Where do i go to on my computer to write a letter and then print it out. Sorry but i'm only starting recently to understand some things about my computer so i'm asking.here do i go to on my computer to write a letter and then print it out. Sorry but i'm only starting recently to understand some things about my computer so i'm asking.
A scientist by the name of Francis Arthur Bainbridge reported this reflex in 1915 when he was experimenting on dogs. Bainbridge found that infusing blood or saline into the animal increased heart rate. This phenomenon occurred even if arterial blood pressure did not increase.
A normal heart rate-about 60 to 100 beats per minute. Your heart rate can increase beyond 100 beats per minute if your body needs more blood, such as during strenuous exercise. Some athletes may have normal heart rates below 60 beats per minute because their hearts are very efficient and don't need to beat as fast.