Interesting facts about human body

HARD-WORKING HEART

The heart is the hardest working muscle in the body. Every day, it creates enough energy to drive a semi-truck over 18 miles (30 kilometres). Over a lifetime, that’s equivalent to driving to the moon and back.

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AMAZING BRAIN

The brain is 60 percent fat, but it still works hard. At any given time, your brain can generate up to 25 watts of power – that’s enough to power a light bulb.

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GROWING SKIN

Skin is the human body’s largest organ and is constantly renewing itself. Your skin sheds 50,000 cells every minute. Over a lifetime, that piles up to 40 pounds (18.1 kilogrammes) of skin.

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THOUGHT POWER

Your brain is always working, and it is actually more active while you’re sleeping. Scientists say the average person has roughly 70,000 thoughts each day.

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SHRINKING BONES

You’re born with more than 300 bones, but by the time you’re an adult, you have just 206. This is because some of the bones fuse together.

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WOMB WITH A VIEW

Babies in the womb grow 8,000 new brain cells every second. Newborn babies can recognise their mother’s face after just a few hours.

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INCREDIBLE SENSE

Scientists have discovered that the visual cortex of blind people can rewire itself to respond to stimuli received through touch and hearing, helping them to "see" by touch and sound.

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UNFEELING BRAIN

The brain itself doesn’t have any pain receptors, so it doesn't feel anything. That is why surgeons can perform open brain procedures on patients while they are awake.

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PUMP POWER

During an average lifetime, the heart will pump nearly 1.5 million barrels of blood. A pumping human heart can squirt blood 10 yards (9.1 meters).

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FAST SNEEZE

The typical human sneeze travels at just under 40 mph (64 kph). That’s the same speed as a running tiger!

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LONG ARTERIES

If your arteries, veins and capillaries were laid out end to end, they would measure 62,137 miles (100,000 kilometres). That’s nearly enough to stretch two and a half times around the planet!

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GROWING HAIR

Your hair grows nearly one-quarter of an inch (6 millimetres) every four weeks and keeps on growing for up to six years. The hair then falls out, and another grows in its place.

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AMAZING MEMORY

Smell is the oldest of all the senses - before sight, hearing or touch, creatures evolved to respond to chemicals around them. Your brain can remember over 50,000 different scents.

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AGEING BRAIN

The human brain is the most sophisticated thing in the known universe. Humans have more brain cells at the age of two than at any other point in their lives, but it takes nearly 20 years for the brain to mature.

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IRON MAN

There is enough iron in a body to make a metal nail measuring up to three inches (7.6 centimetres) long.

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EYE FOR DETAIL

If the human eye were a digital camera, it would have 576 megapixels. An eye can distinguish about 10 million different colours.

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WATER

In a lifetime, a person drinks 20,000 (75,000 litres) gallons of water

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POOL OF DROOL

An average person produces about 1.8 pints (one litre) of saliva a day or 25,000 quarts (23,658 litres) of saliva in a lifetime. This is enough to fill two swimming pools.

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EARS AND NOSE ALWAYS GROW

Did you know that one’s ears and nose never stop growing?

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MILES TO GO

If uncoiled, the DNA in all the cells from the human body would stretch up to 10 billion miles. That’s the distance from Earth to Pluto and back or 6,000 trips from Earth to the moon.

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LONG-TERM STORAGE SPACE

Your brain’s long-term memory, which develops until the age of 40, can hold as many as 1 quadrillions (1 million billion) separate bits of information in a lifetime.

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BEAT-BOPPING HEART

The pulse of your heartbeat changes according to the music you listen to.

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TONGUE PRINT

Just like fingerprints, every person has a unique tongue print.

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TASTY TREATS

Your mouth contains around 10,000 taste buds, most of which are located on and around the tiny bumps on your tongue. However, the sense of smell is necessary for taste, too.

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COLOUR OF BONES

Did you know the colour of the human bones is actually range from beige to light brown? The bones you see in museums are white in colour because they have been boiled and cleaned.

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A CHARGED HEART

Since a human heart has its own electrical impulse, it can continue beating for a period of time even if it is separated from the body.

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A FEW INTERESTING FACTS

Blood - Sugar Chart

A detailed description of values of sugar in blood in terms of mg/dl depending upon the test- Fasting, maximum and Glucose tolerance test (GTT) for Normal persons, early diabetes and established diabetes

Insulin, a hormone produced by the pancreas, helps maintain normal blood sugar levels

Blood sugar (glucose) - main fuel that the body uses to produce energy

Uncontrolled or high blood sugar levels can lead to health complications such as blindness, heart diseases, kidney disease, sexual erectile dysfunction.

