Swimming and breathing: in through mouth, out through nose?
407304
You're suppose to breathe in through your mouth and breathe out through your nose in the water.
1070726
If it is well controlled, yes.  If not, you are at serious risk for a lung injury.\n\nHere is why.  Asthma is an inflammation of the breathing passages.  This reults in anrrowing and can result in air being trapped (at leats for a short period of time).  At constant pressures, no problem.  But when diving the ambient pressure changes.  \n\nIf you filled a ballon half way full at 30 feet depth, when you surfaced the ballon would be fully inflated.  (The reverse is true as well).  The problem is what if the air inside a trapped space doubles in volume - it has to go somewhere.  Barotrauma is the result.  The ability to equalize these pressure is essential to SCUBA diving -- be it the lungs, inner ear or sinus.\n\nOne other wrinkle: SCUBA can trigger asthma.  Some asthma seems to be initiated by breathing in a bit of salt water (unlikely, but it could happen) or by exercise (like kciking against a current).  \n\nMy advice:  Consult with a doctor familiar with diving physiology. and your clinical history.
131362
The most common misconception about swimming is you hold your breath while your face is underwater. That's like telling a runner that you can only take in a breath on every 5th stride. When swimming you are breathing just as you would any other sport except you have to regulate your breathing. While your face is underwater you should be blowing out your air, slowly. The 2 main reasons are 1) blowing out underwater helps you to keep your mouth and nose clear of water and 2) it will give you more time to take in air when your face is above the surface of the water.\n\nBlowing air slowly underwter forces the unwanted water out of your nose and mouth. If air is coming out, water can't come in. It also helps gives you more time to take in breaths. The short time that your face is above the surface of the water, should be spent taking in air. When you expel most of your air underwater, you clear your airway and should be able to get a bigger breath of air when your face bareaks the surface. If you have to expel your air and take in a breath in that short time you will probably not get a good breath.\n\nA drill that helps is to do a single arm stroke, stroke using your right arm only, then your next set practice only your left side. When doing this your body is being leveled off by your kick. This way you can take a slower stroke and concentrate on your breathing. Watch your head position: your spine should be straight, chin tucked by your shoulder, and concentrate on looking slightly back when your face surfaces. Practice breathing on both sides and blowing yur air out. A lot of times this helps to keep your body more balanced and you will be able to swim straighter.
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Swimming is a technique to move unaided through water. This article concentrates on human swimming, a popular recreational activity and a competitive sport. There are many health benefits of swimming, but it also entails risks.\n\nSwimming has been known since prehistoric times. Drawings from the stone age were found in "the cave of swimmers" near Wadi Sora (or Sura) in the southwestern part of Egypt. Written references date back up to 2000 B.C., including Gilgamesh, the Iliad, the Odyssey, the Bible (Ezekiel 47:5, Acts 27:42, Isaiah 25:11), Beowulf, and other sagas. In 1538 Nicolas Wynman, German professor of languages, wrote the first swimming book "Colymbetes". Competitive swimming in Europe started around 1800, mostly using breaststroke. The front crawl, then called the trudgen was introduced in 1873 by John Arthur Trudgen, copying it from Native Americans.\n\nSwimming was part of the first modern Olympic games in 1896 in Athens. In 1902 the trudgen was improved by Richard Cavill, using the flutter kick. In 1908, the world swimming association Federation Internationale de Natation (FINA) was formed. Butterfly was first a variant of Breaststroke, until it was accepted as a separate style in 1952.\n\nTechnique\nThe human body is composed primarily of water, and thus has a very similar density. But since only roughly 70% of the body is water, it is slightly less dense than the surrounding water, which exerts a buoyant force on it. Thus, staying afloat requires only a slight propelling of water downward relative to the body, and transverse motion only a slight propelling of water in a direction opposite to the direction of intended motion, due to generally low hydrodynamic drag. This propelling is typically accomplished by cupping the hands and using them as paddles, and by kicking the legs to push water away from the body.\n\nWith practice, technique can convert a slow or average swimmer to at least a moderately fast swimmer. Since speed converts directly into distance, the same techniques that improve speed also aid one to move farther with the same effort. The torso and the legs should be kept as much as possible parallel to the surface of the water. Dropped legs or a slanted torso dramatically increase drag. The hand should be extended forward of the head as much as possible. This increases the average length at the water-line, substantially increasing speed. This is an effect long used by boat designers, and unconsciously used by "naturally good swimmers."\n\nThe time spent on the side should be maximized because the torso is narrower front-to-back than side-to-side on most swimmers. This reduces the frontal cross-section, reducing drag further, and also increasing the ratio between the body's water-line-length and width. Similar improvements are possible by orienting the narrowest direction of head, hands, legs and arms into the water. The torso is by far the most critical. The motion of the hand, arm, and leg from the back to the front should be in the air for as much as possible, and in the water, oriented as perfectly as possible, because the returning appendage has to move at least twice as fast as the swimmer, and in the water generates eight times the drag (which increases with the cube of the speed) of an equal amount of torso frontal area.\n\nThe basic "catch" of the water is not nearly as critical as the above items. Most swimmers simply grab water with their hand flat, or the fingers slightly spread, and then draw it smoothly down their body. None of the above techniques require improved strength. With strength training, the hands and feet can be extended further into the water, gaining more propulsion. For beginners, increased strength brings only small improvements if the above strategies (minimising drag and lengthening water-line) are not optimal. A number of swimming styles have been developed based on the implementation of some or all of these principles.
