Kids + Heat + Exercise = Danger

Two Recent Deaths Spotlight It; Senay: New Guidelines Should Help

(CBS)  Hot weather isn't stopping kids from playing sports and working out.

But it can be very dangerous, even deadly, as seen in the heat-related deaths of two Florida teens during separate football practices this month.

The Early Show medical correspondent Dr. Emily Senay says there are ways to reduce the risks, as set forth in new guidelines from the National Athletic Trainers' Association.

Senay points out that children generally sweat less than adults, which makes it harder for them to cool down. Kids with a low level of fitness, sick youngsters, or those with a history of dehydration or heat illness may be at higher risk of heat-related problems.

The NATA says parents and coaches must make sure that children exercise slowly, so they can gradually become accustomed to heat and humidity.

The groups says parents should also take steps to recognize and treat dehydration and heat cramps. Dehydration can lead to more serious heat illnesses, such as heat exhaustion and the potentially deadly heat stroke. A certified athletic trainer or other medical professional needs to be on-site during organized sports activities to monitor the health and safety of participants, especially when it's very hot and humid. Kids should have a checkup beforehand to make sure they're fit enough to exercise.

Senay explains that dehydration occurs when body fluids aren't replaced after sweating during exertion. Among the physical symptoms of dehydration are dry mouth, thirst, headache, cramps or dizziness. Other warning signs of dehydration include irritability, crankiness, boredom, disinterest, or excessive fatigue.