Jeff Angileri
Jun 25, 2009, 10:48 PM

As temperatures outside continue to heat up, and with more and more kids playing outside, health experts are warning parents to pay attention their kids' hydration.

Kids are at the point, depending on their age, they're playing, they're thirsty, but they're not going to stop and get some water, said registered dietitian Tammy Fumusa, with St. Mary's Hospital.

Fumusa says kids should be getting plenty of water throughout the day -- even if its through other sources like smoothies, fruits, vegetables, and soups.

Kids are more susceptible to dehydration because their bodies are less efficient when it comes to perspiring. That's why it's a good idea to get them drinking water regularly when the temperatures get hot outside. Another good idea is to make their water source portable.

What I do with my kids -- I have a bottle with each of their names on it. I fill it up with ice, and they have to finish it by the end of the day, Fumusa said.

Fumusa says kids get can dehydrated even when they're swimming in pools or running through sprinklers.

There are two simple ways to tell if you're getting enough H20.

Said Fumusa, If you're thirsty, you need water, and if your urine is very dark, you need more water.

A couple other signs to look for when it comes to dehydration -- headache, irritability, sore muscles and dry lips. If it gets really severe, you could even pass out.