Scientists Identify a Potentially Universal Mechanism of Aging

cybergenesis2008 points us to a summary of research out of Harvard Medical School in which a set of genes known to affect aging in yeast was found to affect aging in mice as well. The genes, called sirtuins, perform two particular tasks; regulating which genes are "on" and "off," and also helping to repair damaged DNA. As an organism ages, the frequency of damage to DNA increases, leaving less time for the sirtuins' regulatory tasks. The increasingly unregulated genes then become a significant factor in aging. Realizing this, the researchers "administered extra copies of the sirtuin gene [to the mice], or fed them the sirtuin activator resveratrol, which in turn extended their mean lifespan by 24 to 46 percent." We discussed the plans for this research a few years ago.

Comments

Immortality is scary

[girlintraining]

I'm honestly scared of the day that they do figure out how to cure aging, because it will lead to an even greater stratification of social status and class. Most of the wealth in this country (and indeed most of the world) is concentrated with men who are over the age of 50-60 years. When they die, that wealth is then redistributed. Those people will be amongst the first to benefit from any such medical process; And if history has been any judge, that medical process will be expensive and there'll be little incentive to make it cheaper. The end result will be people who are born and work their entire lives, then die, never having had the opportunity to aquire wealth, because those who still have it aren't dying anymore.

This won't be something for humanity to celebrate. If and when the day comes, then we'll have to answer the question of what happens when numbers increase but resources decrease? And the answer will be in what kind of life is possible in that world. It won't be as good as the one you have now, I assure you.

Re:Immortality is scary

[jellomizer]

If you can say younger for 50% longer that means there is 50% more time you can work. If they say raise retirement age from 60s to 80's and at 80 you feel like you are 60 then what can happen is there is more time you can contribute to social security thus more money in the system. Also longer time where the person is benefiting to the economy and less of taking what you deserve. You are under the impression that as people gain wealth most of them will horde it. While the truth is that they will try to spend it. So if the average joe can make more when they do retire with an exptected 20-30 years of their lives they will spend it more liberally, then if they had little.

Re:Immortality is scary

[thermian]

Before they cure aging, they have to cure arthritis. What use is living to be a thousand if for 940 of those years you are immobile.

Arthritis is an interesting case, since it strikes humans after breeding age mostly, so evolution hasn't killed it off.

Re:Immortality is scary

[miracle69]

Wealth is not finite. There is more wealth in the world right now than there was 500 years ago. Wealth is a concept.

Re:Immortality is scary

[FleaPlus]

If and when the day comes, then we'll have to answer the question of what happens when numbers increase but resources decrease?

Or maybe people will finally start realizing that (especially with ever-increasing technology) economics isn't a zero-sum game.

Re:Immortality is scary

[Reality Master 101]

There is so much wrong in your post that it actually makes me weep that you're really serious.

Those people will be amongst the first to benefit from any such medical process; And if history has been any judge, that medical process will be expensive and there'll be little incentive to make it cheaper.

If history is any judge, medical processes get consistently cheaper and more widely available.

The end result will be people who are born and work their entire lives, then die, never having had the opportunity to aquire wealth, because those who still have it aren't dying anymore.

Do you seriously believe the only way to acquire wealth is to sit and wait for someone to die and have it given to you? Sheesh.

Let me tell you the easiest way to become wealthy: SAVE. That simple. Don't be a typical consumer idiot. Save 25% of your income. By the time you retire, you will be one of those rich people you think hoard all the wealth.

If and when the day comes, then we'll have to answer the question of what happens when numbers increase but resources decrease?

What makes you think immortality leads to population increases? Actually, I think it's far more likely that it will lead to a decreasing population. I doubt that immortal people will continue to crank out kids decade after decade. It's more likely that an older population of people who have "been there, done that" will be done making kids, and we'll actually have an human extinction crisis in 1,000 years.

What that means is that immorality leads to a decreasing population leading to more resources for fewer people.

Re:Immortality is scary

[n dot l]

What will happen? I can answer that in one word -- "rebellion"

Oh, please. We'd be too busy stabbing each other in the back, fighting for what little scraps they do leave us, to ever do them much harm. Much as it has always been.

What kills them in the end (because nothing can last forever) will not be a rebellion of the poor. It will be their own stupidity as they will, inevitably, become bored, complacent, decadent and distracted - random misfortune will do the rest. It won't be till the very end, when their power is already good as gone, that angry mobs storm the palace and take credit for the people's great victory.

Re:Immortality is scary

[girlintraining]

If history is any judge, medical processes get consistently cheaper and more widely available.

I'm sorry but the facts do not support this conclusion. The percentage of uninsured persons in the United States has been on the rise for some time and as of 2006 was at just over 20%. The percentage of people (workers and dependents) with employment-based health insurance has dropped from 70 percent in 1987 to 59 percent in 2006. Clearly, availability is going down. As to costs... You must not read the papers. Medicaid is about to go bankrupt due to skyrocketing health care costs.

Do you seriously believe the only way to acquire wealth is to sit and wait for someone to die and have it given to you? Sheesh.

I didn't say it was the only way. They could spend it. The majority of wealth (~70%) is owned by under 5% of the population, and given their spending habits, I just think it's far more practical to wait for them to die.

Let me tell you the easiest way to become wealthy: SAVE. That simple. Don't be a typical consumer idiot. Save 25% of your income. By the time you retire, you will be one of those rich people you think hoard all the wealth.

I thought the easiest way was being born into a rich family or winning the lottery. And as to "saving"... Honey, don't piss on my back and tell me it's raining; Most of us are living paycheck to paycheck, and we spend everything we get on basic necessities. We're not "consumer idiots" -- the technical term for people like us is fucking broke.

What makes you think immortality leads to population increases?

People live longer and they're still going to want to fuck. Heeeere's your sign.

I doubt that immortal people will continue to crank out kids decade after decade.

Funny, since most people look at having kids as their best shot at immortality.

Re:Immortality is scary

[smoker2]

Photography - Louis-Jacques-Mandé Daguerre - French
Radio - Hertz - German
TV - Paul Nipkow (mechanical) German, Karl Braun (electronic CRT) German
Phone - Antonio Meucci Italian
Car - Nicholas Joseph Cugnot (Steam) French, Alphonse Bear de Rochas (ICE otto cycle) French

The last three are derivatives of everything else, the internet is electronic communication, space flight is an extension of Von Braun (German) and the Russians were there first, and a modern understanding of physics is so vague as to be useless. But Einstein was not an American citizen until the war came and he was already 53 years old.

You're welcome - The Rest of The World.

Re:uh

[qw0ntum]

Time is not a mechanism for aging. Our bodies do not undergo "time" and age as a result. Assuming these researchers are correct, our bodies undergo some process like the one discussed here, which causes our bodies to break down in one way or the other. Time does not do the breaking down. The breaking down happens in time.

Put another way, it's not the passage of time itself that causes us to age, it's something that occurs during that passage of time, such as the process we're talking about here.

Re:it's called entropy

[qw0ntum]

I'm not arguing that life is infinitely extendable, I'm just saying time is not a mechanism by which aging occurs. To say so misrepresents time: it is not a biological process. Whatever process occurs in time would be the mechanism by which aging occurs; in your terms, the way entropy manifests itself within our bodies.