What are two common signs of dehydration in adults?

• A. Thirst and dark-colored urine.
• B. Frequent clear urine.
• C. Increased appetite.
• D. Sleepiness only.

Answer: (A)

Dehydration in adults most commonly shows up as thirst and dark-colored urine. Thirst is the body's signal to drink more water; when fluids are low, the brain prompts you to drink. Urine color reflects hydration: with less water, the kidneys conserve fluid and urine becomes more concentrated and darker. Keep in mind that thirst isn’t always reliable for everyone, especially older adults, so noticing darker urine can be a helpful practical check. The other options don’t fit dehydration as well: frequent clear urine suggests good hydration, increased appetite isn’t a dehydration sign, and sleepiness alone isn’t a typical early indicator.