The human body is an incredibly complex
and intricate system and it still baffles
researchers regularly despite thousands of
years of medical knowledge. As a result, it
shouldn’t be a surprise that even body parts
we deal with everyday have unexpected
facts and explanations behind them. Here
are 40 wacky facts about the human body:
1. The brain is more active at night than
during the day. Scientists don’t know yet
why this is.
2. The higher your IQ, the more you dream.
3. Facial hair grows faster than any other
hair on the body.
4. The nail on the middle finger grows faster
than the other fingernails.
5. Fingernails grow nearly four times faster
than toe nails.
6. The lifespan of a human hair is 3 to 7
years on average.
7. The acid in your stomach is strong
enough to dissolve zinc. It doesn’t destroy
the stomach because because the stomach
walls constantly renews itself.
8. Women’s hearts beat faster than men’s.
9. Women blink twice as many times as men
do.
10. Women are born better smellers than
men and remain better smellers over life.
11. Men burn fat faster than women by a
rate of about 50 calories a day.
12. Men get hiccups more often than
women.
13. A man has approximately 6.8 litres of
blood in the body while women have
approximately 5 litres.
14. The largest cell in the body is the female
egg and the smallest is the male sperm.
15. During your lifetime, you will produce
enough saliva to fill two swimming pools.
16. Babies are always born with blue eyes.
The melanin in their eyes needs time to be
fully deposited or to be darkened by
ultraviolet light to reveal the baby’s true eye
color.
17. Men have erections every hour to hour
and a half during sleep. This is because the
combination of blood circulation and
testerone production can cause erections
during sleep and are a necessary part of
REM sleep.
18. After eating too much, your hearing is
less sharp.
19. If your saliva cannot dissolve or mix with
food, you will not be able to taste that food
(try tasting something after drying off your
tongue)
20. Noise causes the pupils of your eyes to
dilate. Even very small noises can do this.
21. Everyone has a unique smell, unique
finger print and unique tongue print.
22. By age 60, most people will have lost
half their taste buds.
23. Your eyes remain the same size after
birth but your nose and ears never stop
growing.
24. A simple, moderately severe sunburn
burns the blood vessels extensively.
25. We are about 1cm taller in the mornings
than in the evenings.
26. The strongest muscle in the body is the
human tongue.
27. The hardest bone in the human body is
the jaw bone.
28. The hands and feet contains almost half
of the total bones in the human body.
29. About 32 million bacteria call every inch
of your skin home, but they are mostly
harmless and some of them are even
helpful.
30. Humans shed and regrow outer skin
every 27 days.
31. Three hundred million cells die in the
human body every minute and everyday and
adult produces 300 billion new cells.
32. The colder the room you sleep, the
higher the chances are that you would get a
nightmare.
33. Humans are the only species that
produce emotional tears.
34. All babies are color blind at birth, they
see only black and white.
35. The only part of your body that has no
blood supply is the cornea in the eye. It gets
its oxygen directly from air.
36. A normal human being can survive 20
days without eating but can survive only 2
days without drinking.
37. It is impossible to kill yourself by choking
yourself with your hands.
38. Everybody has one strong eye and one
weak eye.
39. Your skeleton keeps renewing itself
every ten years which means that every ten
years you get a new skeleton.
40. The human feet have 500,000 sweat
glands and can produce more than a pint of
sweat a day.
source: http//www.more.ng/lists/40-wacky-facts-about-human-body-you-didint-know/4