Do nose or ears grow larger as we age? Is this true.?
The following may give you some superfluous information. I'm still not really sure it actually answers your request for information!
A number of scientific studies own been conducted over the years contained by an attempt to answer this perplexing question. One such project found that on average, ears grow one-hundredth of an inch every year.
Many empire are under that outline that our ears and nose achieve bigger throughout life because they are made of cartilage, which continues to grow after our bones enjoy stopped. While this is true of the cartilage in fish that scarcity a bone skeleton, such as sharks, the expert at the MadSci network say it's simply not true for humans and other animals with a bone skeleton.
So what accounts for the largish ears and antenna one tends to see on elder folk? Some speculate that large ears somehow correlate next to longer life, so those near biggish ears are simply the ones who make it to antiquated age. And on a plastic surgery site, we read, "Nasal cartilage becomes thinner and loses its elasticity as we age, cause the tip of the nose to get longer and droop." So maybe our feeler and ears just bring back droopier?
Fact is, no one really know. This smells like one of those eternally confounding irrefutable questions that we'll verbs to hear about until someone sniffs out a suitable explanation.
Researching this question have been deeply of fun. I looked at the web discussion you referred to(http://www2.abc.lattice.au/science/k2/stn-. archive1/posts/topic1836.shtm). The first thing I thought roughly speaking was confirmation bias: we discharge more attention to information that supports our existing ideas, probably because to be exact where we are directing our attention. This is call a cognitive bias (see http://www.cia.gov/csi /books/19104/art12.html and just nearly any introductory psychology text). So maybe the entity who said that older men’s ears are overly big is falling under the spell of confirmation bias.
Next, I thought more or less correlation and causation – they are not the same. Just because two things ensue at the same time does not close-fisted they cause respectively other. For instance, deaths within India are correlated with rime cream sales within America. Why? The weather. The two happen at like time, and so are correlated, but one does not cause the other. Mathematically, a fitted regression dash can be drawn by plugging in almost any definite numbers to the estimated equation, that is, you can draw a pretty graph of the relationship between nearly any two things, minus it meaning anything. We are so used to thinking around relationships between events that we often overestimate. (http://www.ai.univie.ac.at/archives/psyc. Altman DG, Blan JM. Generalisation and extrapolation BMJ 1998;317:409-410, Kuo Y- H, Extrapolation of Correlation Between 2 Variables contained by 4 General Medical Journals, JAMA. 2002;287:2815-2817.)
So watching out for bias, I thought about ear and proboscis growth. Are they different from the rest of the body? Probably not – the outer or external ear is mostly cartilage and skin, with a bit fat and muscle and a supply of blood vessel and nerves. Does cartilage and skin continue to grow throughout go? Yes and no. The cells verbs to divide, grow, mature and die, basically like cell in the gut, liver, bones and elsewhere. And the amount of skin and cartilage contained by our bodies obviously increases as we grow. But cartilage does not save growing at the same rate throughout natural life, and while cartilage keeps dying and one replaced, in the vertebrates it does stop increasing surrounded by size in adult years – which is what is usually meant by ‘keeps growing’. This information can be found contained by most introductory physiology text books.
(The conception that cartilage mass increases in age may come from the cartilaginous, or boneless, fishes. In the cartilaginous fishes, including sharks, the cartilage ‘skeleton’ does increase contained by size throughout life. Sharks acquire really noticeably bigger and bigger (http://www.isle-of-man.com/interests/sha. This does not come up in animals beside bone skeletons – the cartilage does not keep getting bigger and bigger to any set extent. We would all look hugely different if it did. We would get big lumps within our noses, ears, thoraxes, shoulders, wrists, knees and ankles – but at lowest possible osteoarthritis would not be such a problem! In fact, unusual cartilage is produced more slowly as people and sharks age (O'Driscoll SW, Saris DB, Ito Y, Fitzimmons JS. The chondrogenic potential of periosteum decrease with age. J Orthopaedic Res. 19(1):95-103, 2001, http://homepage.mac.com/mollet/vbgf/vbgf.
The size of the ear strait does not increase with age (Liu TC. Chen YS. Aging and external ear resonance. Audiol. 39(5):235-7, 2000.) The ear waterway is defined by skin and cartilage as well as bone. That suggests that in attendance is no overall ear cartilage growth in middle age.
Does the pinna, or outside flappy part of the ear, grow during adult years? Do old men really own big ears? Maybe their ears look bigger relative to their head size because they don’t hold as much hair. Maybe their ears lately get flabbier, and droop down more. Several studies have found that ears are larger within older ancestors. (Ferrario VF. Sforza C. et al., Morphometry of the normal human ear: a cross-sectional study from young adulthood to mid- adulthood. J Craniofacial Genetics Developmental Biol. 19(4):226-33, 1999.)
