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Lightheadedness

life science Maturity 7-9 Next article →

Lightheadedness is a common feeling that can be quite unpleasant. You might feel dizzy or like you might faint. Some people say their head feels weightless. Others feel like the room is spinning or moving. This spinning feeling is called vertigo.

This sensation is very close to pre-syncope. Pre-syncope is the stage right before a person faints. It often happens when vision gets dark or closes in.

Your brain works hard to keep you balanced. It looks at signals from your eyes. It also looks at signals from your inner ears. The nervous system sends more information to the brain too. Balance happens when the brain processes all these signals correctly.

If the signals are wrong, you feel dizzy. This can happen if the signals do not match. It can also happen if the sensory systems do not work right.

Many simple things can cause this feeling. A drop in blood pressure can lower oxygen to the brain. This can happen if you are dehydrated from fever or vomiting. Low blood sugar can also cause it. Some people feel dizzy if they stand up too fast. This is common as people get older.

Other causes include altitude sickness, panic attacks, or anemia. Even the flu or allergies can make you feel this way.

Sometimes, lightheadedness comes from more serious health issues. Heart problems can cause an abnormal heart rhythm. Breathing problems like pulmonary hypertension can also be a cause. A stroke or a heart attack might cause it too.

If these are happening, you might feel chest pain. You might also feel your heart racing. Other signs include changes in vision or loss of speech. Some medicines, like certain antibiotics, can also cause dizziness.

There are many ways to help yourself feel better. You should try drinking plenty of water or other fluids. If you cannot keep fluids down, doctors might use intravenous fluids. This is a liquid given through a tube.

Eating something sugary can also help if blood sugar is low. You can lie down or sit down. Try putting your head between your knees. Avoid bright lights and sudden changes in how you sit or stand. This helps your body stay steady.

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