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jackill
2011-08-20 08:57:20
"little steps" from jackill Expand pics
little steps (Expand pics)
Stop walking on your hands Dessie
found the explanation below on yahoo answers

In your body, there are two main "compartments" of fluid. The fluid that is in your tissues such as skin, muscles, organs..etc and the fluid that is in the blood. Fluid is continuously moving between the two compartments. There is a balance in this fluid movement to make sure that too much does not move in one direction. If too much moves towards the tissues, then you have swelling of the tissues. If too much moves into the blood, then you have almost no skin tightness (turgor).

To simplify things, the things that control the net movement of fluid between the compartments are:

1. Proteins and salts in the blood (pulls the water back from the tissues due to the osmotic gradient)
2. Proteins and salts in the tissues (pulls water into the tissues from the blood)
3. Blood pressure (pushes water into the tissues)

If these are altered, then you get a shift of fluid from one compartment to the other.
e.g.
if the blood pressure increases then more fluid moves into the tissues than moving out.
if you have less proteins and salts in the blood, then more fluid moves into the tissues than moving out.
if you have too much protein and salt in the tissues, then more fluid will again move into the tissues than moving out.

When you exercise, you will have a higher blood pressure because the heart is pumping much harder to get more blood around the body. This higher blood pressure may increase the amount of fluid that is moving into the tissues. Furthermore, when you sweat, you lose salts. Fewer salts in the body may also lead to more fluid moving out of the blood and into the tissues. Furthermore, the blood vessels tend to dilate in order to lose heat, this causes a higher surface area inside the blood vessel which may increase the diffusion out of the blood. Why this occurs in some people and not others may be related to disease (high BP and low proteins and salts in blood), or it may be related to the poor circulation (Blood moves out of the limbs and back to the heart slower than blood going to the arms causing a "traffic jam" and increasing the "local blood pressure"), and in some people, it is normal and may be related to just the way their body is built.
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User profile
HoschIchenheim
HoschIchenheim an hour ago.
I'm a Hillwalker from the South-West of Germany near the French town of Strasbourg. I'm mainly walking in the Alps, Vosges and Black Forest mountains. So far on two occasions I have been to Kerry,...

  
Forum: General
Picture test
simon3 an hour ago.
Picture Test

  
Forum: General
Feeling Blue
mcrtchly 2 hours ago.
This is one of the most famous mountain views in Norway of the fishing village of Hamn°y, Lofoten islands with Fellshelltinden mountain (428m) in the background. The rust red cottages are old fish...

Summit Comment
Knocknacusha: Nice end to a day out.
muddyboots 20 hours ago.
Similar to the other contributors, this is not a single summit day out. I did it after Colly. It's an hour or so with a coffee break. Start at the Ballaghasheen pass (spectacular drive in & out) a...

  
Summit Comment
Meenteog South-East Top: Really...when is a mountain a mountain
muddyboots 21 hours ago.
I am sure like many of you, especially simoburn, that the addition of the Arderin Begs while technically needed, added loads more summits to climb. This one is, well, a real hard sell. I was tryin...

  
Summit Comment
Colly: Double entendre?
muddyboots 21 hours ago.
This is a great quick summit- follow the farm track from the end of the road at Coomnaspeara. I met 2 farmers (one on the way up and the other on the descent. There are 2 farmhouses at the end of ...

Track
Keeper Hill from Silvermines (Knockanroe Carpark)
caseyc481 2 days ago.
Wanted to climb Keeper Hill from the Silvermines side. Parked at Knockanroe carpark, walking downhill on fire road unt... walk, Len: 14.9km, Climb: 763m, Area: Keeper Hill, Shannon (Ireland) Keeper H

  
Summit Comment
Shehy More: Try a new approach
muddyboots 21 hours ago.
A nice 2 hour 7.5km loop including Shehy More and Loch na mBreac Dearg. The loop starts at W13435 60417 (room 2 cars) and follows a farm track up onto Shehy More. Also for those including Shehy Be...

  
Forum: General
MountainViews Gathering 2017
simon3 3 days ago.
The event on Feb 17, 2017 had Peter Walker as MC with two main speakers.Gareth McCormack spoke about the vision and technicalities of modern landscape photography.Paul Clements discussed the Wild ...

Summit Comment
Meenavally: A pleasant walk to theTower
BigFly 4 days ago.
Lovely pleasant walk

  
Summit Comment
Two Rock Mountain: Red Grouse near the summit.
BarnaneGoat 2 weeks ago.
I climbed here a few days ago from the east along the Dublin Mountains Way. The summit was shrouded in mist and we went astray at one point. I later discovered this was the result of a way marker ...

  
Summit Comment
Sgurr a'Choire Riabhaich: If Allt a' Choire Charnaig in spate there's a small
melohara 2 weeks ago.
If the Allt a' Choire Charnaig is in spate there is a small footbridge, wires and planks, a little upstream


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