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Post by vimala on Jun 21, 2008 13:19:34 GMT 5.5
241 Brain uses 20 % of our body energy and makes up only 2 % of our body weight.
242 Any damage to brain cells cannot be repaired completely.
243 Human brain stops growing at the age of 18.
244 Male hairs are denser and grow faster than females.
245 Depending on the area of the human body, the thickness of the skin varies from ½ to 6 mm.
246 Tongue is the strongest muscle in the human body.
247 A Pair of feet contains about 250,000 sweat glands.
248 The human skin sheds and re-grows after every 27 days.
249 A Blind person looses only about 1/5th of vision.
250 One in every 2000 babies is born with a tooth.
251 Pregnancy in women lasts on average of about 270 days from the time of conception till birth.
252 Sneezing too hard can cause rib fracture and suppressing the sneeze can cause damage to the blood vessels of head or neck.
253 On freeze drying, 10 % of body weight is contributed by the micro organisms of our body.
254 About 80 % of ultra- violet rays from the sun can get through the cloud and can cause sunburn or tan even on a cloudy day.
255 The human stomach contains about 35 million small digestive glands.
256 The ovaries of a female contain about 600, 000 immature eggs at birth.
257 The ovaries of a female contain about 600, 000 immature eggs at birth.
258 The human body has 4 million pain sensitive structures.
259 Each lung contains 300-350 million respiratory units called alveoli.
260 Human blood contains 22,000 million cells.
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Post by vimala on Jun 21, 2008 13:21:36 GMT 5.5
261 Human skin is re-newed itself every 5 weeks.
262 A New stomach lining is formed every five days.
263 A human ear contains about 24,000 fibers in it.
264 The largest cell in the woman is the egg or ovum present that is released from the ovaries.
265 Women burn fat more slowly than men.
266 The leg bone is the fastest growing bone in the human body.
267 There are 22 bones in the human skull.
268 A muscle called the diaphragm controls the human breathing process.
269 The human brain is made up of more than 10 billion nerve cells and over 50 billion other cells and weighs about less than three pounds.
270 2/3 of the human body is made up of water.
271 Vitamin C and E fights against Dementia - a disease of forgetfulness in the elderly person.
272 Half a liter of water per day is lost through breathing.
273 Drinking coffee prevents Parkinsons disease.
274 Cold weather improves human memory and concentration.
275 Most of the bones in the human body constitutes about 3/4 of water.
276 An adult human body contains five to six quarts of blood and an infant has about one quart of blood.
277 Blind people understand spoken words quicker than sighted people.
278 A human lung contains about 700 million alveoli.
279 Vitamin E protects the brain cells from damage caused by alcohol consumption.
280 The human body contains more bacteria than the number of cells present in it.
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Post by vimala on Jun 21, 2008 13:23:24 GMT 5.5
281 The longest muscle in the human body is sartorius, which is present in the hip region and it is commonly called as tailors muscle.
282 Melanin, a pigment present in the skin is responsible for the color of the skin in a person.
283 Except the heart and lungs, all other parts of the body receive their blood supply from the largest artery of the body, the aorta.
284 The Pulmonary vein is the only vein in the human body that carries oxygenated blood while all the other veins of the body carry de-oxygenated blood.
285 The human blood is colorless. It is the hemoglobin; a pigment present in the red blood cells is responsible for the red color of the blood.
286 The smallest muscle in the human body is the stapedius, which is present deep inside the ear.
287 The human brain is very soft like that of butter.
288 A heartbeat is nothing but the sound produced by the closure of valves of the heart when the blood is pushed through its chamber.
289 Hold out your hand and make a fist. If you are a kid, the size of your heart is same as the size of your fist and if you are an adult it is about the same size as twice as your fist.
290 About 500 million sperm mature every day in a normal male adult.
291 Sixty percent of the human body nerve ends in the forehead and the hands.
292 A human body contains about 200,000 temperature detectors.
293 A human body has 500,000 touch detectors.
294 If all the alveoli from both lungs were spread flat they would cover an area nearly the size of a tennis court.
295 Each human eye contains 130 million light receptors.
296 The human scalp contains about 100,000 hair follicles, from which the hair grows.
297 The human skeleton renews once in every three months.
298 The human skin cells multiply every second to replace the worn ones.
299 The cells of the heart and brain do not multiply through out their lifetime.
300 The whole leg constitutes of 31 bones.
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Post by vimala on Jun 23, 2008 16:45:11 GMT 5.5
301 The human skull and upper jaw consist of 21 bones.
302 When we see an image, the human eye captures the inverted image of it. It is the brains interpretation that makes us to see the upside down captured image in to a normal erect image.
