What are signs of dehydration that could impair performance and increase injury risk?

• A. Thirst, dark urine, dizziness, headache, fatigue, dry mouth; monitor fluid intake and urine color.
• B. Sweating, improved performance
• C. Hunger only
• D. None of the above

Answer: (A)

Recognizing dehydration signs is key because even modest fluid loss can stall performance and raise injury risk. When dehydrated, plasma volume falls, making it harder for the body to circulate heat and oxygen; the heart works harder, effort feels tougher, and body temperature can climb. This combination can dull thinking, slow reaction time, and impair coordination, increasing the chance of slips, strains, or cramps.

Thirst is a signal, but it often lags behind actual fluid loss. Dark urine indicates concentrated urine from insufficient hydration, while dizziness and headache show reduced blood flow to the brain. Fatigue reflects the overall strain on metabolism and thermoregulation, and a dry mouth is another practical cue. Monitoring fluid intake and urine color provides a simple way to prevent progressing to more severe dehydration and the related performance decline and injury risk.