A human’s normal heart rate is the resting heart rate. In some other cases, the heart rate may raise above the normal or even decrease the normal heart rate. Apparently, some factors have been established to increase the heart rate while other decreases the heart rate. As established from the exercise undertaken, the major factors that increase the heart rate are predominantly the strong emotions that include anxiety, embarrassment, and anger. Additionally, other factors established to increase the heart rate include exercise, taking too many sugars and stimulants, this normally increases body metabolism at the same time the heart rate. In contrast to the aforementioned, the factors that decrease the heart rate include vagal stimulation where the heart is signaled to reduce the heart rate. Particularly after delivery for mothers and sometimes after lifting something very heavy, other factors that reduce the heart rate include medications particularly the sedatives.
Based on research findings, exposure to stress has been established to foster or rather increase the blood pressure in a human’s body. Based on this research, stress fosters an increased blood pressure inside the body. A stressful situation stimulates other events that in essence foster an increase in the blood pressure (Gasperin, et al. 2009). Once subjected to stress, the human body release adrenaline a hormone best known for speeding up the rate of breathing and consequently the heart rate bad increased blood pressure.
Based on research findings, it is established that the nervous system affect the heart rate through the autonomic nervous system (Sympathetic and Parasympathetic) (Gasperin, et al. 2009). Apparently, major organs of the body are predominantly controlled by either the sympathetic or parasympathetic division. In essence, these two divisions work concurrently to alter the heart rate as a way of ensuring normal metabolism inside the body. In effect, the Parasympathetic decreases the blood pressure while the sympathetic division increase the blood pressure in stressful or emergency situations, (flight or flight). When a human being is subjected to a stressful situation, the aforementioned divisions work in concurrence to release hormones that in effect alter the heart rate, but upsetting heart contractions and dilations to achieve a responsive effect.
Upon reading the recommended sources, the thing that surprised me the most is how stress trigger events that eventfully poses one to the risk of hypertension, and myocardial infarction risk. Apparently, stress does not directly foster the aforementioned, but rather trigger factors that cause the same.
Reference
Gasperin, D., Netuveli, G., Dias-da-Costa, J. S., & Pattussi, M. P. (2009). Effect of
Psychological stress on blood pressure increase: a meta-analysis of cohort studies. Cadernos de Saúde Pública, 25(4), 715-726.
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