Archive for ‘Nutrition’

June 18, 2010

Weird Facts About the Human Body

While I was wandering around the torrents yesterday, I found one called 100 Weird Facts About the Human Body. I just got a chance to look through it and it’s this cool little 11 page pdf with all kinds of interesting facts. Since I found it so entertaining, I thought I might share a few with everybody.

  1. Nerve impulses to and from the brain travel as fast as 170 mph.
  2. The human brain can hold 5 times as much information as the Encyclopedia Britannica. (Scientists have yet to settle on a definitive amount but the storage capacity of the brain in electronic terms is thought to be between 3 or even 1000 terabytes.)
  3. The brain only makes up about 2% of our body mass, but it uses 20% of the oxygen that enters your bloodstream.
  4. Scientists say the higher your I.Q., the more you dream.
  5. The brain itself does not have pain receptors and cannot feel pain.
  6. 80% of your brain is water.
  7. Every day the average person loses 60-100 strands of hair.
  8. One human hair can support 3.5 oz.
  9. The fastest growing nail is on your middle finger. (It would be too cheesy to even make a joke on that one.)
  10. There are as many hairs per square in. on your body as a chimpanzee, but the majority of the hairs are too fine or light to be seen.
  11. Blondes have more hair. (The average human head has 100,000 hair follicles. Blondes average 146,000, black hair averages 110,000, brown averages 100,000 and redheads only average 86,000.)
  12. You can lose 50% of your hair before it is noticeable to anyone.
  13. The human heart creates enough pressure to squirt blood 30 ft.
  14. The acid in your stomach is strong enough to dissolve razorblades.
  15. The human body is estimated to have 60,000 miles of blood vessels. (To put that in perspective, the distance around the earth is about 25,000 miles.)
  16. You get a new stomach lining every 3 to 4 days. (Due to the strong digestive acid in your stomach we already noted.)
  17. The surface area of a human lung is equal to a tennis court.
  18. Scientists have counted over 500 different liver functions.
  19. You could remove a large part of your internal organs and survive. (It’s possible to survive with the removal of the stomach, the spleen, 75% of the liver, 80% of the intestines, one kidney, one lung, virtually every organ from the pelvic and groin area.)
  20. Sneezes regularly exceed 100 mph.
  21. Women blink twice as many times as men do.
  22. A full bladder is roughly the size of a softball.
  23. Feet have 500,000 sweat glands and can produce more than a pint of sweat a day.
  24. During your lifetime, you will produce enough saliva to fill 2 swimming pools.
  25. The average person farts 14 times a day.
  26. On any given day, sexual intercourse takes place 120 million times on earth. (That’s about 4% of the world’s population.)
  27. Your teeth start growing 6 months before you are born. (In the 2nd trimester)
  28. Babies are, pound for pound, stronger than an ox.
  29. One out of every 2,000 newborn infants has a tooth when they’re born.
  30. Every human spent about a half and hour as a single cell.
  31. Most men have erections every hour to hour and a half during sleep.
  32. After eating too much , your hearing is less sharp. (Keep in mind if you’re heading to a concert.)
  33. Only 1/3 of the human race has 20/20 vision.
  34. If saliva cannot dissolve something, you cannot taste it. (If you don’t believe it, dry off your tongue before you taste something.)
  35. Women are born better smellers than men and remain so throughout life. (There is also an unfortunate 2% of the population with no sense of smell at all.)
  36. Your nose can remember 50,000 different scents.
  37. Everyone has a unique smell, except for identical twins.
  38. The ashes of a cremated person average about 9 pounds.
  39. Nails and hair do not continue to grow after we die. (They appear longer when we die because the skin dehydrates and pulls back from the nail beds and scalp.)
  40. By the age of 60, most people will have lost about half of their taste buds.
  41. Your eyes are always the same size from birth but your nose and ears never stop growing.
  42. Monday is the day of the week when the risk of heart attack is greatest. (A 10 year study in Scotland found that 20% more people die of heart attacks on Mondays.)
  43. Humans can make do longer without food than sleep.
  44. A human head remains conscious for about 15 to 20 seconds after it has been decapitated.
  45. We are about 1 cm taller in the morning than in the evening. (The cartilage between our bones gets compressed by standing, sitting and other daily activities, making us a tiny bit shorter at the end of the day.)
  46. The strongest muscle in the human body is the tongue.
  47. You use 200 muscles to take one step.
  48. The tooth is the only part of the human body that can’t repair itself.
  49. The feet account for 1/4 of all the human body’s bones. (52 bones)
  50. About 32 million bacteria call every inch of your skin home.
  51. 300 million cells die in the human body every minute.
  52. Every day an adult body produces 300 billion new cells.
  53. Every tongue print is unique.
  54. Your body has enough iron in it to make a nail 3 inches long.
  55. The colder the room you sleep in, the better the chances are that you’ll have a bad dream.
  56. Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil.
  57. Right-handed people live, on average, nine years longer than left-handed people do.
  58. Koalas and primates are the only animals with unique fingerprints.

That was a lot of weird shit. I love finding cool little stuff like that. It’s the main reason I wander the net at random. I need to go through the backs I have saved on the hard drive. I’m betting there’s quite a bit of cool stuff like that I’ve forgotten I had.

June 2, 2010

Nasty Virus Multipication

Proteins also defend the body against disease, A virus — whether it is one that causes flu, smallpox, measles, or the common cold — enters the cells and multiplies there. One virus may produce a 100 replicas of itself within an hour or so. Each replica can then burst out and invade 100 different cells, soon yielding 10,000 virus particles, which invade 10.000 cells. Left free to do their worst, they will soon overwhelm the body with diseases.

–Understanding Nutrition , 11th Ed,; Ellie Whitney and Sharon Rady Rolfes

June 1, 2010

Another Interesting Nutrition Fact

“The human body contains and estimated 30,000 different kinds of proteins. Of these, about 3,000 have been studied, although with the recent surge in knowledge gained from sequencing the human genome, this number is growing rapidly.”

Understanding Nutrition, 11th Ed., pg. 187; Ellie Whitney and Sharon Rady Rolfes

May 31, 2010

Interesting Nutrition Fact

Switched study subjects today. I get to work on my nutrition class. I have a couple chapters to read before Wednesday, and I have to make food diary and a couple other weird projects. Cool stuff to post later. Anyways, I was reading in the textbook and found out an interesting nutrition fact I had never known.

“”Good cholesterol” is not a type of cholesterol found in foods, but it refers to the way the body transports cholesterol in the blood….. Sterols [compounds containing a four ring carbon structure with any of a variety of side chains attached] other than cholesterol are naturally found in all plants. Being structurally similar to cholesterol, these plant sterols interfere with cholesterol absorption, thus lowering blood cholesterol levels.”

— Understanding Nutrition, 11th Ed., pg. 146; Ellie Whitney and Sharon Rady Rolfes