As a beginner at the distance running thing I find myself doing a lot of research on what I should be doing. There are many different opinions and philosophies and sometimes what I discover totally surprises me, like today.
I was researching to make sure I knew how much I should be drinking for my first ever 12 mile run because after my first ever 10 mile run I had some trouble with severe nausea and wooziness. I figured it was because I under-hydrated but after some poking around today I discovered it could be the very opposite. That runners often over-hydrate putting them at risk for something called hyponatremia which I had never heard of. When runners don’t pay attention to their thirst and they drink more because they think they are supposed to they are putting their health at risk.
Also, things like drinking water excessively in the days before a race, taking NSAIDs for pain before and after your race and drinking lots of fluids immediately after (all things of which I am guilty!) can be dangerous, not helpful. I also learned that sports drinks truly are better for you than water (the doctor said so!) – so there will be Gatorade in my bottle today, not water!
Some info from the article to be aware of:
As marathoners, we’re all exercise scientists to one degree or another. We put a lot of time into our training, but also understand that we need to eat and drink optimally to perform our best.
1) Don’t drink obsessively in the several days before a marathon. Drink when you’re thirsty; that will get the job done.
2) Don’t take NSAIDs such as aspirin, ibuprofen, or naproxen sodium before, during, or immediately after your race.
3) Weigh yourself before the marathon, and write your weight on the back of your race number. If you need help at the finish line, the marathon medical staff will find this prerace weight very helpful when they attend to you.
4) During the marathon, drink when you’re thirsty, understanding that water, sugars, and electrolytes will help you feel and perform your best. But don’t force yourself to drink.
5) Be particularly careful if you expect to run over four hours, and if you have an unusually small or large body size. Drink less if you begin to get a queasy, sloshy feeling in your stomach.
6) Drink sports drinks rather than water. But don’t expect sports drinks to prevent hyponatremia. They won’t.
7) Don’t chug fluids immediately after the marathon. This is a time, according to a 2003 London Marathon report, when the risk of hyponatremia can be quite high, as stomach fluids are absorbed into the bloodstream. Nibble on solid foods and sip a variety of drinks slowly until you feel well recovered.