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It's tricky to know when fainting or lightheadedness is a cause for concern—even doctors often feel stumped, which is why Thiruganasambandamoorthy has developed a screening tool that could help predict whether or not a person who has fainted is likely to have an underlying health problem. Below, 9 potential causes.
Causes of lightheadedness may be dehydration, medication side effects, sudden blood pressure drops, low blood sugar, and heart disease or stroke. Even if the lightheadedness does not have a serious cause, it could lead to serious injuries from a fall. And at the worst, the cause may itself be life-threatening," says Dr.
Inflammation of the nerves in your ears also can cause vertigo. This is called vestibular neuritis or labyrinthitis , and it's caused by an infection. Usually, a virus is to blame.
Cause #1: Vertigo. Vertigo may be the reason for lightheadedness if you are older. The reason why older people experience more of this is because cells breakdown as you age. This occurs when there is an underlying problem within your inner ear. Some of the things from your inner ear move inside your brain, thus causing that spinning feeling.
Some of the more common causes of lightheadedness include: Dehydration from a viral infection, from nausea and vomiting, or from any other cause. Using tobacco, alcohol, or illicit drugs. Various prescription drugs. Orthostatic hypotension. Vasovagal episodes. Dysautonomia. Allergic ...
Lightheadedness Causes. Causes Low Blood Pressure: When the blood pressure of a person drops significantly, there is a temporary shortage of blood to the brain, as adequate oxygen-rich blood does not reach the brain. This affects normal functioning of the brain, and hence, the person feels dizzy and lightheaded.