Originally Posted by
rekmeyata
You would be surprised as to how much genetics plays into EVERYTHING your body does or cannot do.
And getting too much electrolytes can make even a seasoned pro very sick, just ask these marathon runners:

It's happened to me before in a marathon. I was fighting cramps around mile 23. Tried to get some more fuel down. The rest of the way something didn't feel right. Luckily, the hurl didn't come till right after crossing the finish line. What's amazing is how quickly you start feeling good after the stomach is cleared.