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How do you know if you're dehydrated?
What are the symptoms of dehydration?
Can dehydration make you feel unwell?
Dehydration may cause you to feel dizzy and light-headed, especially when you stand up . Orthostatic hypotension is the medical term for a reduction in blood pressure when you stand or sit up ( 14 ).
Jan 2, 2024 · Since the body needs enough fluid to stay healthy, dehydration can make you feel unwell. The symptoms of mild to moderate dehydration in adults and older children include: Thirst: The sensation of thirst is usually one of the first signals that your body needs fluid. Headache: Dehydration can lead to headaches, though the exact mechanisms are ...
- Rebecca Kranz
- hhp_info@health.harvard.edu
Oct 14, 2021 · The problem worsens if you have a fever in addition to diarrhea and vomiting. Excessive sweating. You lose water when you sweat. If you do vigorous activity and don't replace fluids as you go along, you can become dehydrated. Hot, humid weather increases the amount you sweat and the amount of fluid you lose.
- You're Thirsty. This one may seem obvious, but by the time you feel thirsty, you are typically already dehydrated. Luckily, thirst is usually a sign of mild or moderate dehydration, so it's important to drink water soon after you feel thirst coming on so dehydration doesn't become severe.
- Your Urine Is Super Dark. If you aren't already, it can be helpful to start checking your urine color since it can be a good indication of your hydration status.
- You Haven't Gone to the Bathroom in a While. Just like urine color could indicate your hydration status, so can your urine frequency or volume, per MedlinePlus, a resource of the National Institutes of Health.
- You Feel Tired. Feeling fatigued can be another way that dehydration manifests itself. Water helps keep your body working smoothly and your mind sharp, so when you don't have enough of it, your body has to work harder to do daily tasks, resulting in fatigue.
- You have bad breath. Bad breath has many causes, including dehydration. Why? Because saliva has antibacterial properties, and the creation of saliva requires water.
- You feel hungry. First things first: It's very possible that you're actually hungry, in which case, please eat! But there are times when you feel peckish or notice cravings (often for salty foods) because you're really thirsty, Dr. Henry says.
- Your head is pounding. There's no certain explanation for why headaches occur with dehydration, but experts have a few hunches. "A working theory involves pain receptors in the brain that are attached to the meninges (membrane layers that protect your brain and spinal cord)," Dr. Henry says.
- Your focus is off. If you're having trouble focusing, it might be wise to slug some water. "Dehydration can lead to a lack of ability to focus, causing short-term challenges in performing tasks related to motor and visual skills," Dr. Henry says.
Aug 17, 2023 · Dehydration can cause you to feel out of sorts and tired. And when it lasts a long time, it can cause serious health problems. ... You can tell you are dehydrated if you are feeling thirsty, tired ...
Nausea. Muscle cramps. Fatigue. Dizziness, light-headedness. Dry mouth. Constipation. Dehydration can lead to heat exhaustion, in which your body temperature begins to rise. “It can cause a ...
