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  #1   ^
Old Thu, Dec-06-18, 05:47
Demi's Avatar
Demi Demi is offline
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Default Live younger longer: why everything you know about ageing could be wrong

Quote:
From The Telegraph
London, UK
3 December, 2018

Live younger longer: why everything you know about ageing could be wrong

Dr Duncan Carmichael


Until recently, our knowledge about ageing well appeared straightforward: low-fat foods – with a good portion of carbohydrates and smaller helpings of proteins and fats – would help us stay healthy. We could further help ourselves by making sure we were getting enough antioxidants, from fruits, vegetables and supplements.

It seemed to work: the average age in wealthy nations has climbed gently for decades, with people now likely to reach their late 70s or early 80s, and each generation living longer than the last. Clearly, we have been doing something right. Wrong.

In 2015, for the first time since the early Nineties, life expectancy in the United States declined. It has continued to drop, with more people dying from diseases such as Alzheimer’s and diabetes, according to the Centers for Disease Control and Prevention. And it’s not just the US – something similar is happening in other rich countries. Granted, flu and pneumonia remain major culprits, but so too are the ailments of ageing: cancer, Alzheimer’s and cardiovascular issues. The obesity epidemic is at least partly responsible.

It wasn’t meant to be like this. For decades, many people followed the so-called ‘heart-healthy’ diet, cutting out saturated fats and eating cereals and whole grains.

But last year, the groundbreaking Prospective Urban and Rural Epidemiological (PURE) study - designed to examine the effects of lifestyle behaviours on the health of 135,000 people in 18 countries, over a decade - turned everything upside down. Researchers found that those who ate butter and eggs had fewer strokes and lived longer, while those who ate their cornflakes died younger.

When I started practicing medicine, 25 years ago, I truly believed that butter was bad and margarine was good. But, over the course of my career, I’ve learned that, every five years, we need to unlearn half of what we thought was true. Medicine evolves at a breathtaking pace.

I have also learned that patients generally get much more benefit from making the lifestyle changes that prevent disease, rather than taking a tablet to treat it. To stay relevant, I realised, I needed to know more than just how to tackle illness. The book Younger for Longer is a culmination of that 25-year journey and shares the secrets I have learned about how to maximise your health.

As with so much, it’s out with the old and in with the new. Two important “facts” about ageing - what we thought caused it, and how we can slow it down - have been proven wrong. And, if we heed both these things, we can switch on our longevity genes and potentially live longer.

Firstly, it is sugar and refined carbohydrates, not saturated fat, that are public enemy number one - strongly linked to obesity.

Secondly, antioxidants are not the health-hit we once hoped. Many of us have spent years consuming them, in the form of vitamin C pills or vitamin E. But it now seems this can harm us more than it helps.

In the Sixties, Dr Denham Harman explained that our cells are damaged by free radicals, and that antioxidants attack those free radicals and, in so doing, protect us. He was right, but there was a problem, because it turns out that our cells have their own powerful antioxidant system called SOD (superoxide dismutase). Taking lots of antioxidants seems to make our own SOD system lazy, which means it doesn’t do its job as well. It turns out that a better solution is to exercise every day, because that wakes up our powerful SOD system, which is a far stronger antioxidant than any supplement we could swallow.

Quote:
Tips to help you live longer

Sleep
This is the most important factor for our health. Most people need a good eight hours a night. If we don’t get our sleep right then it is very difficult to get anything else right.

Brain activities
The brain is best seen as a muscle: if we don’t use it, we lose it. Stress, lack of sleep and ageing all break brain tissue down. However, the brain is elastic and every time we practice something, we rebuild that part of it. We should do as many activities a day as possible to stimulate our grey matter: reading, crosswords, balancing, kicking a ball, dancing, swimming, singing, drawing, speaking another language. The older we are, the more we should make this a daily habit.

Exercise
Twenty minutes of intense exercise that combines weights, balance and endurance is optimal and will help stave off heart attacks, and diabetes. It will also stimulate brain development, boost the immune system, reduce stress and anxiety, and clear toxins.

Nutrition
Processed foods and sugars are bad for us: margarines, canned vegetables, canned tuna, ketchup, mayonnaise and soda drinks. For many years we had a blind spot for sugar, but the world has woken up to this toxin and governments are slowly putting pressure on industry to remove it.

Supplements
Antioxidants like vitamin C and vitamin E are no longer recommended in high doses. They may slow down our own powerful antioxidant systems, doing more harm than good. High quality fish oil and vitamin D have many benefits. But if I were to take just one supplement it would be a good quality multivitamin, three times a week. We don’t need it every day, but a Solar or Metagenics a few times a week should replace the minerals and vitamins we are not getting from our modern nutrient-poor diet.

Laugh
In 2017, my role model in the world of longevity, Dr Hinohara died. He championed the concept that we should never retire, but continue working for society - as he did until a few months before his death at 105. He was a fan of physical activity and even after the age of 100 encouraged people to climb two steps at a time. But the topic that he was fascinated with was laughter - a powerful healer, important painkiller and essential part of living younger.


We now know that exercise reduces stress, stimulates brain growth, cuts our risk of diabetes and heart attack, and maintains healthy muscles and nerves - all of which are essential for longevity. In fact, you could argue that exercise (short and intense is the latest advice) is the single most beneficial thing we could do to stay younger for longer.

