Since adults are bigger and taller than children, there is more distance to fall and cause a closed head injury. When rollerblading, always wear elbow, wrist and knee pads along with a helmet. Many people spend their free time in athletic endeavors, either as competitive athletes or weekend amateurs. Whatever the case, it's important to maintain your fluid intake to avoid side effects of weakness, dehydration and heat exhaustion. If your urinate isn't clear and frequent, you need to drink more fluids.
Water is the best fluid to quench a thirst.
If you are experiencing vomiting and diarrhea, you may be losing too much potassium. Drink a combination of water and sports drinks to maintain your potassium and sodium intake. For athletes who are curious about their fluid loss, weigh yourself before and after your activity. Approximately 2 cups of sweat equals one pound. You shouldn't lose more than 2 pounds of sweat during a work out.