Staying hydrated is an absolute must for your health, especially when you're working out in hot weather. Water is the best way to keep your body temperature regulated and your blood circulation flowing. When you sweat, the liquid pulls heat away from your internal organs and redirects it through your bloodstream to your pores. As the sweat evaporates, it cools down your body.
Propel and other exercise waters contain sugar substitutes, so they won't provide any calories from carbohydrates. Eating foods like watermelon, cucumbers, milk, oranges, apples and lettuce can also help you stay hydrated. These foods are mostly made up of water and can help you stay hydrated without adding too many calories. Dehydration is not as common as overhydration, but it can still be dangerous.
Symptoms of dehydration include bloating, nausea and in extreme cases, brain seizures or death. Electrolyte sports drinks can be useful for people who do intense exercise in hot weather, but they usually contain a lot of added sugar and calories. People with cystic fibrosis have high levels of sodium in their sweat and must be extra careful to avoid dehydration.
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