Of course it hasn't been "proven", but we are only beginning to unravel the human genome.I think genes do contribute; some people just look older at a given age than their peers based purely on their genetic predisposition. Likewise, some people look younger ("baby face") despite an average or below average lifestyle. That said, beyond a certain age, lifestyle probably comprises most of the "looking younger" effect. I'd reckon that after 30 years of age, lifestyle begins to make huge contributions to one's appearance. If you started with good genetic predisposition, lifestyle will take that effect even further.Look I love this thread, but there is a huge deficit of statistical understanding/analysis present in its theme. You could rename this thread "A collection of outliers". It's easy to say these people committed themselves to being in shape, but the truth of the matter is that for every person shown here, there are 1000's of other people who did the same thing, or even more, and don't look nearly as good (or are dead already!). If this thread was going when Jeanne Calment was 95, she would probably be posted and remarked upon. We would say how good she looks, and try breakdown here lifestyle/regimen for hints behind her youthfulnes and vitality. The point is Jeanne Calment is probably just literally 1 in billions who could have done anything--like say smoke for 100 years--and get away with it to 120 years and beyond.Well I'm sure he has great genes, tho' after reading his thoughts, interviews and so on it seems that dude was always very conscious about self preservance/health. He mentioned a few times that the shape he is in and the vigour at his current age is "A dream come true"... I guess he had a dream - to be "in the game" for as long as possible...
I really wish people would stop perpetuating the 'genes' argument already, especially when it comes to people who choose to commit themselves to something. Saying it's 'genes' is kind of insulting to the personal integrity of the individual who makes the choice. It makes it sound like they don't have to work hard to get what they want. Or that somebody else who works just as hard won't get there.
I'm not hating on this thread. Anecdote is powerful, and sometimes all we have to work on. I base many of my decisions on anecdote when the hard science is right down the line or not yet robust enough. But this thread is Sampling Bias in its highest form.
On the contrary the anecdote is the genes argument, there is absolutely zero studies showing a correlation between people who look better and 'genes'. Every single person I have either known or known of, when making maximun effort with diet, exercise and supplementation, looks better than most people their ages.
If this is true it certainly has not been proven by any long term study. This 'genes' argument always surprises me coming from such stringent scientific minds. It's kind of a myth really when you think about it. Where did the myth begin? I have seen pictures of my father when he was my age, he looked about 5 years older due to smoking, drinking and probably not eating right.
We know the genetic predisposition towards cholesterol levels, fat and carbohydrate metabolism, fasting glucose, sex hormones, etc. We know the genes for hair thickness, eye color, skin color, etc. We know there are genes for collagen production, eye shape, nose shape, etc. Is it so hard to believe there are combinations of genes that predispose someone to look younger or retain the youthful look? In fact, neoteny has been cultivated in other animals through domestication (dogs, cats), so it obviously has a genetic basis.
Whether or not it is harder to believe it does not change the fact that there is no direct correlation to looking younger/older at specific ages that have been proven. Let us say that someone 'looks like' their parents because of a hypothetical genetic predisposition to having a certain shape face, nose, eye color, etc. It does not necessarily follow that the aging pattern of that individual will be identical to their parents. These, to me, are separate biological events than a predisposition toward a specific hair color, eye color, etc.
With regard to your neoteny in animals reference. Completely different genetic complexity level. There have been cases of two human dwarves giving birth to normal children with normal growth patterns, as well as the reverse. Plenty of normal couples give birth to children with abnormal birth defects, down syndrome, etc. So on this basis not everything can be deduced to this hypothetical culprit of genetics (though in some instances specific gene pairings have been hypothesized to be the cause of specific defects). That is, random genetic occurrences which are not completely explicable do occur. So why can't we control the rate at which certain (hypothetical) genetic characteristics unfold? Such as the rate at which one ages? It seems pretty clear to me that we can at least partially control some of these would be factors.
Edited by TheFountain, 18 January 2011 - 05:16 AM.