Varies: There is no specific dangerous heart rate during exercise. How fast your heart beats with exercise depends on a number of factors, especially your conditioning. If you are healthy, a heart reate in the 170's or even higher may be ok and tolerated.
Motion sickness caused by video games, sometimes called simulator sickness, is caused when there is a disconnect between what your eyes are seeing and what your body is feeling.
It's rare in children younger than 2.Motion sickness is sometimes called airsickness, seasickness, or carsickness.What are the symptoms?Motion sickness can cause:A general feeling that you're ill.Nausea.Vomiting.Headache.Sweating.Symptoms will usually go away soon after the motion stops.What causes motion sickness?You get motion sickness when one part of your balance-sensing system (your inner ear, eyes, and sensory nerves) senses that your body is moving, but the other parts don't.