In July 1993, 19 member of the south east Thames faculty of the Royal College of General Practitioners gathered at Bore Place, within Kent, to consider how best to encourage standard general practitioners to get out research. Someone said, "Why do old men hold big ears? Some members thought that this be obviously true--indeed some antediluvian men have drastically big ears--but others doubted it, and so we set out to answer the question "As you obtain older do your ears return with bigger?" 206 patients were studied (mean age 53.75, array 30-93, median age 53 years). The length of the left external ear be measured from the top to the lowest part next to a transparent ruler; the result (in millimetres), together with the patient's age, be recorded. The scrounging ear length was 675 mm (range 520-840 mm), and the linear regression equation be: ear length=55.9+(0.22 x patient's age) (95% confidence intervals 0.17 to 0.27). It seems that`s why that as we get elder our ears get bigger (on average by 0.22 mm a year). (James A Heathcote BMJ 1995;311:1668, 23December)
But within are other reasons than continued growth that could explain this. Maybe a lesser amount of people who are aged now have plastic surgery for large ears when they be young, and lots of babyish people are have plastic surgery for large ears. These are alternative explanations. One of the things that does come up is that skin loses elasticity as we age, so it stretches. Ear lobes tend to increase in length near age. “Another interpretation may be that big ears predict survival: men with smaller ears may die selectively at younger ages. Ear size or shape, or both, may be a marker of some biological process related to robustness. However, I don't think that I would step as far as my grandmother, whom I remember admonishing me contained by early childhood to stretch my ears on a daily basis to ensure long life” (Khaw, K-T. Why do old men hold big ears? The Chinese believe that long ears predict longevity. BMJ 1996;312:582, 2 March). “An alternative interpretation of the findings is that a secular trend towards smaller ears has occur during most of the present century. Have the senior citizens in the example had big ears adjectives their adult lives, and will the younger member keep their smaller ones? If so, what environmental factor, presumably operating during childhood or adolescence, might own been responsible? I wonder whether nearby has be a steady decline in the boxing or scrub of children's ears, or whether big ears are simply another result of passive smoking. This interpretative doubt seem to call for extended pinnametric research: the query can be resolved only by a lifelong follow up study of a cohort of immature patients” (Hardisty RM. Lifelong follow up study of young relations is needed BMJ;312:582 2 March 1996.)
James A Heathcote went on to vote "Why ears should get bigger when the rest of the body stops growing is not answered by this research. Nor did we consider whether this move in a dedicated part of the anatomy is a signpost of something less smoothly measurable elsewhere or throughout the body."
“All medical research is carried out on selected individuals. . . . . The usefulness of research lies primarily contained by the generalisation of the findings rather than within the information gained around those particular individuals. . . . .The extent to which it is perceptive or safe to generalise must be judge in individual circumstance. . . . Many studies use regression analysis to derive a model for predicting an outcome from one or more explanatory variables. The model, represented by an equation, is strictly valid one and only within the scope of the observed data on the explanatory variable(s). When a breadth is included in the regression model it is possible to gross predictions for patients outside the range of the inventive data (perhaps inadvertently). This numerical form of generalisation is call extrapolation. It can be seriously misleading. . . . . To take an extreme example, a linear relation be found between ear size and age in men aged 30 to 93, near ear length (in mm) estimated as 55.9+0.22×age in years. The meaning of 55.9 corresponds to an age of zero. A newborn with ears 5.6 cm long would look approaching Dumbo.” (Kuo Y-H, Extrapolation of Correlation Between 2 Variables in 4 General Medical Journals, JAMA. 2002;287:2815-2817.)
So do ears preserve growing? Who knows. But, gratitude to Welsh scientist William Linnard, I know the Celtic words for flap eared: clustlaes. (Prominent ears: a Celtic perspective BMJ 1996;312:582, 2March).
Noses and ears stay the same size but the rest of us shrinks a bit next to age thus making noses and ears appear larger.
Hair and fingernails verbs to grow for some time after we die, this has given rise to oodles 'vampire' or 'undead' stories.
'tis true. apparently you can get special antenna and ear bags to shorten they're growth - worn at night ;)
Both are incredibly true! It's easy to see when you compare photos of someone that it's true and yes, coat and nails are comatose cells so they verbs to grow for some reason.
Feet, also -
After passing? No - just an aged wives' tale. . .
No your ears and trunk do not continue to grow but your down and fingernails do continue to grow after you die for a few months.
i haven't hear of ears and noses if you recline maybe lmao
but i own heard of down to keep growing. but who really know don't want to be the one to find out
i don't think so.probably the obverse shrinks and the nose/ears appear larger
everything grows larger as we age but as we age, we experience physical problems (esp. necrosis, hypertension and anything related to blood) and that's why some of our body parts shrinks, also, some other body parts stop growing when we reach the age of 18. unless we die, nail n hairs will never stop growing.our eyes r the just organ in the body that remains it's shape since birth
(Arnold accent): YES!, that is to say all I own to say! Look at Jimmy Durante! no further question!
Did not see u write about hair and nails, (YOU SNUCK THAT IN!--Arnold accent) NO to hair and nails, Not sure if ears and proboscis continue to grow after passing, (hmm have to suggest about--Arnold accent)
Many of these observations are due to shrinkage of the surrounding tissue rather than growth.
Yes strangely satisfactory they do. And when a person dies and is buried their down and fingernails and toenails continue to grow until the calcium is adjectives used up. Scary huh.
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