Wednesday, August 2, 2006

Why Do Men Have Nipples?

Over the years I've managed to collect a geat deal of minutia and factoids I thought you might find interesting.  See if any of these answers a question or two:

WHAT CAUSES ICE CREAM HEADACHE?  Actually, there's a nerve center at the roof and back of the mouth called the sphenopalatine ganglion, and when you eat something icy cold it constricts the blood vessels, causing your pain receptors to overload, sending the excess pain straight to your head. 

DOES EATING CHOCOLATE CAUSE ACNE?  No.

WHY ARE YOU HUNGRY AN HOUR AFTER EATING CHINESE FOOD?  The carbs are the culprits.  All that rice, noodles, they cause the blood sugar level to peak then plummet, making you hungry. 

CAN CARROTS HELP IMPROVE YOUR VISION?  The Roman Emperor Caligula, a heck of a guy, believed carrots were the ultimate aphrodisiac and forced his court to eat a ton at banquets.  Just a little factoid there.  Actually, this started during WW11 when British pilots started shooting down German planes like crazy.  They bragged it was because of all the carrots they ate (remember "Victory Gardens"?  Everyone had one and carrots were a main crop).  The fact is they were right.  Beta-carotene is essential for sight.  The body converts it into vitamin A which is a nice friendly vitamin for all kinds of things.  But as with everything, there's a good side and bad side.  The bad is, too much vitamin A is toxic.  It causes many uwanted side-effects like yellow skin and fatigue.  Best thing?  A multi-vitamin daily.

WHY DOES SPICY FOOD MAKE YOUR NOSE RUN?  (So embarrassing....)  It's Capsaicin.  This chemical stimulates the central nervous system fibers that control fluid in the nasal passages and stomach.  The good side?  Research into Capsaicin is very promising in the treatment of nerve diseases.  Yeah!!!

WHY IS IT BAD TO CRACK YOUR KNUCKLES?  This isn't as harmful as some think.  Unless, of course, you're near someone who is irritated by the sound, then you might experience intense pain in the area where you were punched.  The fact is, popping knuckles does not cause arthritis.  Too much of it causes the ligaments to stretch making it difficult to grasp things.  So what causes that pop sound?  Bubbles bursting in the synovial fluid surrounding the joint.  Interesting, eh? 

WHY DO SOME FOLKS HAVE AN INNIE AND OTHERS HAVE AN OUTIE?  Contrary to most thinking it has nothing to do with where the umbilical cord is cut.  We just put a clip on, cut, and wait for the dried up cord tissue to fall off.  It's all purely random. 

WHY ARE YAWNS CONTAGIOUS?  Since we really don't know, the most common theory is that it's behavioral.  Humans tend to imitate other humans, unconsciously.  Even fish yawn, among many other animals.  I'm starting to yawn just thinking about it ......

CAN YOU LOSE A CONTACT LENS IN THE BACK OF YOUR HEAD?  Oh this is great I love this.  Many people come running into the ER screaming that they've lost their contact in the back of their head.  Most times it's found all folded up behind the eyelid.  But not always; sometimes it's nowhere to be found.  So where is it???  Probably at home on the bathroom floor.  There's no where else for it to go!

WHAT ARE THE STRONGEST AND LONGEST MUSCLES IN THE BODY?  Relative to size, most would say the tongue is the strongest, but it's not.  Wait'll you hear this.  First, the longest is the sartorius, which slants across the thigh onto the knee.  And the strongest are two, actually:  the masseter for chewing, and (get ready) the good old gluteus maximus.     ! ! ! ! !

WHY DO YOUR TEETH CHATTER WHEN YOU'RE COLD?  When the body sinks too far below 98.6 degrees F, it sends a message to the hypothalamus to start warming up.  Shivering is the rapid movement of the muscles to create heat, and teeth chattering is like shivering.

WHY DO YOU LAUGH WHEN TICKLED?  Laughter is a complex process involving muscles and blood pressure.  But scientists and researchers alike know that laughing is a bonding experience, a social act.  Ever see chimps laughing?  Studies show that people are 30 times more likely to laugh in a social setting than when alone (except crazy Aunt Mabel).  Reports also show that laughing may predate human evolution - remember the chimps?  So it's a form of making a social bond.  What about the tickling-lauging connection?  It's a reflexive action.  Scientists don't know exactly how it works because you can't tickle yourself but it seems to involve an element of surprise.  Boo!  Notice how we tend to laugh after someone surprises us?  LOL!

WHAT ARE THOSE LITTLE HALF MOONS IN YOUR NAILS?  They're called lunule and it shows where the hardening process is not yet complete.  Here's some good stuff about nails:

Nails grow .004 inches daily.

Fingernails grow faster than toenails.

Toenails are twice as thick as fingernails.

Nails grow faster in summer than in winter.

Men's nails grow faster than women's - and here's something I've noticed all my life:

The nails on your dominant hand are stronger and tend to grow faster.

OKAY NOW YOU WANT THE BIG ANSWER, RIGHT?  You probably already know most of all this stuff, so: 

Although females have the mammary glands, we ALL start out in the embryonic stage as female.  During develoment, the embryo follows a female pattern, or template, until about 6 weeks when the male sex chromosome kicks in to start developing a male embryo.  Men are thus left with nipples they have no real use for, like ear lobes or the tips of our noses, even the appendix.  These are called vestigial organs and tissue.  In about oh say, 100,000 years, these will start to disappear as we continue to evolve as humans.  Until then, at least there are plenty of nerve endings in the nipple area so they're not entirely useless.  Interesting.

Let me give credit to the book "Why Do Men Have Nipples" where alot more good stuff is found, I'll post more when I get new glasses lol!!     

 

 

 

 

 

 

8 comments:

siennastarr said...

I enjoyed reading those, Luddie!  Thanks for all that info!  Some I already knew, but there were a few I didn't.

I don't know about the evolving part of it.. as I don't believe in the big bang theory or evolution, so I tend to think that men will always have nipples, regardless of whether they need them or not! :)  

Jackie

bobandkate said...

If you take the evolution thing to its extreme, men themselves might disappear in the distant future (LOL!!!). Great list of trivia!!!
Kate.
http://journals.aol.co.uk/bobandkate/AnAnalysisofLife/

princesssaurora said...

We have this book... it is great!  Thanks!

be well,
Dawn

libragem007 said...

wow..very interesting and you even added some humor in it. Thanks for sharing this. I found this entry a very interesting read!
Gem :-)
http://journals.aol.com/libragem007/JournallyYours

queenb8261 said...

Okay, gotcha.  The whole thing. LOL Thanks for sharing!
Barb

stevietwain said...

Wow, what a GREAT entry, and the first I've read of yours!

I found all of that sooo interesting..it was only last week that I was discussing why we yawn after seeing someone else yawn..lol!

Thanks for answering that for me!

Lv Ste
xx
http://journals.aol.co.uk/stevietwain/ThelifeofSte/

queeniemart said...

i LOVE to crack my knuckles and it drives my family insane. LOL

XO lisa

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