303 An average person laughs about 15 times a day.
304 A womens heart beats faster than a mens.
305 The average person is about a quarter of an inch taller at night.
306 The food will get in to the stomach even if one stands on their head.
307 The eyes have the fastest reacting muscle in the whole body. It contracts in 1/100th of a second.
308 Almost every seven years, the human body replaces the equivalent of an entirely new skeleton.
309 Laughing and coughing creates more pressure on the spine than walking or standing.
310 The human heart continues to beat even though it is taken out of the body or cut in to pieces.
311 On an average, the human blood circulates the body for every 23 seconds.
312 In an average person, it takes 8 seconds for food to travel down the food pipe,3-5 hours in small intestine and 3-4 days in large intestine.
313 The brain continues to send out electric wave signals until approximately 37 hours after death.
314 People under 30 years of age take in double the amount of oxygen as people over 80 years of age.
315 The human body takes 6 hours to digest a high fat meal and it takes 2 hours for a carbohydrate meal.
316 On an average an adults heart pumps about 4,000 gallons of blood each day.
317 The muscles of our body constitute 40% of our body weight.
318 Iris is the part of the eye that determines the color of the eye.
319 Red Blood Cells comprise about 40 % of blood volume.
320 The human eye contains structures called Rods and cones. Rods register the shapes of images and respond to low levels of light and Cones responds to bright lights and registers the color of images.
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Post by vimala on Jun 24, 2008 0:37:13 GMT 5.5
321 We tend to get cold very easily in the winter season because we are indoors and in close proximity to each other.
322 Our Muscles often work in pairs so that they can pull in different or opposite directions.
323 The left side of the human heart is much thicker and stronger than the right side
324 Human blood is a make up of Red Blood Cells carrying oxygen, White Blood Cells that fight disease, Platelets that help the blood to clot and a liquid called plasma.
325 Human hair is made up of a body protein called keratin and it grows out of an opening of the skin called Follicle.
326 Every day 440 Gallons of blood flows through the kidney.
327 Red Blood Cells lasts only for about 4 months before they wear out.
328 Every minute 30,000 to 40, 000 dead skin cells fall from our body.
329 Straight hair lies flat because it is round and grows out of round follicles.
330 Curly hair comes out of an oval follicle.
331 Goose bumps on our skin are caused by pull of muscles attached to hair follicles and make the hair upright.
332 The color of our hair is also determined by the melanin, a pigment present in the human body.
333 The human adult heart pumps about 4,000 gallons of blood each day.
334 The human body contains 30 amazing hormones, which regulates activities like sleep, body temperature, hunger, and managing stress in times of crisis and so on.
335 A person growth like being tall or short is not determined only by the genes. Growth hormone also is responsible for it.
336 Red Blood Cells constitutes about 40 % of the blood.
337 The human body makes 2.5 million Red Blood Cells every second or about 200 billion Red Blood Cells every day.
338 Arterial blood contains a lot of oxygen and nutrients for the body whereas venous blood contains low oxygen level and nutrients.
339 Red Blood Cells are the only cells in the body that do not have a nucleus.
340 If the blood vessels were laid from end to end, they would reach around the world four times.
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Post by vimala on Jun 26, 2008 16:51:14 GMT 5.5
341 On an average, the human growth hormone, which is responsible for a person growth is produced at the rate of 500 microgram per day at the age of twenty, 200 microgram per day at the age of fourty and 25 microgram per day at the age of eighty.
342 It is estimated that there are over 1, 000,000,000,000,000 connections in the human brain.
343 Human brain constitutes 60 % of white matter and 40 % of grey matter.
344 The average length of the human brain is about 167 mm and its average height is 93mm.
345 A human heart pumps about 1,314,000 gallons of blood a year through its blood vessels.
346 There are about 30 - 40 billion white blood cells present in our body to fight against infective and foreign organisms.
347 The human bladder can stretch to hold about 400ml of urine.
348 All the blood in our body passes 400 times through each kidney per day.
349 The human Liver consists of 100,000 tiny clusters called lobules.
350 On an average, the human stomach holds about 2 liters of contents.
351 We produce 1 liter of saliva per day.
352 The human sense of smell has the ability to identify the chemical smell of an object in one part per trillion of air.
