Hydration helps your brain and body work.

Hydration is not just about thirst. It affects your brain, mood, energy, sports performance, and overall health. Teenagers should make water their first choice because it helps them feel better, focus better, and perform better.

What hydration means

Hydration means giving your body enough fluids to work properly. Water is the best everyday drink because it has no sugar, caffeine, or calories.

Why your body needs water

Your body uses water to control temperature, digest food, carry nutrients, protect joints, and remove waste.

Why teens need water

Teenagers need water because their bodies and brains are still growing. People ages 14-18 need about 10 cups of total water per day for girls and about 14 cups for boys.

Total water counts

Those daily amounts include water from drinks and foods, not just plain water.

School and sports

Water supports focus, energy, and activity.

Hydration can affect school performance. When students are dehydrated, it may be harder to focus, think clearly, remember information, and stay alert in class.

Dehydration can cause unclear thinking and mood changes, which can make school and sports harder.

Athletes and active teens need extra water because sweating means losing water and electrolytes.

Teens who play sports, have gym class, walk outside in hot weather, or exercise for a long time need to replace the fluids they lose.

Dehydration

When fluid loss is higher than fluid intake

Dehydration happens when your body loses more fluid than it takes in. This can happen from sweating, exercising, hot weather, sickness, vomiting, diarrhea, or simply not drinking enough during the day.

Dehydration means the body does not have enough water and other fluids to do its normal jobs.

Warning signs

Common signs you may need fluids

Feeling very thirsty
Dry mouth
Dark yellow urine
Peeing less than usual
Tiredness
Dizziness
Dry skin
Headaches

Dark-colored urine, tiredness, and dizziness are warning signs that a person may need more fluids.

Quick check

Use urine color as a simple hydration reminder.

Pale yellow usually means you are drinking enough water. Dark yellow or amber-colored urine can be a sign that you need to drink more, especially after exercise or being outside in the heat.

Pale yellowDark yellowAmber

Drink choices

Water is better than sugary drinks.

Sodas, sweet teas, sports drinks, lemonades, and energy drinks can add a lot of sugar. Replacing sugary drinks with water can help reduce extra calorie intake.

Sports drinks can help during long, intense exercise, but they are not needed for most students every day. For most school days, water is the best choice.

Energy drinks

Energy drinks are not a healthy hydration choice for teens.

Energy drinks are different from sports drinks and can contain high amounts of caffeine or other stimulants.

Kids and teens should avoid drinks with sugar and caffeine, including energy drinks, because they can increase risks such as cavities, unhealthy weight gain, and other health problems over time.

Food helps too

Water-rich foods support hydration.

Fruits and vegetables like watermelon, oranges, strawberries, cucumbers, lettuce, and grapes contain lots of water. Eating these foods can help support hydration along with drinking water.

Healthy choices

Small habits teens can use every day

Carry a reusable water bottle to school.
Drink water when you wake up, at lunch, after gym, and after sports practice.
Choose water instead of soda, sweet tea, or energy drinks.
Drink extra water during hot weather or after sweating.
Eat water-rich fruits and vegetables.
Check your urine color as a quick hydration reminder.

Sources