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31 years
I am overweight i started workout lately but im facing a problem : after 20 minutes of cardio i over swet my pulse runs faster and i feel dizy , is that normal ?
Aug 24, 2014
2nd opinion

Dr. Rania Mousa General Medicine
If you are being new on treadmill exercise ,meaning that you begin training on a treadmill since a short time ,and if treadmill dizziness continue or even increase after you exit the treadmill,then the cause is your body becomes disoriented because you're still moving, but the ground isn't moving underneath you.
With frequent treadmill sessions, your body likely will acclimate to the differences between the ground and a moving platform.
Until then, reduce your dizziness by exiting the treadmill and holding on to a stable object. Wait a few minutes for your dizziness to subside.

If this is not the issue and you had been for long time training and you had the problem of dizziness then while on the treadmill, your body is moving, but you aren't traveling a distance.
If you feel dizzy or nauseated, this can signal motion sickness.
Motion sickness occurs because your brain is interpreting different signals.
Your inner ear may sense you're in motion, yet your eyes don't interpret motion this can make you feel dizzy.this might be the same symptom as when you travel or have a trip in the boat you may suffer motion sickness .
If your dizziness is related to motion sickness, ensuring your eyes are focused in the right position can help reduce your symptoms. Keep your eyes forward. Don't look down at the feet of other treadmill users, which can make you feel dizzy. Because your feet often follow the action of your eyes, this will help prevent you from tripping or walking on the side of the treadmill belt.

Dizziness may indicate you're exercising at too vigorous a pace on your treadmill. Rate your perceived exertion on a scale of one to 10. If it's over seven, you may be exercising too hard. If you're so out of breath you cannot speak comfortably while exercising, reduce your speed. This will reduce your dizziness and the strain on your heart. However, if you continue to feel dizzy, cease exercising. Stand or sit with your head elevated above your heart.

BUT IF ,you're experiencing dizziness because of a rapid heartbeat while on the treadmill , YOU MUST check with your doctor to recommend recommend an exercise stress test to measure your heart’s functioning

During the stress test, electrodes placed on your chest measure your heart’s functioning. Measuring such vital signs as your heart rate, blood pressure and breathing can help your physician determine whether your dizziness is related to a heart condition or a less serious issue

So DON'T HESITATE if the problem is continuous and not related to the above simple conditions mentioned above .
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