Dehydration What is it? When the body loses too much water or fluids. What causes it? Heat exposure Too much exercise Vomiting Diarrhea Decreased fluid intake Signs/Symptoms: Weakness Thirst or dry mouth Dizziness Confusion Less urination than usual Plan of Action: Contact a healthcare provider if you suspect someone is dehydrated The best first aid for dehydration is prevention: encourage everyone to drink enough to stay hydrated. If dehydration isn't addressed early enough, it can lead to life threatening medical conditions such as shock.