Scientists say the higher your I.Q. The more you dream.

The largest cell in the human body is the female egg and the smallest is the male sperm. 

You use 200 muscles to take one step.

The average woman is 5 inches shorter than the average man.

Your big toes have two bones each while the rest have three.

A pair of human feet contains 250,000 sweat glands.

A full bladder is roughly the size of a soft ball.
The acid in your stomach is strong enough to dissolve razor blades.

The human brain cell can hold 5 times as much information as the Encyclopedia Britannica.

It takes the food seven seconds to get from your mouth to your stomach.


The average human dream lasts 2-3 seconds.

Men without hair on their chests are more likely to get cirrhosis of the liver than men with hair.

At the moment of conception, you spent about half an hour as a single cell.

There are about one trillion bacteria on each of your feet.


Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil.

The enamel in your teeth is the hardest substance in your body.


Your teeth start growing 6 months before you are born.


When you are looking at someone you love, your pupils dilate, and they do the same when you are looking at someone you hate. 

Your thumb is the same length of your nose.


At this very moment I know well you are putting this last fact to the test... remove your thumb from your nose and pass this on to the friends you think might be interested in comparing their thumbs to their noses as well.  


Different parts of our body ages at different times

We all  accept that getting older is inevitable, and now leading clinicians have revealed the exact age when different body parts start to decline, most alarming being the brain and lungs.
French doctors have found that the quality of men's' sperm starts to deteriorate  by 35, so that by the time a man is 45 a third of pregnancies end in miscarriage. Here, with the help of leading clinicians, Angela Epstein tells the Daily Mail the ages when different parts of the body start to lose their battle with time.
BRAIN -  Starts ageing at 20
As we get older, the number of nerve  cells - or neurons - in the brain d! ecrease. We start with around 100  billion, but in our 20s this number starts to decline. By 40, we could  be losing up to 10,000 per day, affecting  memory, co-ordination and brain function.

GUT -  Starts ageing at 55.
A healthy gut has a good balance betwee harmful  and 'friendly' bacteria. But levels of friendly bacteria in the gut drop  significantly after 55, particularly in the large intestine, says Tom  MacDonald, professor of immunology at Barts And The London medical  school. As a result, we suffer from poor digestion and an increased risk  of gut disease. Constipation is more likely as we age, as the flow  of digestive  juices from the stomach, liver, pancreas and small intestine slows  down.
BREASTS -  Start ageing at 35
BY their mid-30s, women's breasts start losing  tissue and fat,  reducing size and ful! lness. Sagging starts properly at 40 and the  areola(the area surroundi ng the nipple) can shrink considerably.

BLADDER -  Starts ageing at 65
Loss of bladder control is more likely when  you hit 65. Women are more vulnerable to bladder problems as, after the  menopause, declining oestrogen levels make tissues in the urethra - the  tube through which  urine passes - thinner and weaker, reducing bladder support. Bladder  capacity in an older adult generally is about half that of a younger  person - about two cups in a  30-year-old and one cup in a 70-year-old. ....
LUNGS -  Start ageing at 20
Lung capacity slowly starts to  decrease from th! e  age of 20. By the age of 40, some people are already experiencing br  eathlessness. This is partly because the muscles and the rib cage which  control breathing  stiffen up.

VOICE -  Starts ageing at 65
Our voices become quieter and hoarser with age. The  soft tissues in the voice box (larynx) weaken, affecting the pitch,  loudness and quality of the voice. A woman's voice may become huskier  and lower in pitch,  whereas a man's might become thinner and higher.
EYES  -  Start ageing at 40

Glasses are the norm for many over-40s as  failing eyesight kicks in - usually long-sightedness, affecting our  ability to see objects up close.
HEART  - Starts ageing at  40

The heart pumps blood less  effectively around the  body as we get older. This is because blood vessels become less elastic,  while arteries can harden or become blocked because of fatty deposits  forming on the  coronary arteries - caused by eating too much saturated fat. The blood  supply to the heart is then reduced, resulting in painful angina. Men  over 45 and women over 55 are  at greater risk of a heart attack. 

LIVER -  Starts ageing at 70
This is the only organ in the body  which seems to defy  the aging process.
KIDNEYS -  Sta! rts ageing at 50

With kidneys, the number of  filtering units  (nephrons) that remove waste from the bloodstream starts to reduce in  middle age.
PROSTATE  -  Starts ageing at 50
The prostate often becomes enlarged with  age, leading to  problems such as increased need to urinate, says Professor Roger Kirby,  director of the Prostate Centre in London . This is known as benign  prostatic hyperplasia  and affects half of men over 50, but rarely those under 40. It occurs  when the prostate absorbs large amounts of the male sex hormone  testosterone, which increases the  growth of cells in the prostate. A normal prostate is the size of a  walnut, but the condition can increase this to the size of a tangerine.

BONES  - Start ageing at 35
'Throughout our life, old bone  is broken down  by cells called osteoclasts and replaced by bone-building cells called  osteoblasts - a process called bone turnover,' explains Robert Moots,  professor of  rheumatology at Aintree University Hospital in Liverpool . Children's  bone growth is rapid - the skeleton takes just two years to  renew
itself completely. In adults, this can take  ten years. Until our mid-20s, bone density is still increasing. But at  35 bone loss begins as part of the natural ageing process.
TEETH  - Start ageing at 40
As we age, we produce less  saliva, which washes  away bacteria, so teeth and gums are more vulnerable to decay.?Receding  gums - when tissue is lost from gums around the teeth - is common  in adults over  40.

MUSCLES  - Start ageing  at 30
Muscle is constantly being built up and broken down,  a process which is well balanced in young adults. However, by the time  we're 30, breakdown is greater than buildup, explains Professor Robert  Moots. Once  adults reach 40,  they start to lose between 0.5 and 2 per cent of their muscle each year.  Regular exercise can help prevent  this.
HEARING -  Starts ageing mid-50s
More than half of people over 60 lose  hearing because of their age, according to the Royal National  Institute for the Deaf.
SKIN - Starts ageing mid-20s
The skin  starts to age naturally in your  mid-20s.
TASTE  AND SMELL -  Start ageing at 60
We start out in life with about 10,000  taste buds  scattered on the tongue. This number can halve later  in life. After we turn 60, taste and smell gradually decline, partly as  a result of the normal ageing process.
FERTILITY -  Starts ageing at 35
Female fertility begins to decline after  35, as the number  and quality of eggs in the ovaries start to fall. The lining of the womb  may become thinner, making it less likely for a fertilised egg to take,  and also creating an environment  hostile to sperm.

HAIR -  Starts ageing at 30
Male hair loss usually begins in the 30s. Hair is  made in tiny pouches  just under the skin's surface, known as follices. A hair normally grows  from each follicle for about three years, is then shed, and a new hair  grows.  Most people  will have s! ome grey hair by the age of 35. When we are young, our hair  is coloure d by the pigments produced by cells in the hair follicle  known as melanocytes

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