabins and all that, and save fuel, and faster journeys too Also, when pilots land 777s and similar in really bad weather, does it take total concentration for them to land, or is it like 2nd nature for them?

Can extremely cold conditions and high altitudes really cause you to go blind after having lasic eye surgery?

How well would a diesel engine run at high altitudes, say at 5000m? Specifically a Nissan Patrol travelling through the Tibetan Plateau.

What can break the surface tension of water at high altitudes?

what are some mental effects of climbing in high altitudes? i know the physical effects i just need to know the mental ones! please help me p and t

What are the mental and physical effects and problems of climbing at high altitudes on Mt. Everest? Can anyone tell me..please??..Im not sure and I need to know...thanks guys!!

Which of the following represents a feature that would allow humans to get enough oxygen at high altitudes? (1) a decrease in the breathing rate, combined with a decrease in lung size (2) a reduction in the amount of hemoglobin in the blood (3) an increase in the amount of hemoglobin in the blood (4) a decrease in the area of the gas exchange surface inside the lung

why is it difficult to cook dehydrated foods at high altitudes? most helpful if answered by 10:30

Why is weather and air cold at high altitudes and mountainous areas? If it is because of the composition of atmosphere like nitrogen, oxygen and carbon dioxide, then why is nitrogen cold and carbon dioxide hot?

Effects of Supersonic speed by Passing Jets on wildlife...sonic boom occurs at low and high altitudes? Canadian Forces jets flying from Cold Lake, Alberta are restricted from flying at supersonic speeds over certain areas. Discuss the possible effects on wildlife subjected to regular supersonic air traffic. Explain why high altitude supersonic flights affect a greater area but have a diminished impact. I need this by tomorrow, this question will be on my physics test on Sound and Waves. Thank you. The altitude of the sonic boom is not very important. I need to know the EFFECTS of a supersonic jet and its sonic boom on wildlife that it is flying above of.

High Altitudes....what happens?? At higher altitudes? What does pressure do at higher altitudes? What effect does higher altitudes have on cooking and baking? Examples, details, and proof if possible... Also: What other kind of interesting things happen at high altitudes and how people compensate when they live in higher altitudes? Also...what happens to temperature and oxygen at high altitudes? If you could answer parts or alll of this it would great. If you do answer, though will you please tell me about it in english so i can understand. Examples and details would be great! Thank you all

How would one go about defecating while climbing Mount Everest or other mountains at high altitudes/low temps?

Planning long-distance hike to include high altitudes; need exercising tips to get into climbing shape. help?. experienced long-distance hiker; ignorant in training for high altitudes. seeking exercise program and advice on effects of high-altitude challenges, such as appetite, moods, and endurance. i am physically-fit for flat land activities. i walk, jog, and bike long distances, and am healthy.

Why do people living in high altitudes more vulnerable to the suns ultraviolet rays?

How running in the fog or at high altitudes help your longs and your running? or in the heat

Why does it take longer for an egg at high altitudes?

nutrition facts may vary in high altitudes? I was eating a Klondike bar, and got bored, so I went to there website and noticed this ... "Nutrition facts may vary in high altitudes" What does this mean? Why do they vary? Also, Where was ice cream first created? Many thanks to all who answer :) The actual Article from the website Nutrition Facts Serving Size 4.5 fl. oz. Servings Per Container 6 Amount Per Serving Calories 250 Calories from Fat 150 Total Fat17g Saturated Fat13g Trans Fat0g Cholesterol20mg Sodium55mg Total Carbohydrates22g Dietary Fiber0g Sugars18g Sugar Alcohol Protein3g Vitamin A 4% Vitamin C 0% Calcium 8% Iron 0% Kosher Ingredients and Nutrition Facts are current as of 7/1/07. Please see shelf packaging for any changes. Nutrition Facts may vary in high altitude areas.

when it comes to respiration how does the human body adapt to living in high altitudes?

what is the clouds name that appears at dark at low to high altitudes? please help need fast

why do mountain climbers need warm clothing and oxygen masks on high altitudes?Is air thinner or denser?

