How a woman's brain will stay sharper longer

06 February, 2019, 23:14 | Author: Lillian Steele
  • Women's brains are four years younger than men's on average

Men's brains are almost four years "older" than those of females the same age, explaining why women stay sharper for longer in old age, according to new research.

"This huge amount of data" allowed the researchers "to convincingly show that, no matter how you look at it, males have more accelerated metabolic brain age (e.g., greater than their actual calendar age)", said Lockhart, who was not involved in the new study but who has researched the roles of vascular and metabolic disorders in the onset and progression of Alzheimer's disease. The researchers put data from the scans that showed how the brain uses oxygen and glucose into a computer model that was created to estimate the metabolic age of individuals' brains. In the study of more than 200 adults who underwent brain scans, the researchers looked at brain metabolism-how efficiently the brains were able to turn sugar into fuel that powers the brain.

The study was recently posted in the journal Proceedings of the National Academy of Sciences of the United States.

The findings, led by researchers from the Washington University School of Medicine in St. Louis, showed that women's brains appear to be about three years younger than men of the same chronological age, metabolically speaking.

Then, the researchers flipped their analysis: they trained the algorithm on women's data, and told it to calculate the brain ages for men. They found that on average, women's brains are 3.8 years younger than men's. "Rather, it seems that women's brains start off at a younger age when they reach adulthood, and they keep that throughout the remainder of their adulthood, basically buying them a few extra years". Similarly, the algorithm judged men's brains to be an average 2.4 years older than their actual age.

For each person, the researchers determined the fraction of sugar committed to aerobic glycolysis - that sustains brain development and maturation - in various regions of the brain.

That is based on their use of glucose, and how it is burned for energy, which can affect brain performance.

Kristaps Porzingis reportedly expresses concern with future of New York Knicks
The Knicks (10-40) have struggled without the 23-year-old Porzingis, who has been sidelined for almost a year with an ACL injury. Both played professionally in Spain before coming to the National Basketball Association as top-five picks.

More work is underway to confirm and better understand the implications of the research.

It was already known that men's brains shrink faster with age than women's, but the new results suggest their brain metabolism is different too. "Males, their blood flow to the brain decreases quite a bit as they go through puberty". "This might mean women are a little bit more resilient to certain aspects of brain aging in general, but it could also introduce certain vulnerabilities".

Goyal said that the researchers are now working on another study to test whether the findings play a role in why women don't experience as much cognitive decline as men. So they had a computer study how metabolism changed in both men and women.

Goyal and his colleagues believe that the greater youthfulness in the female brain might give a degree of resilience to aging-related changes.

As the researchers say, the extent of brain decline varies considerably between individuals. We find that throughout the adult life span the female brain has a persistently lower metabolic brain age-relative to their chronological age-compared with the male brain. But Roberta Diaz Brinton, who studies brain aging at the University of Arizona, has a more optimistic take on the results.

'What we don't know is what it means. Female's brains appeared about four years youthful, commonly.

Human brain aging is characterized by varying trajectories.


  • Trump calls for bipartisanship, a hard line on immigration

    Trump calls for bipartisanship, a hard line on immigration

    The increase is due to population growth - and not something President Trump can credit to any of his policies. Bush and Obama administrations to build fencing and other barriers that earned bipartisan support.

    Jennifer Lawrence and Cooke Maroney are engaged

    Oscar-winning actress Jennifer Lawrence is engaged to boyfriend Cooke Maroney , her representative has told U.S. media. Rumours of their engagement kicked off after Lawrence, 28, was recently spotted wearing a massive ring.
    Google Launches Password Checkup Extension to Alert Users of Data Breaches

    Google Launches Password Checkup Extension to Alert Users of Data Breaches

    For those anxious that Google will be getting a copy of all of your usernames and passwords, Google's got some good news for you. If you're one of the many people using Chrome as your main browser, it certainly seems like it's worth installing.
  • Ariana Grande not performing at The Grammys 2019

    Ariana Grande not performing at The Grammys 2019

    Grande reportedly wanted to perform her latest single, " 7 Rings ", but an insider told Variety they initially balked at that. Variety says they instead, 'offered her a spot during the show's Tom Petty tribute'.
    New Zealand vs India

    New Zealand vs India

    Besides Pant, the others who have joined the team are spin all-rounder Krunal Pandya and Punjab pacer Siddharth Kaul. After the remarkable victory in ODI series, India will look to bag the maiden T20 series as well.
    'Unprecedented' meeting between Taliban, Afghan politicians in Moscow angers Ghani

