Do You Think You Have High Alcohol Tolerance? Here’s How Liquor Impacts Your Brain Activity

Updated Aug 9, 2024 | 03:00 PM IST

SummaryA recent research sheds light on social drinkers and how even moderate alcohol consumption can impact brain activity, challenging the notion that occasional drinking is harmless.
Liquor Impacting Brain Activity (Credit-Freepik)

Liquor Impacting Brain Activity (Credit-Freepik)

Many of us believe that we are great drinkers and that alcohol does not affect us as much. People who are able to drink without showing any sign of inebriation are known as social drinkers. In short, they are not addicted to alcohol but will not turn down the opportunity to have a good time! While it may seem like it doesn’t affect you, new studies suggest that it is just an illusion, even if you have high tolerance, alcohol affects your cognitive and motor functions more than you think.

The study reveals the below implications and techniques:

  • Researchers used a new MRI technique to precisely measure brain electrical activity.
  • By comparing brain scans before and after drinking, scientists identified specific areas affected by alcohol and how much brain activity slowed down.
  • Participants were chosen to be regular social drinkers without alcohol addiction, ensuring the study focused on the effects of alcohol alone.
  • MRI technology provided reliable data on brain activity changes caused by alcohol consumption.

How does the brain react to alcohol?

The human brain is a complex network of billions of neurons that communicate through electrical impulses. Brain conductivity refers to the efficiency with which these electrical signals travel through brain tissue. It's akin to the speed and clarity of a digital signal through a wire. In layman terms, your brain must function in its peak condition as it is essential for various cognitive processes, including memory, attention, decision-making, and motor control.

Think of it as the foundation for your brain's performance. When brain conductivity is high, information flows smoothly, and that helps your brain in rapid processing and response. On the other hand, low conductivity can hinder cognitive function, leading to slower thinking, impaired memory, and difficulties with coordination.

A study conducted at the Neuroscience Research Australia (NeuRA) and UNSW Science unveiled a startling connection between alcohol consumption and brain conductivity.

What is the connection between alcohol consumption and brain activity?

While many people brush off the effects of alcohol as temporary changes in behaviour, the reality is much more complex. Beyond the obvious impacts on coordination and judgment, alcohol significantly alters brain function. Alcohol dramatically slowed down brain activity, especially in areas responsible for decision-making, planning, and physical coordination. This decline was so significant that it resembled the brain changes seen in normal ageing. This means even one drink could temporarily accelerate the ageing process of your brain.

Alcohol and Brain activity: What does the study Imply?

The implications of this research are far-reaching. It provides compelling evidence that alcohol consumption has a direct and measurable impact on brain function. The discovery that alcohol can significantly reduce brain conductivity opens new avenues for understanding the neurocognitive effects of alcohol abuse and dependence. While you may not feel like alcohol is affecting you and you have a high tolerance, it most definitely changes and affects your decision-making abilities and impulse control.

Furthermore, the MRI technique employed in the study could be a valuable tool for assessing the impact of other substances on the brain and for developing interventions to mitigate alcohol-related brain damage.

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Donald Trump's Order To Change Childhood Vaccine Schedule: Which US States & Countries Have Opposed To It?

Updated Aug 13, 2026 | 09:16 PM IST

SummaryUS President Donald Trump's newly proposed vaccination schedule has been opposed by several states, who have maintained that they would be maintaining their existing plan.
Trump Orders Childhood Vaccine Changes. Which US States Are Refusing To Change Their Schedules

Credit: X

US President Donald Trump recent move of overhauling childhood vaccine recommendations has sparked debates across the globe. Several US states have opposed to it too, refusing to follow Washington’s lead.

Trump signed the executive order on August 10, calling for federal childhood vaccine recommendations to be narrowed to vaccines routinely recommended for children against 11 diseases, down from 18 at the end of 2024.

It also calls for the measles, mumps and rubella (MMR) vaccine to be given as three separate shots and says childhood vaccines should, where feasible, be administered during separate medical visits.

The order also asks states to review their school vaccination requirements. But there is an important question here: states, not the federal government, generally set vaccine requirements for children attending schools.

Which States Are Refusing To Follow Trump’s Directives?

At least 29 states and Washington, DC, had already rejected at least some federal vaccine guidance, choosing instead to rely on recommendations from medical organisations such as the American Academy of Pediatrics (AAP).