Unfortunately, though, none of this new knowledge will stave off death… or might it?

For millennia, we have known our allotted time is about threescore years and ten. But many other animals we share this planet with, do things differently.

The Turritopsis dohrnii jellyfish, for instance, just five millimetres tall, never dies unless eaten. Its other name is the ‘immortal jellyfish’. While the bowhead whale - one of the largest mammals on Earth - can live to 200. Its sheer size ought to make it more prone to cancer, but it manages to dodge the disease thanks to specific genes that control its cell-division cycle and guard against it.

You might ask what relevance this has to us. The point is that we assume we will only live 70-odd years, but if we look at nature there are mechanisms that allow animals to survive far longer. Scientists hope this knowledge can one day be transferred to helping humans.

Academics have also started to look at the growing numbers of people who live to 100. They have found that many centenarians have special longevity genes, called gerontogenes.

These are not common. Scientists hope, in the future, to be able to transfer healthy gerontogenes from the lucky few to the rest of us - although to do so raises serious ethical questions about the genetic modification of humans and there’s no knowing what other effects meddling with our DNA could have on future health. It will likely be a few years before we find CRISPR capsules in our local pharmacy.

So how can you and I can go about acquiring some longevity genes right now?

In fact, many of us will already have them. The human body contains about 20,000 genes, most of which - unless needed - lie dormant.

Switching on whatever longevity genes we already have, is merely a case of living healthily. If we exercise today, and cut out sugar and starch, then we will activate them. If we lie on the sofa all day tomorrow, and eat pizza and chips, then we will likely turn them off. So if we want to consistently fire up our longevity genes then healthy living needs to be a daily way of life.

My grandfather grew up in Edinburgh, survived two world wars and made it healthily into his 90s. He taught me a lot, but probably his biggest lesson was not to take anything too seriously. Stress can switch off our healthy genes and his jovial approach to life probably kept many of his switched on. This may have been why, at the age of 91 he was still a menacing bowler in our back garden cricket matches.

In Britain today, one baby in three will reach their 100th birthday. Encouraging though that is, living longer is not a given for everyone, and populations could continue to die younger if governments and people fail to embrace what research is teaching us about health and ageing.

But there are things we can each do on a personal level to die “young” as late as possible; to reach 100 in good health. The good news is that living younger for longer is easier than many of us think.



Younger for Longer : How You Can Slow the Ageing Process and Stay Healthy for Life by Dr Duncan Carmichael

https://www.amazon.co.uk/Younger-Lo.../dp/B07DNDXYN5/

https://www.amazon.com/Younger-Long.../dp/B07DNDXYN5/






https://www.telegraph.co.uk/health-...ng-could-wrong/
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  #2   ^
Old Thu, Dec-06-18, 09:55
mike_d's Avatar
mike_d mike_d is offline
Grease is the word!
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Plan: PSMF/IF
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Default

They left out the benefits of fasting, telomerase* and telomere length.

The Red Sea urchin can live 200 years. Its telomeres retain their length. A telomere is a region of repetitive nucleotide sequences at each end of a chromosome, which protects the end of the chromosome from deterioration or from fusion with neighboring chromosomes or mutation. Every time a cell divides its telomeres get shorter, then division stops around 50 cycles and the cell becomes senescent. Fasting can rid the body of these, and some precancerous cells too.
Quote:
The human body contains about 20,000 genes, most of which - unless needed - lie dormant.
True, that's epigenetics: we have the genes for wings, but cannot fly

*Telomerase is a cellular reverse transcriptase that synthesizes telomeric repeats de novo at chromosome ends.

"Healthspan" and "Lifespan" are two totally different things!

Last edited by mike_d : Thu, Dec-06-18 at 10:07.
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  #3   ^
Old Thu, Dec-06-18, 13:56
Ms Arielle's Avatar
Ms Arielle Ms Arielle is offline
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Plan: atkins, carnivore 2023
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Default

Im all for HEALTH SPAN.... and FLYING!!
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  #4   ^
Old Thu, Dec-06-18, 19:40
mike_d's Avatar
mike_d mike_d is offline
Grease is the word!
Posts: 8,475
 
Plan: PSMF/IF
Stats: 236/181/180 Male 72 inches
BF:disappearing!
Progress: 98%
Location: Alamo city, Texas
Default

Quote:
Originally Posted by Ms Arielle
Im all for HEALTH SPAN.... and FLYING!!
Just don't fly too close to the Sun
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  #5   ^
Old Fri, Dec-07-18, 12:37
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WereBear WereBear is offline
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Plan: EpiPaleo/Primal/LowOx
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Default

It's not just getting to 100. It's having a good time on the journey.
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  #6   ^
Old Fri, Dec-07-18, 13:04
Ms Arielle's Avatar
Ms Arielle Ms Arielle is offline
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Plan: atkins, carnivore 2023
Stats: 200/211/163 Female 5'8"
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Progress: -30%
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Quote:
Originally Posted by mike_d
Just don't fly too close to the Sun


I would be happy flying with my ducks. They are a happy bunch that wagg their tails like a dog!
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  #7   ^
Old Fri, Dec-07-18, 16:32
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GRB5111 GRB5111 is offline
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Plan: Very LC, Higher Protein
Stats: 227/186/185 Male 6' 0"
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Default

This video is very enjoyable and on point with the topic:

https://www.youtube.com/watch?v=vEfXK3D8vGc
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