However, losing fluids can affect how you feel and may contribute to tiredness, particularly when combined with heat, exercise, or illness.
If you’ve been busy all day and haven’t had much to drink, try having some water and see whether you feel better.
4. You Have a Dry Mouth
A dry or sticky mouth can be another sign that your body needs more fluids.
You may notice that your mouth feels unusually dry or that you are producing less saliva than normal.
Drinking water regularly can help maintain normal moisture levels in your mouth.
5. You Get Headaches
Headaches have countless possible causes, including lack of sleep, stress, hunger, and dehydration.
For some people, not drinking enough fluids may contribute to headache symptoms.
If you develop a headache after spending a long time in the heat or going several hours without drinking, hydration may be one factor worth considering.
6. You’re Exercising or Spending Time in the Heat
Your body loses water through sweat.
That means your fluid needs can increase when you’re exercising, working outdoors, traveling in hot weather, or spending a long time in a warm environment.
During these situations, drink fluids regularly rather than waiting until you’re extremely thirsty.
For prolonged or intense exercise, especially in hot conditions, electrolytes may also become important.
