Hypothesis

 If we test how the speed of the car affects the adrenaline produced in a human, then we will infer that as the speed increases, the adrenaline matches the increase, because of the thrill caused by the increased speed, and how humans are naturally attracted to going fast.

If we increase the speed of the car, then we will infer that as the speed increases, the adrenaline will correspond with the change of speed and also increase, because of the thrill and excitement caused by the enlargement of the speed an average human would be attracted to moving quicker.

If the speed of a car increases, then we will infer that as the speed increases, the human body will correspond to the change in speed and also produce more adrenaline, because of the thrill and excitement caused by the enlargement of the speed  an average human would be attracted to being quicker. 

If the speed of a car increase, then we will infer that the driver’s body will correspond to the enlargement of the the speed and also produce more adrenaline, because of the thrill and excitement caused by the change of speed in the various trials, the human body would be attracted to going faster and the body will show more signs of its abilities being heightened, such as breathing heavier, nerves popping out, heart beating faster and etc…

Background information:

To understand how speed can affect adrenaline, we first need to understand how adrenaline works. The hormone adrenaline aids in rapid reaction in thrilling, stressful, or dangerous circumstances. 'Fight-or-flight reaction' is the term used to describe this. Your adrenal glands, which are situated directly above the kidneys, receive chemical signals from your brain in this kind of circumstance instructing them to begin releasing the hormone into the blood. The effects of the adrenaline will take effect in a matter of minutes.
 

People have always been interested in how making things faster and convenient will benefit the human race. From the start our goal was to make inventions that use less time to do work and different actions, though this can be useful, it can also be dangerous. Using this experiment we have the goal of finding how speed and adrenaline link and can potentially be dangerous.

Adrenaline and speed connect in the way that adrenaline is a human reaction to a dangerous situation, when the human brain is faced which an unusual situation, such as extreme acceleration or a high speeds, the brain itself informs the adrenal glands (They produce hormones in response to stress and other essential functions) to produce adrenaline into the system of the body. Due to the rapid production of adrenaline your heart begins to beat faster causing more blood to be produced and transported to your muscles. The adrenaline produced by the speed gives a heightened sense to all the human aspects, but also it causes a thrill to go even faster and for a longer duration.

Variables:

Independent: Speed of the Car

Dependent: Heart rate/ breathing/ sweat/ body changes

Controlled: Driver of the car, Type of car, type of road, Distance traveled

Variables:

Independent: Speed of the Car

Dependent: Heart rate/ breathing/ sweat/ body changes

Controlled: Driver of the car, Type of car, type of road, Distance traveled 

Observation:

We observed that in the first trial the driver had a lower heart beat than the other trials, but the driver’s heart was still beating faster than when he was not driving at all (normal bpm was 72 and after the first trial it was 93). Everything else about the driver seemed the same to our naked eyes, no sweat was produced, he was breathing normally, and it felt like no change happened to him at all. In the second trial where the speed was 70 kilometers per hour, it appeared that the driver's heartbeat increased (bpm was 126) in speed from what it was from the trial beforehand. Also, the driver seemed more active and filled with more joy, when the trial ended (he was smiling, talking with a louder and more thrilled tone, whereas in the first trial it seemed the speed unfazed him and he conversed casually.) The driver didn’t show any signs of sweat and veins popping out, but we did notice a little heavier breath, but nothing too much. On the final trial where the speed was 120 kilometers an hour, the driver's heartbeat increased marginally to 154 bpm compared to the other trials this one had the biggest jump in bpm. When we checked on the driver for any changes on their body we noticed that there still wasn’t any sweat, but we did notice that he was breathing a bit heavier and we saw clear veins popping out of his arms showing more blood being pumped. Also, the driver seemed even more energetic from the second trial. His eyes felt like they were more locked into us when we were talking with him but the tone didn’t switch much, but we did notice a change of pitch, the driver's voice was lightened/higher than the low voice from before.

Analysis: 

Conclusion:

To conclude this experiment we learned that the drivers heart rate corresponds to the speed increase of the vehicle, which ultimately leads to more adrenaline to be produced and the driver to be more energetic after the trials. The driver did not produce any sweat after the trials, but did have more veins popping out and and panted a bit with more attention to us while we were talking to him, proving that the adrenaline which was produced heightened his senses. Also, we were correct in our hypothesis that the increased speed would correspond with the production of the adrenaline and it would improve the individual's senses.

Application: 

We can really benefit by using this knowledge from this experiment, because now we know that when we are driving that adrenaline is produced which gets us more thrilled and excited to speed and if we speed that produces even more which creates an endless cycle of adrenaline, which is not safe at all. The adrenaline might heighten our senses when speeding, but that still is a danger to our life, so this knowledge could have the same value of many lives being saved.

Sources of Error: We did not have many errors in our experiment, as it was quite fully controlled, but some main errors that might of altered the results of our experiment are: 

Traffic- The traffic might have caused the driver to be a little more pressured and frightened, which might have produced more adrenaline and more bpm.

Snow- The snow, similar to traffic, might have caused the driver to be more careful, frightened, and pressured, leading to more production of adrenaline and more bpm.

References

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Acknowledgements:

We would like to thank Abhijit Khaira (Shivraj’s older brother) for being the driver in this experiment (One of the reasons why this experiment was possible).