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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Cancer Cells Cheat Drugs, Pretends To Be Dead, To Avoid Treatment: Study

Updated Dec 15, 2025 | 08:11 AM IST

SummaryGlobal cancer cases reached nearly 20 million in 2022, with deaths nearing 10 million, WHO says. A new UC San Diego study warns some cancer cells survive treatment by activating partial cell death, later regrowing. Targeting this non genetic survival mechanism, especially enzyme DFFB, could reduce relapse and improve remission outcomes.
Cancer Cells Cheat Drugs, Pretends To Be Dead, To Avoid Treatment: Study

Credits: Canva

The World Health Organization (WHO) notes that in 2022, there were nearly 20 million new cancer case in the world. These have included lung, breast, and colorectal cancers. This has led to death of 9.7 million in the year. This means about 1 in 5 people could develop cancer in their lifestyle, and the number is rising significantly by 2050.

While there are new studies, targeted cell therapies that are now opening more doors to cancer treatments, a new study by the University of California, San Diego, could be worrisome. This new study found that some cancer cells turn on their "cell death" mode during drug therapy. So, what happens is that the drug, instead of killing them, persist and regrow in some of the case. This is how drug resistance in cancer cells functions, and by targeting this cell-death programme in cancer cells, scientists could potentially stop the growth of cancer after therapy.

The findings have been found in a peer-reviewed journal Nature Cell Biology.

Why cancer often comes back

Cancer remains one of the biggest global health threats, causing nearly 10 million deaths every year. One of the hardest parts of treating cancer is that it can return, even after treatment seems successful. Doctors call this cancer relapse or recurrence. It happens when some cancer cells survive the first round of treatment and begin growing again after a period of dormancy.

Relapse rates vary by cancer type. Lung cancer, for instance, has a higher chance of returning, while breast cancer generally has lower relapse rates. Still, one problem cuts across many cancers: drug resistance. Over time, cancer cells can learn how to survive medicines designed to kill them.

A surprising discovery during treatment

In this study, researchers set out to look for early signs of drug resistance in cancer cells. They expected to find genetic changes or mutations. Instead, they found something unexpected. Some cancer cells respond to treatment by turning into what scientists call “persister cells.”

These persister cells stop growing during therapy and enter a dormant state. At first glance, this looks like success. But what happens next is more troubling. These cells activate a built-in cell death program, the same process the body uses to break down dying cells. However, the program does not finish the job.

How cancer cells escape death

Rather than dying, these persister cells release enzymes that help them restart growth. One key enzyme involved is DNA Fragmentation Factor B, or DFFB. Normally, DFFB helps fragment DNA in cells that are meant to die. In these cancer cells, it is activated at low levels. That is not enough to kill the cell, but enough to help it escape dormancy and start growing again.

“This flips our understanding of cancer cell death on its head,” said senior author Matthew J. Hangauer. He explained that signals meant to kill cancer cells can sometimes help them survive and regrow instead.

What this means for cancer treatment

The findings offer a new way to think about drug resistance. Instead of relying on genetic mutations, cancer cells may use internal survival mechanisms to outlast treatment. This insight opens the door to new treatment strategies.

The researchers tested this idea by disabling DFFB in melanoma, lung cancer, and breast cancer models. Without the enzyme, the cancer cells stayed dormant and could not restart growth. Importantly, DFFB does not appear to be essential in normal cells, suggesting that targeting it may not cause major side effects.

As first author August F. Williams noted, focusing on these early, non-genetic survival pathways could help patients stay in remission longer and lower the risk of cancer returning.

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Highly Contagious And Hard To Kill Winter Vomiting Disease Is Spreading In The US, Here's How To Avoid It

Updated Dec 15, 2025 | 06:45 AM IST

SummaryNorovirus, known as winter vomiting disease, is spreading rapidly across the United States, with cases rising after Thanksgiving and holiday gatherings. Highly contagious and hard to kill, it causes vomiting, diarrhea, and stomach pain. Officials warn a new strain could fuel more infections and urge strict hygiene this season nationwide alerts.
Highly Contagious And Hard To Kill Winter Vomiting Disease Is Spreading In The US, Here's How To Avoid It

Credits: Canva

Winter vomiting disease cases are rising. This is highly contagious and is spreading rapidly across the United States. We are talking about norovirus. This contagious stomach flu has led to health officials raising warning for people to take extra precautions. In fact, experts say that the number of people affected could be higher, all thanks to holiday gathering season.

