Sweet Candy Lab Report

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The Immediate Effects of Ingesting Sour Versus Sweet Candy on the Heart

Introduction In this particular study we observed the immediate effect that sweet candy (Skittles) versus sour candy (sour SweetTarts) has on heart rate and blood pressure upon ingestion and the time that was required for these statistics to return to basal measurements. This study does not infer the long term effects that these treatments have on the heart but can be considered a baseline for future exploration of these effects. The rate and blood pressure of the human heart varies based upon several outside and internal sources. Specifically, the ingestion of any materials will have an immediate and altering effect on the heart based upon its composition (DiNicolantonio and Lucan 2014). How the ingested substance alters the heart is based upon the molecules it is composed of as well as the amount ingested. There are five categories of “taste” that the human tongue detects: sugary, tart, saline, bitter, and the flavor of glutamates known as umami. These “tastes” lead to specific physiological responses—including varying heart rate and blood pressure (Iwata et al. 2014) For example, it is a well known fact that glucose (sugar) can improve “mental effort” while …show more content…

The independent variables were the two treatments (group one—sweet, group two—sour) given to half of the class each. The dependent variables were the systolic blood pressure, the diastolic blood pressure, and the heart rate. The standardized variables were the room in which the experiment occurred—including temperature, humidity, etc., the equipment used such as the same kind of sphygmomanometer, and the time that each measurement was taken—30 seconds after chewing the designated candy, followed by another measurement at 2, 4, 6, 8, and 10 minutes intervals or until the measured rates retuned to

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