how does weight affect lung capacity?
80795
your lil lungs keep you breathing, right.\nas you gain weight, you put pressure on them, making it harder for them to expand and help pump blood to the heart. ruining everything in your body basicslly
164624
A sheep's lungs inflate like a human's does, as one, not in parts.  The diaphram flexes, pressing downward, as the external intercostals flex, moving the ribcage outward, this causes the lungs to expand.  When they expand, the air pressure inside begins to drop (Boyle's Law), and the air outside begins to rush in in order to compensate for the pressure change.  How much depends on the depth of the breath taken (usually controlled by the amount of CO2 in the body), but it all works as a single unit.
1158303
Emphysema as stated previously is typically caused by smoking and less likely second hand smoke.  So not smoking would prevent the development of emphysema.\n\nThere is another rarely genetic disorder called alpha-1 anti trypsin deficiency that account of 1-2% of all emphysema patient.  \nhttp://www.netdoctor.co.uk/diseases/facts/alpha1def.htm\n\nThe way emphysema works is as follows: people smoke and over time the toxins in the smoke damages and thins out your lung tissue.  As you get less and less lung tissue,  there is less surface area by which the oxygen that you breathe can cross into your blood.  Remember, that with less lung issue there is less surface the oxygen can come into contact with and cross into your blood.  If enough lung tissue is destoyed, there is less oxygen going into your body and your body recognizes this.  You get short of breath.  In addition when you do activity, your body's oxygen demand increase but the limiting factor is the limited amount of oxygen your lung can get into your system.  So people with emphysema have poor exercise tolerance and they fatigue early.  By the time people develope symptoms from emphysema, it is pretty advanced.  The way that I see it is that people have alot of reserve lung tissue initially that compensates for the progressive lost of lung tissue.  There is a point when all your reserve is used up which is late in the ballgame that you become symptomatic.\n\nObviously, anything that tries to push your lungs to do more will result in the lung not being about to meet the demand.  So things like allergies, a common cold, and pneumonia  can all try to push you lungs to do more but it can't.\n\nThis however is a very simplistic view of emphysema but I hope you understand it a bit better.  Getting on medication will help with the symptoms in addition to pulmonary rehab which helps to increase you physical endurance.  Get yearly flu shots and get your pneumonia shots.  See you doctor early when you develop increasing shortness of breathe, a cold or change in you cough or a fever.  Treat allergies and cold/bronchitis aggressively.
1158721
What do you want to know about heart attack. It kills! Being over weight can cause heart problems as well as smoking and many other things. A simple search on the web will give you all the info you need.\n\n\ndp
44934
You can expand your lung capacity via aerobic training (sprint repeats, interval training, hill workouts, fartlek, etc).\n\nIncrease your endurance by increasing the base mileage you run and your long run for the week.  If you put in an avaerage of 40 miles a week, with a 10 miler as your long run, then increase it to 41 miles with an 11 miler as your long run for the next week.  I've found that 10% or less increments in your long run work best, followed with a backing down of the mileage every 3rd week to allow for recovery (do only 30 miles that week, with a long run of only 8 miles).  Most importanyly, when you're trying to increase your endurance, listen to what your body is telling you, and don't overdo it.  If you do, you'll surely be off your feet longer than you'd want to if you hurt yourself.\n\nGood luck, and enjoy your runs!
15049
This all depends on the person. Bigger people can consume larger volumes of alcohol. Metabolism also plays a major role.
65197
I noticed that when I worked out and got really big sholders and arm muscles it turned on my wife more and I had sex with her a little more enjoyable.\n\nI think the idea behind this is it makes you a more healthy person and healthy people have better lung capacity and all that other stuff so it just works out that the sex is better cause its like yeah I'm your body and I can handle all this stuff cause I've been exercised.\n\nFat people are unnattractive so naturally the more you work out the less fat you'll be and the more sex you are likely to get.
999627
depends on your weight
171929
Birds air sacs allow them to have a larger "lung" capacity, therefor if humans had air sacs we would be able to run the mile in a shorter time b/c our bodies would theoretically be able to take in more oxygen.
443013
It depends on how far out of the water you wish to be.  Humans are very close to being bouyant-we are more dense than water, but have lungs full of air, thus a lean man with a large lung capacity is bouyant with a deep breath.  Its isnt the pounds of air that matter, its the pounds of water displaced by the air.  If you hold onto a 10 gallon jug full of air, it displaces 10 gallons worth of water, which is about 80 pds-well more than you need to keep your upper body above water.  For a 200 pd man, he would need an water-displacing container of 25 gallons (this could be a boat or anything else that displaces water for air).
43312
In zero g mass is the same, but weight is different because weight is affected by gravity. People don't actually change size except for the fact that with less gravity acting on the human body, pulling it downward, things tend to puff up a bit. I'm not sure if that's what you mean or not. Hope this helps a bit.
628309
if you have air in your lungs youll float it has has nothing to do with body fat
985470
Emphysema begins with the destruction of air sacs (alveoli) in the lungs where oxygen from the air is exchanged for carbon dioxide in the blood. The walls of the air sacs are thin and fragile. Damage to the air sacs is irreversible and results in permanent "holes" in the tissues of the lower lungs.\n\nAs air sacs are destroyed, the lungs are able to transfer less and less oxygen to the bloodstream, causing shortness of breath. The lungs also lose their elasticity, which is important to keep airways open.  The patient experiences great difficulty exhaling.\n\nEmphysema doesn't develop suddenly.  It comes on very gradually. Years of exposure to the irritation of cigarette smoke usually precede the development of emphysema.\n\nA person may initially visit the doctor because he or she has begun to feel short of breath during activity or exercise. As the disease progresses, a brief walk can be enough to bring on difficulty in breathing. Some people may have had chronic bronchitis before developing emphysema.
1177945
The healthier you get the more efficient your body will be. I suggest that the ten pounds you're hoping to gain is muscle not fat. But still eat regularly not too much sugar in your meal not too less. Exercise a lot. Every morning do stretches, sit-ups, push-ups. And when you get stronger do more everyday. Do that and you will be healthier. Your self-esteem might be better if you do this too. Your lungs probably will be stronger so you can hold your breath longer. A healthy body, a great mind, a great soul.
718206
breathing would not be as deep because the lungs cannot expand this far at such high altitudes\n\nevntually the lungs would get used to this and get stronger, so if someone trained for a sport at these high altitudes, then came back down to their normal altitude the lungs would be stronger and more efficient
417764
It's a question of the relative amounts of muscle and fat, together with the density of your bones. Basically, if your overall body density (mass/volume) is >1 you will sink, if it's <1 you will float.\n\nThe air in your lungs *does* make a difference, since taking a deep breath both expands your volume, and increases the amount of low-density stuff in that volume. If I have a lungful of air, I can just about float; breathe out, and I sink.
506672
Smoking increases the amount of oxygen needed for a specfic task. for example if you run 500 miles your going to need a hell of a lot more oxygen so it takes more energy, and a lot of atheletes don't have that extra energy to spare because they are trying to be the fastest, or run the farthest, you should get the point.