10 Causes Of Lightheadedness

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By dr okoye okoye
Nov 6, 2018
Medical Expert Medical Expert

Cause #2: Dehydration

If you are not physically fit, sometimes a little exercise is enough to cause lightheadedness. Unfortunately, that is not the root cause of it. Dehydration is the main problem. Normally, exercises are done in a hot environment to induce sweating. As you go through your exercise, you forget to drink your water. Without water, the fluids in your body are also experiencing troubles. Your blood volume goes down, the supply of oxygen to the brain goes down, and your body goes down too.

Sometimes, just a glass of water is enough to do the trick. If, however, your dehydration is not exercise-induced (e.g. fasting, less intake of nutrients, not drinking water on purpose), you should definitely seek professional help immediately.

Lightheadedness

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