16 Unusual Facts about the Human Body

human body

People will often say they know something “like the back of their hand” to indicate that they’re familiar with it top to bottom. But how much do you actually know about your own body? I”ve got 16 tidbits that may surprise you.Check this out…..

16 Unusual Facts about the Human Body

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

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 has 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’s 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!

-howstuffworks.com
-CONTRIBUTING WRITERS: Helen Davies, Marjorie Dorfman, Mary Fons, Deborah Hawkins, Martin Hintz, Linnea Lundgren, David Priess, Julia Clark Robinson, Paul Seaburn, Heidi Stevens and Steve Theunissen

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Having a big bum, hips and thighs ‘is healthy’

Carrying extra weight on your hips, bum and thighs is good for your health, protecting against heart and metabolic problems, UK experts have said.

Hip fat mops up harmful fatty acids and contains an anti-inflammatory agent that stops arteries clogging, they say.

Big behinds are preferable to extra fat around the waistline, which gives no such protection, the Oxford team said.

Science could look to deliberately increase hip fat, they told the International Journal of Obesity.

And in the future, doctors might prescribe ways to redistribute body fat to the hips to protect against cardiovascular and metabolic diseases such as diabetes.

The researchers said having too little fat around the hips can lead to serious metabolic problems, as occurs in Cushing’s syndrome.

Shape not weight

Evidence shows that fat around the thighs and backside is harder to shift than fat around the waist.

Although this may sound undesirable, it is actually beneficial because when fat is broken down quickly it releases a lot of cytokines which trigger inflammation in the body, say experts.

These cytokines have been linked to cardiovascular disease, insulin resistance and diabetes.

Fat around the hips and thighs is good for you but around the tummy is bad
Lead researcher Dr Konstantinos Manolopoulos

The slower burning hip fat also makes more of the hormone adiponectin that protects the arteries and promotes better blood sugar control and fat burning.

In comparison, carrying excess fat around the stomach, being “apple shaped”, raises the risk of diabetes and heart disease.

Lead researcher Dr Konstantinos Manolopoulos, of Oxford University, said: “It is shape that matters and where the fat gathers.

“Fat around the hips and thighs is good for you but around the tummy is bad.”

He said in an ideal world, the more fat around the thighs the better – as long as the tummy stays slim.

“Unfortunately, you tend not to get one without the other,” he said.

Fotini Rozakeas of the British Heart Foundation said: “This research helps us better to understand how fat acts in the body in order to develop new approaches in reducing heart and circulatory disease.

“If you are overweight, obese, or if you have a waist size that is increased, it is important to make changes to your lifestyle, such as eating a healthy diet and doing regular physical activity, to reduce your risk of heart health problems.”

source :BBC

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