"The stated problem is... what happens after you absorb the salt water" — other comments about this paragraph notwithstanding, it's just not true that simple os

"The stated problem is... what happens after you absorb the salt water" — other comments about this paragraph notwithstanding, it's just not true that simple osmosis from blood to cells is the operative factor in hydration, so the article is totally off-base. You can't talk about hydration without talking about intestinal absorption and concentration of urine in the kidneys.