Jackossky:
Haven't you reasoned why sailors or adventurers die on sea and you would be surprised that the cause of death is thirst?

oops,even when being surrounded by water, why not scoop a little to save one's life?

To the curious mind, below is the reason why a person might die when they run out of water on sea.

According to a Quora user

The problem is, the delusion that, any liquid will re-hydrate you.

The reality is a principle called “osmosis”.

Try drinking some saltwater. Really, I mean go ahead and do that. I suggest 2 heaping tablespoons of table-salt, in 2 litres of water. You will want more than 2% w/v of saline in the water. Spike it with a little orange juice to try to keep from vomiting. Try to get it down within an hour or two.

Then, you will RUN to the toilet, and rapidly dump the contents of your guts, with every meal that you had in the last several days.

You will also be dumping large amounts of water. Some people do this as a purgative/laxative process.

If your only supply was seawater, and you consumed it for several days, this can kill you.

Osmosis starts with a membrane, that allows some things through (like water) but not other things (like NaCl table salt or sea salt).

The salty water (with high concentrations/amounts of NaCl salt in it) will actually suck water out of the cells in your gut. Salty water sucks fresh water out of your body.

Some sodium may be absorbed by your gut, and your kidneys will also be working overtime, trying to get rid of the excess.

Another fun fact is that, poor hydration can happen with high-sugar liquids. Again, it is about the high amount of solutes (stuff floating around in the liquid) compared to solvent (the water). I have encountered rest-home staff who didn’t comprehend this, and didn’t care, as they shoved high-sugar juice at elderly people with weak kidneys.

Also, drinking your own urine in the desert sounds badass, but is actually a terrible idea, due to the sodium and urea in it.




Credit: Victoria Campbell
Source: Quora







…

Jackossky:
Haven't you reasoned why sailors or adventurers die on sea and you would be surprised that the cause of death is thirst?

oops,even when being surrounded by water, why not scoop a little to save one's life?

To the curious mind, below is the reason why a person might die when they run out of water on sea.

According to a Quora user

The problem is, the delusion that, any liquid will re-hydrate you.

The reality is a principle called “osmosis”.

Try drinking some saltwater. Really, I mean go ahead and do that. I suggest 2 heaping tablespoons of table-salt, in 2 litres of water. You will want more than 2% w/v of saline in the water. Spike it with a little orange juice to try to keep from vomiting. Try to get it down within an hour or two.

Then, you will RUN to the toilet, and rapidly dump the contents of your guts, with every meal that you had in the last several days.

You will also be dumping large amounts of water. Some people do this as a purgative/laxative process.

If your only supply was seawater, and you consumed it for several days, this can kill you.

Osmosis starts with a membrane, that allows some things through (like water) but not other things (like NaCl table salt or sea salt).

The salty water (with high concentrations/amounts of NaCl salt in it) will actually suck water out of the cells in your gut. Salty water sucks fresh water out of your body.

Some sodium may be absorbed by your gut, and your kidneys will also be working overtime, trying to get rid of the excess.

Another fun fact is that, poor hydration can happen with high-sugar liquids. Again, it is about the high amount of solutes (stuff floating around in the liquid) compared to solvent (the water). I have encountered rest-home staff who didn’t comprehend this, and didn’t care, as they shoved high-sugar juice at elderly people with weak kidneys.

Also, drinking your own urine in the desert sounds badass, but is actually a terrible idea, due to the sodium and urea in it.




Credit: Victoria Campbell
Source: Quora







…

Jackossky:
Haven't you reasoned why sailors or adventurers die on sea and you would be surprised that the cause of death is thirst?

Jeon:

Sea water will dehydrate you due to high level of salt content. kidneys can't handle that much salt, so you will die faster.

…

Datboredberri:
And it melts your skin! If you soak in it for too long...

Jeon:

Sea water will dehydrate you due to high level of salt content. kidneys can't handle that much salt, so you will die faster.

Datboredberri:
And it melts your skin! If you soak in it for too long...

LikeAking:


Smart!

VeryWickedMan:
Only a fool will die of thirst at sea when he can drink his own urine continuously or kill his colleagues and sustain himself off their blood.

Datboredberri:
And it melts your skin! If you soak in it for too long...

VeryWickedMan:
Only a fool will die of thirst at sea when he can drink his own urine continuously or kill his colleagues and sustain himself off their blood.

Rico96:
So if you boil sea water you get salt...nice one

VeryWickedMan:


Which kain lie be dis?