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Question Video: Identifying the Effects of Coffee on the Heart and Nervous System Science

Mia drinks a cup of coffee. What effect will the coffee have on her heart rate? Fill in the blank to explain your answer: Coffee _ the nervous system

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Video Transcript

Mia drinks a cup of coffee. What effect will the coffee have on her heart rate? Fill in the blank to explain your answer. Coffee what the nervous system.

We will start by answering part one of the question: what effect will the coffee have on her heart rate? So, how does coffee affect heart rate? Coffee contains a chemical called caffeine, which affects the body in a number of ways. Caffeine is a natural stimulant, which means that it raises levels of activity in the body and makes things work faster than normal. Stimulants like caffeine stimulate the brain, the nervous system, and the heart. The caffeine in coffee stimulates the heart by making it beat faster than normal, causing an increase in heart rate.

So, what effect will Mia’s cup of coffee have on her heart rate? It will increase it.

Now that we have answered part one, let’s move on to answering part two, which asks us to fill in the blank to explain why coffee increases heart rate. As we discussed earlier, the caffeine in coffee stimulates the nervous system, making it more active than normal. The stimulation of the nervous system in turn stimulates the heart, causing it to beat faster. So, the missing word is stimulates. Coffee stimulates the nervous system.

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