Question

1. Our heartbeat increases when we are frightened. Give reason???​

Answer 1

Answer:

While the adrenaline is pumping through our blood, so are the fat and sugar. That fat and sugar make our bronchi open wider causing heart beat and breathing rate to accelerate. That is why our heart beats faster when we get frightened.

Explanation:

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Answer 2

Answer:

When you get nervous your brain tells your heart to push more blood, the faster your heart races, the faster it can get more blood and oxygen to your muscles. Think about it like you are in dangerous situation, you have been chased by a predator, you need to escape, in this state your muscles need power to react and this is when your brain announces alert to your whole body.

When you get nervous your brain tells your heart to push more blood, the faster your heart races, the faster it can get more blood and oxygen to your muscles. Think about it like you are in dangerous situation, you have been chased by a predator, you need to escape, in this state your muscles need power to react and this is when your brain announces alert to your whole body.When you are in restless state such as anxiety, fear, or nervousness, your brain release a chemical named “adrenaline” which it speeds up your breathes and heart rate, make your muscle ready to react in this case.

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