Cake mixes often give “high altitude” directions. Why does more water need to be added for higher altitudes? A. The pressure is greater, and the boiling point of water is higher. B. The pressure is lower, and the boiling point of water is higher. C. The pressure is greater, and the boiling point of water is lower. D.The pressure is lower, and the boiling point of water is lower.

is the blood in the human body thinner or thicker at high altitudes?

Would living at high altitude reduce oxidative stress on the body? . . .considering the reduced pressure of air (and thus oxygen) at high altitudes. My hunch is that in much the same way calorie restriction is thought to reduce oxidative stress, "oxygen restriction" may have the same effects.

why do foods cooked in boiling water at high altitudes need to be cooked longer then at sea level?

Training at high altitudes? i need a link to show why athletes train at higher altitudes.

Effects of Supersonic speed by Passing Jets on wildlife...sonic boom occurs at low and high altitudes.? Canadian Forces jets flying from Cold Lake, Alberta are restricted from flying at supersonic speeds over certain areas. Discuss the possible effects on wildlife subjected to regular supersonic air traffic. Explain why high altitude supersonic flights affect a greater area but have a diminished impact. I need this by tomorrow, this question will be on my physics test on Sound and Waves. Thank you. The altitude of the sonic boom is not very important. I need to know the EFFECTS of a supersonic jet and its sonic boom on wildlife that it is flying above of.

Headaches @ high altitudes? I currently live in southern california where we are close to sea level--i guess. well, when i was traveling to albuquerque a couple years back, i remember that i had a terrible headache and was nauseous the whole time i was there. My friend told me that it was because of the change in altitude (albuquerque is supposedly higher in altitude) . what caused my headaches/nauseousness? and i am going there in a couple weeks... is there any medication that i should take with me? any advice? helpful tips?

t/f The speed of sound at high altitudes,where the air is less dense, is greater than the speed of sound at? low altitudes, where the air is more dense?science0

What CHEMICAL change happens when a jet flying at high altitudes makes that white trail behind it? when you see a high flying jet have that white trail behind it .....scientifically...JUST wondering .....

Why must piolets wear oxygen masks when they fly at very high altitudes? i need a response for my science homework? hehehe thanks hint: and its not because when the more high u go the less oxygen there is...THATS WHAT I WRTOE DOWN AND ITS WRONG..LOL

I love high altitudes. I have been up to about 15,ooo feet.I heard your body PH changes.What does that mean??? Many people around me have gotten altitude sickness. Even the ones that don't aren't so energetic. I am not a runner but when I get to elavation I just want to run around. Have a little problem with breathlessness but goes away when I rest. What's going on in my body and why do I feel so much better?

will high altitudes kill a red eared slider turtle?? I'm moving to Colorado, and driving. Will living in the high altitude kill the turtle.

does high altitudes kill snakes and why?

Why are high altitudes cooler than lower areas?

Does Anyone know if living at HIGH ALTITUDES hurts your JOINTS? I was like a mile up in the mountains for a week, and when I got back to 1000 foot altitude, my HIP was KILLING me!! Any CLUES to what could have caused my Hip joint to go on me?

would living in high altitudes for a long time cause memory loss,necessarily?

Besides being in high altitudes, what causes ears to snap, crackle, and pop?

Polycythemia,occurs at high altitudes. what its benifit and its adverse effects? subject :physiology

Why battery lifetime depends on altitude? At high altitudes, 4-5 kilometers, battery lasts less.? 5 km is about 15,000 feet.

Why do people living at high altitudes have a higher RBC count?

do fleas survive in high altitudes?

can bugs fly at high altitudes? if not, why? like, i never see bugs flying over 10 feet, why?

how could living at high altitudes affect breathing rates?

Why we feel cold in high altitudes?

why do balloons pop at high altitudes? this is a serious question and I'm trying to do a science fair project

Why is Oxygen low at high altitudes?