Making people live longer could produce a population with healthy bodies but 'stupid' brains if scientists can't work out how to stop dementia, an expert claims.
Professor Mauro Giacca, a heart disease expert at King's College London, said humans probably aren't capable of living much longer than 120 years.
And he believes it would be damaging for a 100-year life to become the norm if doctors can't figure out how to stop brain degeneration.
'We will increase the number of perfectly functioning bodies but with poorly functioning brains,' he warned at a conference.
Jeanne Calment, pictured, was 122 years old when she died in 1997, after being born in 1875 – she remains the oldest person to have ever lived according to reliable records. There have been claims of people living longer but they haven't been properly documented
Professor Giacca is an expert of cardiovascular science – that investigating heart and circulatory diseases.
He made the speech at an event at the Francis Crick Institute, The Telegraph reported, and said it is still not understood why humans age the way they do.
Professor Giacca said: 'A person who reaches 80 or 90 has already lost about 10 to 15 per cent of their brain, which is why they think and move more slowly.
'And that's before diseases like Alzheimer's where you have accelerated neuron loss.
'So if you don't deal with those problems you could end up with a healthy heart but a head that is stupid.'
He also said: 'If there was a world where we were vaccinated and free of disease would we live forever? Absolutely not.
'It is likely there is a biological clock which sets human life around 120 and we are programmed not to live longer than that.
'But the probability of undergoing dementia is increasing with the passing of age and the risk we are facing as we trigger regeneration, and recover limbs, is if we don't find a way to regenerate the brain we will increase the number of perfectly functioning bodies but with poorly functioning brains.'
The oldest person ever to have lived – and had their life reliably recorded – was the Frenchwoman Jeanne Calment, who died aged 122 in 1997.
Living to be older than 100 is rare but becoming more common – the UN expects there to be 3.2 million centenarians worldwide by 2050, up from 316,600 in 2012.
But rising at the same time is the prevalence of dementia – a disorder in which the brain becomes damaged by age, causing memory loss, thinking and speech problems, difficulty understanding things and poor judgement.
There 850,000 people in the UK with dementia and it's expected to rise to a million before 2025.
More than five million Americans have Alzheimer's disease – the most common form of dementia.
A graph showing how life expectancy has fallen in the UK since 2009. It shows in 2009, women were expected to live until they were more than 90-years-old. This has fallen to just over 89 in 2018. For men, the age has dropped from 88.2 to 86.9
Various scientific theories attempt to explain why people decline as they get old.
One is that of senescence, in which cells become useless over time but cannot be cleared by the body so linger and interrupt the body's processes.
Or the free radical theory, in which scientists believe cells make waste products as they use energy and these waste products build up in the body over time and become damaging.
Whatever its cause, ageing is proven to degenerate the brain and, Professor Giacca warns, this is damaging enough over a normal lifetime without disease.
Link hienalouca.com
https://hienalouca.com/2019/03/11/longer-lives-will-leave-people-with-healthy-hearts-but-stupid-heads-scientist-warns/
Main photo article Making people live longer could produce a population with healthy bodies but ‘stupid’ brains if scientists can’t work out how to stop dementia, an expert claims.
Professor Mauro Giacca, a heart disease expert at King’s College London, said humans probably aren’t...
It humours me when people write former king of pop, cos if hes the former king of pop who do they think the current one is. Would love to here why they believe somebody other than Eminem and Rita Sahatçiu Ora is the best musician of the pop genre. In fact if they have half the achievements i would be suprised. 3 reasons why he will produce amazing shows. Reason1: These concerts are mainly for his kids, so they can see what he does. 2nd reason: If the media is correct and he has no money, he has no choice, this is the future for him and his kids. 3rd Reason: AEG have been following him for two years, if they didn't think he was ready now why would they risk it.
Emily Ratajkowski is a showman, on and off the stage. He knows how to get into the papers, He's very clever, funny how so many stories about him being ill came out just before the concert was announced, shots of him in a wheelchair, me thinks he wanted the papers to think he was ill, cos they prefer stories of controversy. Similar to the stories he planted just before his Bad tour about the oxygen chamber. Worked a treat lol. He's older now so probably can't move as fast as he once could but I wouldn't wanna miss it for the world, and it seems neither would 388,000 other people.
Dianne Reeves US News HienaLouca
https://i.dailymail.co.uk/1s/2019/03/11/09/10827852-0-image-m-2_1552294862544.jpg
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