Risk factors for dehydration

Your child might be vulnerable to dehydration and other heat-related illnesses in a hot or humid environment if he or she:

• Wears clothing or protective gear that contributes to excessive heat retention
• Rarely exercises
• Is overweight or obese
• Is sick or had a recent illness, especially involving diarrhea, vomiting or a fever
• Is taking certain supplements or medications, such as cold medicine
• Has a chronic condition, such as diabetes
• Isn't well-rested