Human Body: Pushing The Limits

user-pic
Vote 0 Votes
human body discovery.jpg
You're walking alone late at night and you feel like someone is watching you. You are approaching a long stretch of road with no visible light and as soon as you step into the shadows SMACK! the sound of someone grabbing your shoulder. You're heart starts to race, you have an unbelievable amount of energy, but its just your friend scaring you. You have encountered an adrenaline rush multiple times before, but how and why?
adrenal_gland.jpg

Psychologists sometimes call the drenal glands the emergency centers of the body. As you can see above they sit just above the kidneys and produce adrenaline and cortisol. As you've probably experienced, adrenaline boosts energy production while still trying to conserve as much energy as possible while your muscles are busy smacking your friend for scaring you. Adrenaline actually does more than you would think.

Including:
-contraction of our heart muscle and constriction of our blood vessel to provide more blood to the body
-opening the tiny airways to the lungs to allow inhalation of more air
-breakdown of fat into glucose to energize our muscles
AND
-opens the pupils (dilates) of our eyes to enable better sight during emergencies!

DilatedPupil-1jc1vls.jpg
All of this together allows people to perform amazing acts of heroism in crisis situations (but are still constrained by physical limitations obviously). One mother was filled with adrenaline when her child was trapped under a heavy car, enough even to lift the end of the car some say up to four inches off the ground!

Chevy-Camaro-Bumblebee.jpg
You probably recognize this car from the movie "Transformers". Well as noted in Psychology Today a man saw one of these run over a child biking, trapping him under the nearly 3000 pound car. Tom Boyle Jr. ran to the car when it came to a stop latched his hands under the car and lifted until it was far enough off the ground for someone to pull the child out. Here is some good news though...happy things can cause adrenaline rushes too! SEE scroll down! skydiving1.jpg

This shows how impressive the human body is and how it deals with intense situations.

5 Comments

| Leave a comment

This is a really interesting entry. I've seen a couple of shows on the Discovery Channel where similar events have occurred and people get stuck under boulders with no one to help them and they push it off. It's really incredible what our body can. I'm wondering if you found any information on if adrenalin can sometimes hurt people. I know on the Discover Channel, the person that lifted the boulder off of them ended up tearing a ligament and didn't realize it until her body calmed down and she felt an incredible amount of pain. It's something to maybe look into. Otherwise, great entry.

I've often wondered how much our body can handle when we experience our adrenaline rushes. Such as does it have to take a traumatic experience or could it just be from something really exciting? And does how big the adrenaline rush is depend on how excited you are? I'm sure it does, but what exactly causes your adrenaline glands to act up? It's very interesting that adrenaline does all those things to try to help us in our situations. I'm also curious as to if we can injure ourselves or put ourselves in danger trying to save someone else from danger because of our adrenaline.

This article made it very clear on what causes adrenaline and how it affect a person in a scary situation which is helpful. What makes it so helpful is that illustrations that are provided to make a point more clear. To sum it up this article is very well organized and written.

Nice concept for a blog post. It really is quite amazing what the human body can do when it senses an emergency situation, even if it's only a cruel joke from a friend. You do a great job noting the things adrenaline does to help the human body, but as paush001 noted, what negative effects does adrenaline have on our bodies? From personal experience, I can attest to how a rush of adrenaline can mask pain, which can sometimes cause further issues. After crashing my Jeep Wrangler Rubicon (don't ask about details haha), one of first things the officer told me was to be conscious of how I would feel after the adrenaline started to wear off. Although I was fine at the scene and didn't need medical attention, he reminded me that my body was undergoing a state of pure adrenaline rush, which could potentially be masking any pain I was actually experiencing due to the impact of my crash. He recommended that if I began to have pain as time passed, to seek medical attention right away.

Also, as a member of my high school dance team, I experienced a injury to my back. At competitions, my adrenaline masked the severe pain of my injury. Often times, after a short, two minute routine, I would walk off the court and experience an extreme sense of pain once in the locker room. As my adrenaline wore off, my body became increasingly aware of my injury and how my recent performance had re-injured the vertebrae in my back.

Basically, adrenaline is something that helps the human body react in emergency situations. But if not careful, adrenaline can also mask important pain-related messages from reaching the brain until further damage has already occurred.

Good post. I've always wondered how adrenaline kicks in the system and what it can enable our bodies to do. It's amazing how adrenaline can alter our mind set in some situations. One example that first came to mind was the movie 127 Hours. Aron (James Franco) gets trapped in a canyon in Utah because a large boulder falls on his arm. As he starts running out of resources and on the brink of death, his adrenaline kicks in and allows him to cut his arm off with a dull pocket knife. I would never imagine myself being able to do this, but if I were in that situation and I had to decide between life or death, I would probably think differently.

Leave a comment

About this Entry

This page contains a single entry by bodd0021 published on February 5, 2012 10:36 PM.

Stem Cells and the Future of Alzheimer's Disease was the previous entry in this blog.

A Subject Hidden In Darkness is the next entry in this blog.

Find recent content on the main index or look in the archives to find all content.