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Children who suffer trauma from abuse or violence early in life show biological signs of ageing faster than children who have never experienced adversity, say researchers.
The study, published in the journal Psychological Bulletin, examined three different signs of biological ageing — early puberty, cellular ageing and changes in brain structure — and found that trauma exposure was associated with all three.
“Exposure to adversity in childhood is a powerful predictor of health outcomes later in life–not only mental health outcomes like depression and anxiety but also physical health outcomes like cardiovascular disease, diabetes and cancer,” said study author Katie McLaughlin from the Harvard University in the US.
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“Our study suggests that experiencing violence can make the body age more quickly at a biological level, which may help to explain that connection,” McLaughlin added. Previous research found mixed evidence on whether childhood adversity is always linked to accelerated ageing. For the current study, the research team decided to look separately at two categories of adversity: threat-related adversity, such as abuse and violence, and deprivation-related adversity, such as physical or emotional neglect or poverty.
The researchers performed a meta-analysis of almost 80 studies, with more than 116,000 total participants. They found that children who suffered threat-related trauma such as violence or abuse were more likely to enter puberty early and also showed signs of accelerated ageing on a cellular level. However, children who experienced poverty or neglect did not show either of those signs of early ageing. In a second analysis, the team systematically reviewed 25 studies with more than 3,253 participants that examined how early-life adversity affects brain development.
They found that adversity was associated with reduced cortical thickness – a sign of ageing because the cortex thins as people age. However, different types of adversity were associated with cortical thinning in different parts of the brain. Trauma and violence were associated with thinning in the ventromedial prefrontal cortex, which is involved in social and emotional processing.
While deprivation was more often associated with thinning in the frontoparietal, default mode and visual networks, which are involved in sensory and cognitive processing.The new research underscores the need for early interventions to help avoid those consequences.
“The fact that we see such consistent evidence for faster ageing at such a young age suggests that the biological mechanisms that contribute to health disparities are set in motion very early in life,” McLaughlin said.
“This means that efforts to prevent these health disparities must also begin during childhood,” McLaughlin added. (IANS)
With the festive season on in full swing, iconic brand Johnnie Walker, is all set to re-energize the country's after-hour culture. Through its one-of-a-kind campaign #RevibeTheNight, the brand brings together beloved music artists like Divine, Ritviz, Lisa Mishra, Taba Chake along with popular indie bands like When Chai Met Toast and Mad Boy Mink, among others to perform live across iconic community spaces in India.
The collaborative effort by Johnnie Walker aims to bring back the after-hour culture through live performances across popular hotspots in India. The brand's goal is drive social regeneration in India and bring back the vibe of socializing through local music artists and reignite the trade, driving social culture by executing the live events with Covid measures in place and a limited capacity audience capacity.
The collaborative effort by Johnnie Walker aims to bring back the after-hour culture through live performances across popular hotspots in India. | Photo by Vishnu R Nair on Unsplash
Prior to the world going into lockdown, the after-hour culture in India bloomed at celebrated community hubs, that eventually became a safe-haven for individuals, a place where they found their sense of self-expression and belonging, that fuelled progress. This community was driven through the culture of live music and enthralling performances that created their very own vibe, a vibe that built extraordinary, forever-lasting relationships. Through #ReVibeTheNight, one can reconnect with this community bringing music curated by artists who have a history of captivating crowds with their one-of-a-kind live experiences. Catch the gigs and live performances for artists in these venues/cities for the live performances.
(Artiicle originally published on IANSlife) (IANS/ MBI)
Keywords: johnnie walker, social, #revibethenight, performances, community, artists, culture, festivity, begin
By Nikhila Natarajan
In a continuing study on the effects of machine learning (ML) on public conversation, Twitter has confirmed that its algorithms amplify right-leaning political content. "In six out of seven countries - all but Germany - tweets posted by accounts from the political right receive more algorithmic amplification than the political left when studied as a group," Twitter blogged.
"Right-leaning news outlets, as defined by the independent organisations, see greater algorithmic amplification on Twitter compared to left-leaning news outlets." Since 2016, Twitter users are able to choose between viewing algorithmically ordered tweets first in their home timeline or viewing the most recent tweets in reverse chronological order.
"An algorithmic home timeline displays a stream of tweets from accounts we have chosen to follow on Twitter, as well as recommendations of other content Twitter thinks we might be interested in based on accounts we interact with frequently, tweets we engage with, and more. "As a result, what we see on our timeline is a function of how we interact with Twitter's algorithmic system, as well as how the system is designed."
The new research is based on tweets of elected officials of House of Commons members in Canada, the French National Assembly, the German Bundestag, House of Representatives in Japan, Congress of Deputies of Spain, House of Commons in the UK, and official and personal accounts of House of Representatives and Senate members in the US, as well as news outlets, from April 1 to August 15, 2020.
Tweets about political content from elected officials, regardless of party or whether the party is in power, do see algorithmic amplification when compared to political content on the reverse chronological timeline. | Photo by Sara Kurfeß on Unsplash
The study was conducted by Ferenc Huszar (Twitter, University of Cambridge), Sofia Ira Ktena (now at DeepMind Technologies), Conor O'Brien (Twitter), Luca Belli (Twitter), Andrew Schlaikjer (Twitter), and Moritz Hardt (UC Berkeley).
The questions probed were:
How much algorithmic amplification does political content from elected officials receive in Twitter's algorithmically ranked Home timeline versus in the reverse chronological timeline? Does this amplification vary across political parties or within a political party?
Are some types of political groups algorithmically amplified more than others? Are these trends consistent across countries?
Are some news outlets amplified more by algorithms than others? Does news media algorithmic amplification favour one side of the political spectrum more than the other?
Tweets about political content from elected officials, regardless of party or whether the party is in power, do see algorithmic amplification when compared to political content on the reverse chronological timeline. (IANS/ MBI)
Keywords: algorithmically, timeline, algorithmic, tweets, political, survey, twitter, study, germany, skew
Even as India celebrates reaching a milestone of 100 crore Covid vaccine doses, Snapdeal co-founder and COO Rohit Bansal on Friday lauded a man who facilitated 64 registrations for the vaccine on the CoWin portal. In a video shared on his Facebook and Twitter page, Bansal hailed Sonu Kumar as a "citizen celebrity".
Bansal said that Kumar not only helped "just co-workers and family but complete strangers too. With patience, empathy and uncanny jugaad". He added that Kumar joined him "many moons ago" and completed his open school from a parking lot.
"Education has helped this wonderful man enable others to get India back on track. Bravo! The CoWin portal on Thursday mentioned that a total of 100 crore vaccine doses has been administered so far to the eligible population under the vaccination drive in India, nine months after the nationwide inoculation programme was started to protect the people against Covid-19.
"It's a cause of significant celebration and happiness," Bansal said in the video. He said that while people just help a few around them, Kumar "bridged the digital gap" for 64 people, who were finding it difficult to register themselves online on the vaccine portal. Kumar said he doesn't feel that he has contributed much towards the 100 crore vaccine dose count. "I have been able to help only 64 people, if I was able to help more I would have been happier." (IANS/ MBI)
Keywords: cowin, covid, india, people, Rohit bansal, Sonu kumar, vaccine, snapdeal, registrations