Our blood vessels are 100,000 miles long and we breathe 50,000 times in a day. Shocked? So were we. Our body is full of surprises as it can do incredible stuff. We share with you some such interesting and unknown facts about our bodies.
​
Strongest muscle in your body
If you define strength as the ability to exert the most pressure, then the strongest muscle in the human body is the masseter muscle. Masseter muscle is the thick cheek muscle near the back of your jaw that opens and closes your mouth when you chew.
Why do we feel thirsty?
A feeling of thirst occurs when water loss is equal to 1 per cent of your body weight. The loss of more than 5 per cent can cause fainting, and more than 10 per cent can cause death from dehydration.
How long are our blood vessels?
Blood vessels of an average child would stretch over 60,000 miles and that of an adult would be 100,000 miles long.
Do you forget your dream?
Yes, it’s not only you but everyone who forget 90 percent of their dreams. 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 depths ranging from light sleep to very deep sleep. All these stages put together are referred to as non-REM sleep (or slow-wave sleep). The last stage of sleep is paradoxical in the sense that there is an increased activity of the brain (almost akin to the awaken state), and is associated with roving eye movements – hence called REM (rapid eye movement) sleep. Dreams typically occur during REM sleep. Characteristically, the dreams experienced during sleep are not remembered after waking up.
Man or woman: whose heart beats faster?
A Canadian study reveals woman's heart beats faster than man. The same study says women have a circadian rhythm, which runs between 1.7 and 2.3 hours ahead of their male partners.
When does a child acquire fingerprint?
Children acquire fingerprint much before when they are born, that means in their mother's womb. Children get the fingerprints when they are 6 months old in the embryo, says a study conducted at University of California.
How many cells die every second in human body?
Cells are always created and destroyed in the human body. About 300 million cells die every minute in our bodies. To be precise 50,000 cells in your body died and were replaced by new ones while you were reading this sentence.
How fast do nerves send signals to and from the brain?
Messages from the brain can travel at speeds up to 268 miles/hour.
New born babies can swallow and breathe at the same time
This is known as suck-swallow-breathe, and 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 breastfeeding, the larynx elevates which allows the epiglottis to interlock with the soft palate. This allows the new-born to breathe and swallow at the same time - something the adult human cannot do.
Memory capacity of a human brain
Paul Reber, professor of psychology at Northwestern University, tells that the brain’s storage capacity is somewhere close to around 2.5 petabytes (or a million gigabytes).
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.
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.
How long can human hair grow?
Human hair grows at a speed of 1/2 inch per month and strangely it grows faster during summer and when you are asleep. If allowed to grow for their whole lifetime, the length of someone’s hair would be about 725 kilometres.
Which body part cannot heal itself?
Banging head against the wall makes you lose maximum number of calories. It makes you lose 150 calories.
Surface area of lungs
Total surface area of lungs may vary from 50 to 75 square meter, which is equal the surface area of a tennis court.
How many times do we breathe in a day?
Children tend to 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 or more. The average breathing rates quite possibly may be 50,000 times or more per day if you're active.
Smallest and largest cell in human body
The largest cell in a human body is the female eggs and the smallest cells is male sperm. From head to tail, human sperm cells measure about 50 micrometres (0.05 millimetre or roughly 0.002 inches).A human egg is about 30 times bigger - large enough to be seen with the naked eye.
Would a person die quicker with lack of hunger or sleep?
A person would die quicker from total lack of sleep than from hunger. Death would occur after 11 days without sleep, whereas from hunger it would take several weeks.