18 unbelievable facts about Human Body

unnamed - 18 unbelievable facts about Human Body

Unbleivable facts about human body.body have million cell, tissue,organ,etc .few thing we know our reserch to tell you the unbleivable facts about our body.

1.Strongest muscle in your body

If you define strengh as the ability to exert the most pressure, then the strongest muscle in the human body is the masseter muscle. It is the thick cheek muscle near the back of your jaw that opens and closes your mouth when you chew.

2.Why do we feel thristy?
A feeling of thirst occurs when water loss is equal to 1per cent of your body weight. It’s the brain that signals you are thristy. The loss of more than 5 percent of water can cause fainting, and more than 10 percent can cause death from dehydration.

3.Surface area of lungs
Total surface area of lungs may vary from 50 to 70 square metre, which is equal to the surface area of a tennis court.

4.Fastest way to lose calorie
Banging your head against the wall makes you lose the maximum number of calories-no less than 150 calories! But don’t try this at home.

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5.Man or woman , whose heart beats faster?
A Canadian study reveals a woman’s heart beats faster than man’s.the same study says women have a circadian rhythm, which runs between 1.7 and 2.3 hours ahead of their male partners. Did you know that human heart pumps 2,000 gallons of blood every day?

6.Memory capacity of human brain
Paul Reber, professor of psychology at Northwestern University, says the brain’s storage capacity is somewhere close to around 2.5 petabytes (or a million gigabytes). According to other estimates, the human brain can store data anywhere between 10 terabytes and 100 terabytes.

7.How many cells die every second in the human body.
Cells are always created and destroyed in the human body. About 300 million cells die every minute in our body. To be precise 50,000 cells in your body died and were replaced by new ones while you were reading this sentence.

8.When does a child acquire a Fingerprint?
Children acquire fingerpring much before they are born, which means in their mother’s womb. Children get the fingerprints when they are six month old in the embryo, says a study conducted at university of California.

9.How to we remember what we dream?
Human sleep occurs in several cycles during the night, each cycle consisting of 5 stages of sleep. The first 4 stages of sleep are of varying depth ranging from light sleep to deep sleep. All these stages put together are refferred to as non-REM sleep. The last stage of sleep is paradoxical in the sense that there is an increased activity of the brain, and is associated with roving eye movements hence called REM (rapid eye movement) sleep. Dreams typically occur during REM sleep.

10.Newborn babies can swallow and breathe at the same time
Known as suck-swallow-breathe, this is a skill that may take time to learn for some babies. At birth, the epiglottis and soft palate touch during quiet respiration with the mouth closed. During breakfeeding, the larynx elevates which allows the epiglottis to interlock with the soft palate. This allows the newborn to breathe and swallow at the same time – something the adult human cannot do.

11.How long can human hair grow?
Human hair grows at a speed of 1/2 inch per month – strangely it grows faster during summer and when you are asleep. If allowed to grow for their whole lifetime, the length of a person’s hair would be about 725 kilometres.

12.Part of body which has no blood supply.
The cornea is the only organ in the entire human body that has no blood supply. It gets oxygen directly from the air. Amazingly, the cornea is also the fastest healing tissue in the human body – as a result, most corneal abrasions heal within 24-36 hours.

13.How many times do we breathe in a day?
Children have fast breathing rates and breathe 30-60 times per minute. Toddlers might breathe 20-30 times per minute. Older children and adults, when resting, usually breathe about 12-20 times per minute. Over the course of a day, that adds up to 17,000 – 30,000 breaths per day.

14.Which body part cannot heal itself?
Teeth, unlike other body parts, cannot heal itself once they’re damaged. When the tooth erodes, there aren’t any living cells around to swoop in and heal the tooth. Did you know that just like your fingerprints, even your teeth are unique? No two people in this world have same the set of teeth.

15.How fast do nerves send signals to and from the brains?
Messages from the brain can travel at speeds up to 268 miles/hour.

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17.Largest cell in body
The largest cell in the human body is the female egg and the smallest cell is the male sperm. From head to tail, human sperm cells measure about 50 micrometers (0.05 millimetre or roughly 0.002 inches). A human egg is about 30 times bigger – larger enough to be seen with the naked eye.

 18. Our body have.

Your body is made of about 7 octillion atoms (that’s 7,000,000,000,000,000,000,000,000,000 atoms).

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