    'Unprecedented' meeting between Taliban, Afghan politicians in Moscow angers Ghani

    Despite the talks in Moscow, and a further round of US-Taliban discussions being scheduled for 25 February, violence in Afghanistan continues.
  • Brandon Ingram on 'LeBron’s gonna trade you' chants

    Brandon Ingram on 'LeBron’s gonna trade you' chants

    James appeared to be sending a message to Magic Johnson and Rob Pelinka - get something done, or I'm not trying. Ingram tallied 12 points on 4-of-8 shooting in the game.
    ‘Modern Family’ coming to an end

    ‘Modern Family’ coming to an end

    Modern Family , which has been going for 10 years, focuses on the daily lives of three different but related families . No word just yet how many episodes will be filmed for the 11th and final season.
    Russian Federation  backs talks between Venezuela's Maduro and opposition

    Russian Federation backs talks between Venezuela's Maduro and opposition

    The call came Monday from the Lima Group, which is made up of almost a dozen conservative Latin American nations and Canada. But its governing partner, the League, has backed Mr Guaido.
  • Emiliano Sala - Nantes demanding first instalment of transfer fee

    Emiliano Sala - Nantes demanding first instalment of transfer fee

    They are also "surprised" the French club have asked for a cut of the transfer fee amid a private-funded search. It is thought Nantes will begin legal action if they do not receive a payment within 10 days.
    Multiple Patriots players have no interest in visiting the White House

    Multiple Patriots players have no interest in visiting the White House

    Patriots defensive back Devin McCourty told the Associated Press on Monday that he wouldn't join the Pats on the trip. Following the game, he said he won't be joining his teammates when they visit the president during the offseason.
    The US has reduced ISIS's territory

    The US has reduced ISIS's territory

    And Chairman Kim and I will meet again on February 27 and 28 in Vietnam". Kim and Trump met for the first time in June past year in Singapore.


China trade war: United Nations warns of 'massive' impact of tariff hike
President Donald Trump had not yet decided whether to meet with Chinese President Xi Jinping on the trade dispute. The study also underlines that bilateral tariffs "do little to help domestic firms in their respective markets".

'Special place in Hell' for no plan Brexiteers: EU leader
During the press conference, Varadkar conceded that Ireland is now preparing for the "fiasco" of a no-deal Brexit . He said Britain's recent political instability was yet another proof of why the backstop was needed.

John Wall ruptures Achilles after heel surgery
Wall's four-year "supermax" contract extension will kick in next season with an annual salary starting at $37.8 million. Wall, 28, had left heel surgery days into the new year after consulting with a foot specialist.

Jennifer Lawrence engaged to art gallery director Cooke Maroney
Page Six reports the duo first sparked engagement rumors when she was spotted with a "massive ring" at a recent dinner date. The couple were spotted dining together in NY at Raoul's , with Jennifer seen showing off a "giant rock" on her finger.

Global warming is changing the color of the oceans
Phytoplankton absorb and reflect different wavelengths of sunlight, which appear as different colors . As well as changes in the blue of the oceans, we are also likely to see changes in the green.

Air crash investigators are attempting to recover body from plane wreckage
Mr Mearns - who is known as the "Shipwreck Hunter" - and his team found the plane within two hours of commencing their search. Horacio's comments come after search teams revealed a body had been spotted 200ft down on the seabed of the English channel.

Zuckerberg hits out at Facebook's critics
At that time, "multiple sources noted that messages they received from the CEO had mysteriously disappeared", The Verge reports. Participants in a group conversation receive a message saying "This message was deleted" to alert them of the change.

First Round of 2019 Oscar Presenters Announced
Audiences have dropped in recent years with the 2018 show attracting just 26.5 million viewers, the smallest number ever. Speaking of the next presenters' list, the Academy will announce the same in the coming weeks.

Grizzlies and Jazz Exploring Mike Conley-Ricky Rubio Swap
In addition, the Jazz would likely have to absorb the remaining two years and $66 million that Conley has on his current contract. Gasol can become a free agent this summer by opting out of the final year on his $25.5 million contract for 2019-2020.

The Leading Goalscorers In El Clasico History
Ousmane Dembele , who also trained after recovering from two weeks out with an ankle sprain, has not been named in the squad. Messi has scored in nine straight games in all competitions, and is the league leading scorer with 21 in 22 matches.