An MRI is needed when doctors think there is inflammation, a tumor, or something medically wrong with the brain that we can't see on the outside.
It isn't heart healthy. That's something that's not true.
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To check your pulse at your wrist, place two fingers between the bone and the tendon over your radial artery — which is located on the thumb side of your wrist. When you feel your pulse, count the number of beats in 15 seconds. Multiply this number by four to calculate your beats per minute.
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Just be friendly and control yourself.