Any amount of strenuous activity like exercise, running, sex, climbing up a flight of stairs, lifting a heavy load etc can cause the heart-beat to run faster than normal. The fast beating of the heart is dependent on the body's need for oxygen rich blood. The sino-atrial node (SA node), located in the right atrium … Read more

The reasons other than exercise that can get the heart rate to increase are stress, excitement, anxiety, anger or rage, fear etc. These are emotional states that result in the release of adrenalin into the blood stream and get the heart beating faster. For the mind it is in these conditions that the body is … Read more