353 An average capillary is only 1mm.
354 Humans have about 2 to 3 million sweat glands, which can produce up to 13 liters of sweat on a hot day.
355 On an average, 100, 000 to 1000, 000 chemical reactions takes place in our brain.
356 1,000,000,000,000 nerve cells are present in each and every person head.
357 Liver cells take several years to replace themselves.
358 The white part of our fingernail is called as Lunula.
359 We are more likely to catch cold from a person by shaking his hand than from his sneeze.
360 The shoulder blade is connected to the body by means of 15 different muscles and it is not attached to a single bone.
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Post by vimala on Jun 26, 2008 16:53:16 GMT 5.5
361 The human brain uses 20 % of one blood and oxygen.
362 A healthy liver processes 720 liters of blood per day.
363 Plaque begins to form 6 hours after brushing our teeth.
364 59, 951 miles of blood vessels are present in our body.
365 Newborns will cry out without tears for the first three to six weeks.
366 The Nervous system transmits messages to the brain at the speed of 180 miles per hour.
367 The human nose can remember 50,000 different smells.
368 There is enough iron in the human body to make a small nail.
369 Women have better sense of smell than men
370 It is evaluated that the human eye can detect over 10,000,000 different colors.
371 The wax present inside the ear is made up of oil and sweat.
372 The female body is capable of giving birth to 35 children in one lifetime.
373 The spinal cord, which controls over 10 billion nerve cells, is less than two feet in length and its diameter is same as that of the index finger.
374 In the middle of the day, our eyesight will be sharper.
375 A newborn baby has more than 26 billion cells.
376 Sneezing clears dirt from the nose.
377 Inner ear is the main organ of balance.
378 Yawning brings more oxygen to the lungs.
379 Coughing clears mucous secretion from the throat.
380 Human speech is produced by the interaction of 72 muscles.
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Post by vimala on Jun 26, 2008 16:55:24 GMT 5.5
381 A New born baby loses about half of its nerve cells before it is born.
382 A neglected child brain can be substantially smaller than that of a healthy child.
383 On an average, the number of connections in the brain increases from 50 trillion to 1 quadrillion in a newborn during his first month of life.
384 On an average it takes about 13 days for a grey hair to grow.
385 Healthy human hair emits sound.
386 The human brain stores memories of fear.
387 The nerve cells present in the nose, allows us to smell and regenerates through out ones life.
388 Reading aloud to children helps to stimulate brain development.
389 A hair grows by 0.3 to 0.5 mm per day, 1 to 1.5 cm per month and 12 to 15 cm per year.
390 Children lose an average of 90 hairs per day, which increases to 120 by old age.
391 A childs ability to learn can increase or decrease by 25 % or more depending on whether the child grows up in a stimulating environment.
392 On an average a persons head has 100, 000 to 150, 000 hair.
393 A single hair has the ability to support up to 100 grams of weight and the whole hair has the ability to support up to 12 tones of weight.
394 The pigment of human hair is produced in the shaft of hair beneath the skin.
395 In lifetime, the human heart pumps about 1 million barrels of blood, which is enough to fill more than three tankers.
396 The width of an average human brain is 140 mm.
397 It takes 5- 30 seconds to chew food.
398 Swallowing of the food takes about 10 seconds.
399 The enzyme in the stomach that breaks down alcohol is produced less in men than women.
400 In a year on an average person sleeps for 122 days out of 365 days.
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Post by vimala on Jun 26, 2008 16:56:49 GMT 5.5
401 There are around 9,000 taste buds present on the tongue.
402 Capillaries are so small that it would take ten of them to equal the thickness of a human hair.
403 It is impossible to tickle our selves.
404 In a human body, the small intestine is 21 feet and the large intestine is 6 feet long.
405 For every 24 hours, in a healthy adult, more than a gallon of water containing over an ounce of salt is absorbed from the intestine.
406 The right side of the human brain is responsible for self-recognition.
407 Men listen with the left side of the brain and women use both sides of the brain.
408 In a lifetime, the human kidneys clean over 1 million gallons of blood.
409 Identical twins have identical DNA but not identical fingerprints.
410 Babies recognize sounds while in mothers womb.
411 Human bone is as strong as steel but 50 times lighter
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