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It depends on what level you are talking about learning to breath.\nFor a first-time swimmer, doing bobs (submerging the face and blowing bubbles, then coming up for air, repeatedly) helps. This reinforces the practice of blowing out your breath underwater and not holding your breath.\nFor beginners, being comfortable in the water. Might sound simplistic but a fear of the water (even a slight apprehension) makes breathing difficult.\nIf you are talking about the front crawl (freestyle), the one hand stroke drill helps to emphasize correct body positioning while breathing and practices breathing on both sides.
38515
swimming - very healthy
645144
you could breathe through a tube down as deep as perhaps one atmosphere.  beyond that the surrounding water pressure on your chest would prohibit you from taking a breath from surface air.
75836
Yes. But then you'd have to breathe in after that, which is not a good idea when under water.\n\nTry this experiment in the bath: inhale, blow the baloon, and then surface for air.
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jellyfish 'breathe' by simple diffusion of oxygen from the water around them.  they don't have much of a metabolism, so don't require huge amounts of oxygen.\n\ncrabs and prawns are both crustaceans, and breathe through series of leaf-shaped gills under their abdomen called phyllopods.\n\nsea stars i can't recall for sure, but i think they also breathe primarily through diffusion between their skin and the water (again, not terribly active, so low metabolic needs).\n\noctopus breathe through large feathery gills inside their mantle.  each gill has its own associated heart to help spread the oxygenated blood around the body.\n\nsea snakes have lungs just like you or I do (although one lung is usually very tiny or even totally missing) and need to breathe air.  they swim to the surface every so often to take a breath before diving back under the sea.
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Sure.  A vest works just fine.  All you have to do, minimum, is float face down on the water and kick with fins on.  It's an odd sensation to breathe through the snorkel, though, and if you're uncomfortable in the water it can be a little scary.  \n\nLots of folk like to dive down to look more closely, but not necessary to enjoy it.  But yes, if you're not a good swimmer, definitely wear a vest.
232358
inhalation is breathing in, exhalation is breathing out
916868
For swimming underwater, you need to condition yourself small steps at a time. First just dunk your head underwater with a stopwatch, see how long you last, then try going longer, at least like 2 seconds, each try, after a while your lungs will get used to it. I did that and after a while I could hold my breath for 2 minutes and 10 seconds underwater, it's not much but it's a lot better than the 45 seconds I could before. For singing, it works differently, although you could reinforce your breath holding by using the technique above. What works for me though, is taking small breaths, like 1/2 seconds breath every once in a while. I learned to do so by watching rappers, they do it from time to time to be able to keep on going. Good luck with that.
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Most likey, you used to breath through your nose and now you breath through your mouth.  Have you had a cold recently?  Allergies?  Your nose might be stuffed up, causing you to breath through your mouth.
608200
Don't worry !!! First you must feel very comfortable in the water - walk, run, jump etc. Next step is contact water with your face. If you feel that everything is all right then you can hold your breath under the water: standing at the wall, with and without float (or another equipment). First start swimming with some equipment (legs, hands) and then start do it without those things. Process of learning  is very difficult to describe and put it down.I can say something more about your movement in the water  if I could see how you move.Some people learns very fast some doesn't want to even put their face into the water. I had all of them and now their can swim :) so don' worry :)
337122
my friend goes running and swimming and hes losing his...but run long distances and swim laps instead of just playing around...front crawl (freestyle) and back crawl (backstroke) and definitely breast stroke are probably the best swimming methods
1047861
I have been on the swim team for a long time and im 3rd in the state at breast stroke, but i still know about freestyle. i usually dont think about how many strokes i take before a breathe. i think if u just do whatever feels comfortable you will have 1 less thing to think about so you go faster. When i first hit the water I'll usually take 4 or 5 strokes before i take a breathe cuz im so pumped up.
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lungs, mouth nose, heart