Naked Science Forum
Life Sciences => Physiology & Medicine => Topic started by: michel_mr on 24/03/2005 16:53:10
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hello every one ,
my question is, why is it very dangerous to swim directly after eating, as i know it can provoke heart attack and dizziness....
I really want to know very much.
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[:(] i thought it was to prevent cramping. logic dictates, or at least mom logic dictates, that if you swim, all your blood rushes to your muscles, leaving the food to sit in your stomach like a lump.
that's what mom always told us. never ever underestimate a mom.
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She's right.
The intestines contain a huge amount of muscle which helps to pulverise the nutrients out of what we eat.
But just as a work out gets the heart pumping to deliver enough blood to your biceps so you can bench press half a tonne, a big meal takes a lot of energy to process, and a substantial proportion of cardiac output is diverted to the gut to supply the muscles and pick up the products of digestion.
If you go swimming with a huge meal inside you the guts can commandeer too much blood, depriving muscles in the parts of the body you use to keep you afloat - like your arms and legs ! This can trigger cramp, causing muscles to go into painful spasm, and help you to drown !
Also, a big heavy meal will affect your bouyancy and make you more likely to sink.
Therefore it's a good idea to wait a little while (a couple of hours) after a big meal before doing battle with 12 foot waves, or attempting a cross-channel swim !
Chris
"I never forget a face, but in your case I'll make an exception"
- Groucho Marx
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But just as a work out gets the heart pumping to deliver enough blood to your biceps so you can bench press half a tonne, a big meal takes a lot of energy to process, and a substantial proportion of cardiac output is diverted to the gut to supply the muscles and pick up the products of digestion.
If you go swimming with a huge meal inside you the guts can commandeer too much blood, depriving muscles in the parts of the body you use to keep you afloat - like your arms and legs ! This can trigger cramp, causing muscles to go into painful spasm, and help you to drown !
Does it mean that the only sport good to do right after eating is sumo?
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I think one of the reasons that we are warned is that a large meal may well include the consumption of alcohol which is a common cause of drowning.
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I think one of the reasons that we are warned is that a large meal may well include the consumption of alcohol which is a common cause of drowning.
How old were you when you first heard that warning?
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When you swim after eating, it will causes some problems. The reason was that digestion diverts a portion of your blood spill out of your muscles to your stomach, swimming may some way or another repress that vital blood stream to the stomach, causing issues so extreme that you could suffocate.
By Kay Augustine (Owner of Kay Botanicals)
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She's right.
The intestines contain a huge amount of muscle which helps to pulverise the nutrients out of what we eat.
But just as a work out gets the heart pumping to deliver enough blood to your biceps so you can bench press half a tonne, a big meal takes a lot of energy to process, and a substantial proportion of cardiac output is diverted to the gut to supply the muscles and pick up the products of digestion.
If you go swimming with a huge meal inside you the guts can commandeer too much blood, depriving muscles in the parts of the body you use to keep you afloat - like your arms and legs ! This can trigger cramp, causing muscles to go into painful spasm, and help you to drown !
Also, a big heavy meal will affect your bouyancy and make you more likely to sink.
Therefore it's a good idea to wait a little while (a couple of hours) after a big meal before doing battle with 12 foot waves, or attempting a cross-channel swim !
Chris
"I never forget a face, but in your case I'll make an exception"
- Groucho Marx
I agree you are at huge risk of drowning if you eat before swimming.