Athens Review, Athens, Texas


May 2, 2014

We have a lot to learn about the human body

Athens — The human body is a complex system. The body still baffles doctors and researchers, despite all their medical knowledge.

Here is something to think about. It is hard to grasp just how small the atoms that make up your body are until you take a look at the sheer number of them.

An adult is made up of around 7,000,000,000,000,000,000,000,000,000 (7 octillion) atoms. Who do you think counted those atoms?

There are more interesting facts about the human body you may  or may not know.  I obviously did not know, or I would not have done so much research.

Let's start with the brain.  Did you know the brain operates on the same amount of power as a 10-watt light bulb?

This is true, your brain generates as much energy as a small light bulb, even when you're sleeping. This could be the reason when you get something they say “The light bulb just went off.”

This must not be true for everyone. The human brain cell can hold five times as much information as the Encyclopedia Britannica. I have met people, that may make a good argument for this information being false.

Your brain uses 20-percent of the oxygen that enters your bloodstream. This is what is interesting – the brain only makes up about 2-percent of our body mass, yet consumes more oxygen than any other organ in the body. Everyone take a deep breath to keep you brain healthy.

The brain is much more active at night than during the day. Not my brain. The scientists that know say when you turn off, your brain turns on.

All your high IQ people dream more than those of us with a normal IQ. The reason you don't remember most of your dreams is because they only last two to three seconds.  That’s not enough time to register. You just think they last all night.

While it may seem the brain is the nerve center, it cannot feel pain. The brain is surrounded by loads of tissues, nerves and blood vessels that are plenty receptive to pain.

Your brain is 80-percent water. The brain is squishy, pink and jelly-like. Drink plenty of water to keep that brain of yours hydrated.

Other interesting facts about the human body that I found interesting:

•  The fastest growing nail is on the middle finger;

• Blondes have more hair;

• Fingernails grow nearly four times faster than toe nails;

•  Lifespan of a human hair is three-to-seven years;

• The human heart creates enough pressure to squirt blood 30 feet;

• The acid in your stomach is strong enough to dissolve razor blades;

•  The human body is estimated to have 60,000 miles of blood vessels;

• You can get a new stomach lining every three to four days;

• The surface area of a human lung is equal to a tennis court;

• Women's hearts beat faster than men;

• According to some scientists, your liver has over 500 functions;

•  The aorta is nearly the diameter of a garden hose;

•  Sneezes exceed over 100 mph;

• A cough can travel 60 mph;

• Feet have 500,000 sweat glands, and can produce more than a pint of sweat a day;

•  During your lifetime, you will produce enough saliva to fill two swimming pools.

Did you know the three things pregnant women dream most of during their first trimester are frogs, worms and potted plants? I don't get the potted plant dream.

Your pets are not the only ones shedding. Humans shed about 600,000 particles of skin every hour.  That works out to about 1.5 pounds each year. So the average person will lose around 105 pounds of skin by age 70.

This is something people don't like to talk about. Did you know that most people have eyelash mites? These mites live heads-in in your eyelash follicle (the pores where hair grows), feeding on sebaceous excretion and dead skin cells.

They come out to the skin surface at night to mate and return to the follicle to lay their eggs! The eggs hatch and what do you get? – baby mites!

Our scientific understanding of the human body is certainly much better than it used to be, and people are living longer than ever.

We still don’t know everything about our bodies yet, despite the fact that we live in them every day. There are still mysteries to solve and new things to discover.

Kathi Nailling is a Staff Writer for the Athens Daily Review.


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