Feeling dizzy occasionally can happen for many reasons.
Standing up too quickly, dehydration, overheating, low blood sugar, medication effects, and other factors can cause temporary lightheadedness.
But unexplained fainting or repeated episodes of severe dizziness should not simply be ignored.
The heart plays a major role in maintaining blood flow to the brain.
If the heart rate becomes extremely
slow, extremely fast, or irregular, blood flow to the brain can sometimes temporarily decrease.
This can cause dizziness or fainting.
Fainting during physical activity is particularly important to discuss with a healthcare professional because it can sometimes be associated with an underlying cardiovascular problem.
Fainting Is Different From Ordinary Dizziness
A person who briefly feels lightheaded after standing up may have a relatively simple explanation.
Actually losing consciousness is different.
If someone suddenly collapses or becomes unresponsive, the situation should be treated seriously.
If the person is not breathing normally or cannot be awakened, emergency medical assistance is required immediately.
7. Nausea, Sweating, or Unusual Discomfort
