How can you get dehydrated of salt? And if sports drinks cut it?

[Zeus]

I know that you can get dehydrated of salt if you work out in the heat without any water. But I always hear that people these days eat too much salt(a average dinner contains half a days worth of it). So how hard is it to lose a dangerous amount of salt and the need of sport drinks. I go to the weight room 3 times a week for 40 minutes, and run 2 miles 3 times a week. I bring a 20 ounce powerade to both of these and drink a lot of it each time. So explain the dehydration and if the powerade is worth it or not.

[nicecutefriendlygirl]

eating to much salt causes dehydration because salt sucks the water out of your body. they put a potaote is salt water and it shurnk 75%. when they put a potatoe in normal water it expanded 7%. understand? gateroade is water, salt, and sugar mixed. the sugar is for enegry, the salt is to make u want to drink more. do u have salt poisining? i drank gatorade once it tastes so bad and i threw up. but u can try it if u want.