Among the states that have opposed Trump's order and maintained independent, medicine-based vaccine policies are Colorado, Maine and Washington.

Colorado has gone further by passing legislation allowing the state to rely on organisations including the AAP, American Academy of Family Physicians and American College of Obstetricians and Gynecologists when setting its childhood vaccine policy, rather than depending on federal CDC directive.

Maine has also said it will continue following guidance from established medical and public-health organisations instead of Trump's order.

Washington state officials said its school vaccine requirements have not changed for the upcoming academic year and remain based on recommendations from trusted medical and public-health experts.

This means Trump's order does not automatically change every child's vaccination schedule across the United States. The legal and political battle is likely to continue state by state.

Also read: What Trump’s Childhood Vaccine Order Means: When Will It Take Effect?

Trump's MRI Proposal Sparked Controversy

The MMR vaccine has been used as a combined vaccine for several decades. Trump’s order calls for separate measles, mumps and rubella vaccines, once they become available in the US.

Public-health experts have warned that separating vaccines could mean more appointments, higher costs and more chances for children to contract these infections as they may remain unvaccinated between doses.

The World Health Organization has also defended established immunisation schedules, saying they are based on decades of scientific evidence and proven clinical trials

The timing is particularly controversial as the US has already recorded 2,465 confirmed measles cases in 2026 as of August 6, according to the CDC.

Also read: Kennedy Announces Food Policy Reforms Under Trump’s MAHA Agenda: What Has Been Proposed?

Countries React To Trump's Vaccine Recommendation

The UK has taken a stand against Trump's newly proposed vaccine recommendation. On August 12, the UK's Medicines and Healthcare products Regulatory Agency (MHRA) reaffirmed that childhood vaccines are safe and effective and said there is no evidence that vaccines cause autism.

“The benefits of vaccination are endorsed by the NHS and all major UK public health and paediatric bodies,” said Dr Alison Cave, chief safety officer at the MHRA. She urged parents to follow NHS vaccination has an guidance.

The UK's routine schedule continues to use combination vaccines, including the six-in-one vaccine, and since January 2026 has included a universal two-dose chickenpox programme through the combined MMRV vaccine.

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Supreme Court Asks 19 States, UTs To Declare Cancer Notifiable Disease For Early Detection

Updated Aug 13, 2026 | 08:00 PM IST

SummaryThe Supreme Court has asked 19 states and Union Territories to consider declaring cancer a notifiable disease to help early detection and better outcomes.
Supreme Court Asks 19 States, UTs To Declare Cancer A Notifiable Disease For Early Detection

Credit: AI

The Supreme Court has asked 19 states and Union Territories that have not yet done so to consider declaring cancer a “notifiable disease”, stressing the need for a uniform system to report cancer cases across India.

The direction was issued on August 11 by a bench headed by Chief Justice of India Surya Kant, along with Justices Joymalya Bagchi and V Mohana, while hearing a Public Interest Litigation seeking mandatory cancer notification across the country.

The court was informed that 17 of India's 36 states and UTs have already notified cancer, following recommendations from a Parliamentary Standing Committee on Health and Family Welfare.

“Why don't you issue some mandatory guidelines for all States/UTs? There should be uniform policy,” CJI Surya Kant asked the Centre during the hearing.

The court subsequently asked the remaining states and UTs to consider the recommendations and take appropriate decisions, while also asking them to file compliance affidavits.

What Does ‘Notifiable Disease’ Mean?

A notifiable disease is a condition that healthcare providers or designated authorities are legally required to report to the government when it is diagnosed.

Unlike infectious diseases, cancer is not being considered for notification because it spreads from person to person. The purpose behind SC's recommendation is surveillance.

Mandatory reporting to the government could give health authorities a clearer picture of how many new cancer cases are being diagnosed, where they are occurring, which cancer types are increasing and which populations may be disproportionately affected.

This information can help governments take initiatives towards planning screening programmes, cancer centres, diagnostic facilities, medicines, and other healthcare resources.

Despite the encouraging move, simply making cancer notifiable will not automatically lead to earlier diagnosis and better planning for resources to treat and manage the disease.

However, more complete data can help identify gaps in screening and follow-up care and allow health programmes to be targeted more effectively.

Also read: Why Non-Smokers Too Are At High Risk Of Lung Cancer

How Could SC's Move Help In Early Cancer Detection?

The issue has been linked to alarming gaps in India's cancer surveillance system. The Parliamentary Standing Committee had recommended that cancer be made a notifiable disease to improve the accuracy of cancer incidence and mortality data.

