1. Tongue Print: Don't stick out your tongue if you want to hide
your identity. Similar to fingerprints, everyone also has a unique tongue
print!
2. Shedding: Your pet isn't
the only one in the house with a shedding problem. 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.
3. Bone Count: An adult has
fewer bones than a baby. We start off life with 350 bones, but because bones
fuse together during growth, we end up with only 206 as adults.
4. New Stomach: Did you know
that you get a new stomach lining every three to four days? If you didn't, the strong
acids your stomach uses to digest food would also digest your stomach.
5. Scent Remembering: Your
nose is not as sensitive as a dog's, but it can remember 50,000 different
scents
6. Long Intestines: The small
intestine is about four times as long as the average adult is tall. If it
weren't looped back and forth upon itself, its length of 18 to 23 feet wouldn't
fit into the abdominal cavity, making things rather messy.
7. Bacteria: This will really
make your skin crawl: Every square inch of skin on the human body has about 32
million bacteria on it, but fortunately, the vast majority of them are
harmless.
8. Source of Body Odor: The
source of smelly feet, like smelly armpits, is sweat. And people sweat buckets
from their feet. A pair of feet have 500,000 sweat glands and can produce more
than a pint of sweat a day.
9. Sneeze Speed: The air from
a human sneeze can travel at speeds of 100 miles per hour or more another good
reason to cover your nose and mouth when you sneeze or duck when you hear
one coming your way.
10. Blood Distance: Blood has
a long road to travel: Laid end to end, there are about 60,000 miles of blood
vessels in the human body. And the hard-working heart pumps about 2,000 gallons
of blood through those vessels every day.
11. Saliva Quantity: You may
not want to swim in your spit, but if you saved it all up, you could. In a
lifetime, the average person produces about 25,000 quarts of saliva enough
to fill two swimming pools!
12. Snore Loudness: By 60
years of age, 60-percent of men and 40-percent of women will snore. But the
sound of a snore can seem deafening. While snores average around 60 decibels,
the noise level of normal speech, they can reach more than 80 decibels. Eighty
decibels is as loud as the sound of a pneumatic drill breaking up concrete.
Noise levels over 85 decibels are considered hazardous to the human ear.
13. Hair Color and Count: Blondes
may or may not have more fun, but they definitely have more hair. Hair color
helps determine how dense the hair on your head is, and blondes (only natural
ones, of course), top the list. The average human head has 100,000 hair
follicles, each of which is capable of producing 20 individual hairs during a
person's lifetime. Blondes average 146,000 follicles. People with black hair
tend to have about 110,000 follicles, while those with brown hair are right on
target with 100,000 follicles. Redheads have the least dense hair, averaging
about 86,000 follicles
14. Nail Growth: If you're clipping
your fingernails more often than your toenails that are only natural. The nails
that get the most exposure and are used most frequently grow the fastest.
Fingernails grow fastest on the hand that you write with and on the longest
fingers. On average, nails grow about one-tenth of an inch each month.
15. Head Weight: No wonder
babies have such a hard time holding up their heads: The human head is
one-quarter of our total length at birth but only one-eighth of our total
length by the time we reach adulthood.
16. Need for Sleep: If you say
that you're dying to get a good night's sleep, you could mean that literally.
You can go without eating for weeks without succumbing, but eleven days is tops
for going without sleep. After eleven days, you'll be asleep forever!
