why dont fingers wrinkle after swimming in salt water?
150690
Fingers wrinkle in bath water because there is a higher concentration of salt in the cells in your fingers, and the water follows the salt gradient (water will move towards a higher salt concentration)- osmosis.  The increased water in the cells causes them to swell making the finger wrinkly (think of a balloon filled with water surrounded by a tight net).  In salt water, the salt in the fingers and the salt in the water are closer to the same concentration, therefore water does not enter the cells of the fingers - no wrinkling.
253075
Boil some water put some salt in it. put it for 15 mins. do some finger exercise.. It happens due to lack of nitrogen & over pressurising of fingers
456970
The answer to your first question is - no, not entirely. The answer to your second question is - it does, that's why your skin gets "puckered" when you are in the bath for too long.\n\nThe skin has pours that open and close, when you are hot these pours open and you often sweat, this is also how you flush some toxins and bacteria from your system, which is why hot baths are good with mineral oils. It's also one of the dangers of showering in chlorinated water, as the chlorine can seep through the pours of your skin, and slowly poison you.
997548
with the proper diet swimming is great exercise.  It works several parts of your body while causing very little strain on the joints.
26598
Because the water that you swam in is cooler than the temperature of you skin, and your body was used to the pool temp.
337720
It could be your sinuses. If I get too much water in my sinuses I often get painful headaches. It usually takes a couple of hours after I swim, though. If I feel a headache coming on after I swim , I take Sudafed or it's generic form. The chlorine can do some substantial damage to your sinuses if you are sensitive to it.\n\nIt could also have something to do with your neck alignment. A pinched nerve or muscle tension my be the cause. Have a swim instructor look at your head position when swimming. Are your ears underwater when swimming? If not, the strain on your neck from you lifting your head might be a cause.
837944
no sunlight and the fluid that you would normally have sweated off is trapped therefore making your skin soggy - also this extra fluid will make you look paler too.
1157705
Your skin gets water logged...too much water and it starts to swell and bloat and wrinkle. Can you imagine what a drowning victim looks like?  Ewwwwww
370712
Your skin is made up of two layers. The outer layer is called the epidermis and the lower level is the dermis. The outer layer (epidermis) produces an oily substance called sebum. You can see this substance when you touch a window or mirror and your "oily" fingerprint is left there.\n\nOne job sebum does is it keeps water out of your skin—a job that it does very well. However, after long periods of time in a swimming pool, shower, or bathtub, much of the sebum is washed off and your outer layer of skin starts to absorb water. As it absorbs water it swells, but since the epidermis is "tied" down to your dermis in certain spots, it expands more where it is not "tied" down and this causes your skin to wrinkle.\n\nThe difference between your skin and a raisin is that raisins wrinkle because they shrink, but your skin wrinkles because it is getting bigger.
938188
Skin is in several layers. The top layers absorb water faster, so they expand and cause the "wrinkled' effect.
638426
you are naturally bouyant, fill your lungs with air as much as you can, and you will float... just dont panic when a wave hits your face
129124
the basic of swimming is that u must breath in i.e fill ur stomach with air then streach ur legs nd hands nd start flapping them like a bird(only legs) nd as far as ur hands r concerned move them in the backward direcion like dis(ur hands->,<)\n\n 1 <(position of ur hands in the forward direction)   then             2 >(backward direction)
909892
Your hands and the bottoms of your feet are more "water permeable" than the rest of your body because they have more sweat glands in them but no oil glands.  So when you expose them to water, and even more so with hot water, for extended periods, the water will begin to go back in just as it is able to come out. When the skin soaks up enough water, which sometimes isn't very much, it begins to expand and prune.\nWeather along with humidity and also one's age has a lot to do with how quickly the skin becomes waterlogged.
519231
Your skin has a limited capacity for keeping water out. \nAfter a long bath, your skin will absorb some water, and will tend to expand its surface. However, due to the lack of space for expansion, it gets wrinckled.
613363
because your cells are trying to maintain homeostasis- in order to work properly your cells need water to use aerobic respiration.( this is the most efficient way to produce energy) To get this water the cells use a method of transportation that allows water to move in and out of the cell membrane. your prune fingers are just the cells filling with water to promote chemical reactions.
234198
salt helps maintain water in the body
722560
human skin when compared to saline ocean or sea water ,the skin itself is more saline due to the sweat we produce