The Committee also noted that cancer deaths can sometimes be recorded under broader causes, making it difficult to establish the true burden of cancer in the country. It recommended stronger cancer registration and a digital system for real-time data collection to anaylse the actual number of cases and their severity.

The PIL was filed by Dr Anurag Srivastava, former Head of the Department of Surgical Disciplines at AIIMS, New Delhi.

His petition states that the absence of mandatory reporting has resulted in inaccurate data and inadequate surveillance. It also proposes a centralised, real-time digital registry for cancer, similar to the CoWIN platform used during the COVID-19 pandemic.

Also read: The Office Actress Lucy Davis Reveals Incurable Stage 4 Breast Cancer: 'It’s Too Late For Chemo'

The Centre has pointed out that health is a State subject. Additional Solicitor General Anil Kaushik told the court, “Moreover, 17 states have notified the disease.”

The court's latest direction therefore puts the focus on closing the gap between states that already have mandatory notification systems and those that do not.

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BMJ Public Health Retracts Controversial COVID Vaccine Study Cited in US Senate Hearing

Updated Aug 13, 2026 | 06:04 PM IST

SummaryThe retraction notice cited “misinformation in the discussion regarding the possible causes of excess mortality” and said the paper did not sufficiently describe the limitations of the authors’ work.
BMJ Public Health Retracts Controversial COVID Vaccine Study Cited in US Senate Hearing

Credit: AI generated

British health journal BMJ Public Health has retracted a 2024 paper that suggested COVID-19 vaccination could have contributed to excess deaths during the pandemic caused by the SARS-CoV-2 virus.

Published on May 6, 2024, by researchers at the Netherlands-based Princess Máxima Centre, the paper was retracted on August 11, 2026, following concerns over its discussion of the possible causes of excess mortality.

The retraction notice cited “misinformation in the discussion regarding the possible causes of excess mortality” and said the paper did not sufficiently describe the limitations of the authors’ work.

What Did the Paper Claim?

The paper analyzed data from the “Our World in Data” database and the World Mortality Dataset to examine excess deaths during the pandemic.

It questioned whether COVID-19 containment measures and vaccination could have contributed to continued excess mortality in some regions. However, the authors did not establish a link between COVID-19 vaccines and excess deaths. Instead, they called for more data to investigate the possible causes, AFP reported.

About a month after publication, BMJ Public Health issued an expression of concern, stating that the study “does not establish any such link.”

Despite that clarification, the paper was subsequently cited by vaccine-sceptic publications as evidence of a connection between COVID-19 vaccination and excess mortality.

Paper Cited in US Senate Hearing

Even as the BMJ Group investigated the paper, Mostert, one of its original authors, had resigned from the Princess Máxima Centre.

In June 2026, she appeared before a US Senate subcommittee, where she claimed that her research had been sabotaged.

The Princess Máxima Centre had previously “emphatically” distanced itself from the publication and stated that it “strongly supports vaccination.”

The BMJ Group said the retraction was supported by two of the four authors and by the Princess Máxima Centre.

Critics Raised Concerns

Critics raised concerns about the paper’s treatment of evidence relating to vaccines, including alleged misquotes and omissions, and described parts of the discussion as inappropriate.

Ariel Karlinsky, an economist at Hebrew University in Jerusalem and co-creator of the World Mortality Dataset, repeatedly contacted the journal from June 2024 seeking a retraction.

Karlinsky said the analysis misused his data and “copied whole blocks of text and mathematical notation,” according to Retraction Watch.

Investigation Found Carelessness

The Princess Máxima Centre investigated authors Minke Huibers and Gertjan Kaspers in 2024. Mostert’s work was not examined because she was “not able to cooperate with the investigation.”

An anonymised summary of the January 2025 report was published alongside the retraction. It found no research misconduct but concluded that Kaspers and Huibers had demonstrated “carelessness, ignorance and negligence.”

The report also found that the paper gave disproportionate attention to COVID-19 measures and vaccination as possible causes of excess mortality while largely overlooking alternative explanations. It said the paper “misleadingly and unilaterally cites literature that supports its own arguments.”

Kaspers and Huibers, along with their institution, requested the paper’s retraction, citing concerns that it was being misinterpreted and could pose a public health risk. However, they disagreed with the journal’s conclusion that the paper contained misinformation.

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