The increase in the concentration of glucose in the blood leads to a condition called "diabetic coma" or hyperglycaemia.

NORMAL VALUE

Fasting Value 70 to 110

2 Hours After Food 80 to 120

EARLY DIABETES

Fasting Value 120 to 140

Maximum Value 160 to 180

ESTABLISHED DIABETES

Fasting Value more than 140

Maximum Value 200 or more

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The central nervous system is composed of more than 100 billion neurones.

The cerebral cortex is the smallest part of the brain, but it is the largest portion of the nervous system.

The brain has three parts:

cerebrum-outer part; governs thought, the senses and movement

cerebellum-middle; controls balance and muscle coordination

cerebral cortex-inner; governs involuntary muscles

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DO YOU KNOW THE SIGNS OF A HEART ATTACK?

Uncomfortable pressure, fullness, squeezing or pain in the centre of the chest lasting longer than two minutes.

Pain in the shoulder, arm, neck or jaw.

Sweating.

Nausea and vomiting.

Shortness of breath, dizziness or fainting.

Your heart is a hollow muscle about the same size as your fist

Your heart beats about 100,000 times a day

Your heart pumps a total of 8,000 gallons of blood 12,000 miles through your body every day

The heart beats 3000 million times in an average lifetime.

The heart beats an average of 72 beats a minute

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Skin is the body's largest organ. The liver is the second largest

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Everyone is color-blind at the beginning of life. That's because cone cells don't develop in the eyes until a baby is about six to eight months old

There are as many as 50 or more primary sensations of smell

There are over 200 different cold viruses

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Did you know that pain has a purpose? Pain is a protective mechanism for the body. It occurs whenever tissues are being damaged, and it causes the individual to react to whatever is causing the pain

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WHAT ARE THE PRIMARY SENSATIONS OF TASTE?

Sour, Salty, Sweet and Bitter

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Hiccupping occurs when your normal breathing pattern gets interrupted. Your diaphragm sends an unusual gust of air to your lungs. At the same time, your brain sends a message to your tongue and upper part of your throat to clamp down to stop the rush of air.

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Donated organs need to be transplanted quickly How long can be donated organs last outside the body?

A heart lasts three to five hours

A liver lasts for 10 hours

A kidney lasts for 24 to 48 hours

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THE HUMAN BODY CONSISTS OF NINE MAIN SYSTEMS:

Skeletal system

Muscular system

Nervous system

Hormonal system

Circulatory system

Digestive system

Respiratory system

Immune system

Reproductive system

The entire body contains about 100 trillion cells

About 56 percent of the human body is fluid

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THERE ARE 206 BONES IN THE HUMAN BODY

Bones might be classified as part of the circulatory system since they produce all of the body's blood cells within their marrow.

Although your bones are hard, inside they are, in fact, light and spongy and about three-fourths water.

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THERE ARE 600 MUSCLES IN THE BODY

Each hair on your body comes equipped with a tiny muscle that can make it stand upright.

Approximately 40 percent of the body is skeletal muscle and almost another 10 percent is smooth and cardiac muscle.

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BLOOD IS A LIQUID ORGAN

There are four types of blood,

A, B, O and AB and the most common is type O:

Type O - 47%

Type A - 41%

Type B - 9%

Type AB - 3%

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KIDNEYS CLEAN YOUR BLOOD

Each minute, about a quart of blood, passes through your kidneys and comes out clean

In a lifetime, your kidneys will wash more than 1 million gallons of blood

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You have 26 feet of intestine; the small intestine is 21 feet long and the large intestine is 5 feet.

Did you know that your digestive system starts working even before you take your first bite of food? The sight and smell of the food make special glands in your mouth produce saliva or spit.

A meal takes between 12 to 15 hours to go through the whole digestive system.

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WHAT JOB DOES YOUR APPENDIX DO?

Nothing, it is a little dead-end tube or sac that dangles about three inches from the lowest part of your large intestine. Food particles sometimes get caught in the tube and bacteria grows, irritating the appendix. It swells up and needs to be removed.

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An average adult needs between 1,300 and 1,600 calories a day

Growing kids ages 7 to 10 need an average of 2,400

Boys ages 11 to 14 needs 2,700

Girls that age need 2,200

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Testicles are parts that are found on the bodies of male creatures. Male mammals, including men, have two testicles, supported in a sac of skin below the penis called the scrotum. Testicles are called reproductory organs or "sex organs". Only males have testicles; females have ovaries.