It is important to remain alert of your level of hydration in hot as well as cooler temperatures, especially while doing long distance running.
Discomfort observed during long distance running is not only due to dehydration but on the contrary, overhydration.
Drinking too much water during a race can lead to hyponatraemia, which is a decrease in the amount of sodium in the blood. This pathology can lead to discomfort, confusion, nausea and vomiting, and in extreme cases, may lead to a coma. To avoid these symptoms, it is strongly recommended to drink only when you are thirsty, not to prevent thirst. In case of hyponatremia, it is important to avoid the ingestion of liquids, and to consume salt.
What other issues should you be alert to during a long distance race?