Title What is baseballâs âmodern eraâ? The start of the 20th century might not seem particularly modernâafter all, there were only 45 states in the Union, hardly anyone owned a car (the Model T didnât debut until 1908) and William McKinley, a Civil War vet, occupied the White House.
Causes. Exercise is a common cause of rapid heart rate. Your heart rate should elevate during exercise, but it may be a problem if your heart rate remains elevated for more than 10 minutes after you finish your workout. Dehydration can also cause a faster heart rate.xercise is a common cause of rapid heart rate. Your heart rate should elevate during exercise, but it may be a problem if your heart rate remains elevated for more than 10 minutes after you finish your workout.
Babies have a faster heart rate than adults because they are smaller. Typically, small mammals have much faster heart rates than larger mammals. For example, adult mice have an average resting heart rate of around 500 bmp, adult males around 70 bmp and adult elephants around 28 bmp.The reason is because the the smaller the animal (or person), the smaller the heart and the more work it has to do to maintain homeostasis in the body.or example, adult mice have an average resting heart rate of around 500 bmp, adult males around 70 bmp and adult elephants around 28 bmp.