What makes Norovirus unique is that this virus is particularly hard to kill and many do not even realize that they are spreading it, unless it is too late.

The Centers for Disease Control and Prevention (CDC) has noted that the cases of norovirus has spiked ever since the Thanksgiving holiday. they have also noted that this particularly hard to kill virus is also known as the "winter vomiting disease".

For now cases of this winter vomiting disease have been reported from Illinois, the Midwest, and Southern California. The California Department of Public Health has also noted a rise in cases in Los Angeles and San Francisco Bay areas.

The contagious virus affects the gastrointestinal system, causes vomiting, stomach pain, and diarrhea that could last several days. The symptoms usually take 12 to 48 hours to appear after the exposure.

New Strain Of The Unique Norovirus In 2025

There has been an emergence of a new strain GII.17. This could lead to an increase of 50% more infections than this year, said the CDC. Medical experts have urged the public to stay alert and practice goof hygiene.

As per the DuPage Country Health Department's social medica awareness post, "cases of norovirus are continuing to increase". "Norovirus is very contagious, and anyone can get infected and sick," the health department wrote on Facebook.

How To Avoid Getting Sick From Winter Vomiting Disease?

Dr Suman Radhakrishna, Director of Infectious Disease at Dignity Health Medical Center, tells KTLA, "It [the virus] can stay on doorknobs and food and it’s pretty hearty. When someone ingests it or touches it and then places their hand on their mouth, they can get the virus. You don’t need a lot of the virus to get infected.”

“Whether you have the virus or not, sing the Happy Birthday [song] twice when you’re washing with soap and water, especially before you eat,” Radhakrishna advised. “Other times, the hand sanitizer works, but it doesn’t work very well for norovirus, unfortunately.”

Other practices to follow is to avoid touching your face with dirty hands, or avoid touching food or items that could have been handled or touched by other people. Disinfect any surface, which could have been contaminated.

If you already have it, the doctor suggests to seek care in the emergency room and keep drinking enough fluids. "Or let’s say, if you were lying down and when you try to sit up, you feel dizzy because you are so dehydrated, these are times when you should call your doctor, go to the emergency room or go to urgent care,” said Dr Radhakrishna.

Symptoms Of Norovirus

  • Diarrhea
  • Vomiting
  • Nausea
  • Stomach pain
  • Fever
  • Headache
  • Body aches

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Melanie Sykes Reveals She’s Living With ‘Post-Traumatic Growth’; Here’s How It Differs From PTSD

Updated Dec 14, 2025 | 03:00 PM IST

SummaryMelanie Sykes shares a health update as she speaks about post-traumatic growth while living with an autoimmune condition. The article explains what PTG means, how it differs from PTSD, and how healing and trauma can exist side by side.
melanie sykes

Credits: Canva/Melanie Sykes Instagram

Melanie Sykes has shared an encouraging health update, revealing that she is experiencing what she describes as “Post-Traumatic Growth.” On Friday, the former television presenter, 55, spoke openly on Instagram about feeling “vibrating high” after what she called moving through deep trauma. Her comments come amid an ongoing struggle with an autoimmune condition that has caused widespread inflammation and left her almost two-thirds bald.

Melanie Sykes Reveals She’s Living With ‘Post-Traumatic Growth’

In her message, Sykes reflected on how difficult periods do not last forever and introduced the idea of post-traumatic growth to her followers. She explained that it is possible to live with PTSD while also experiencing growth at the same time. “I’m in both camps,” she said, adding that people can hold pain and progress together, as long as they take care of themselves, allow space for grief, process what has happened, and then move forward in ways that bring happiness and meaning.

What Is ‘Post-Traumatic Growth’

Post-Traumatic Growth, often referred to as PTG, describes the positive psychological change that can emerge after someone has faced severe stress or trauma. Rather than simply managing or surviving the experience, people may find new depth in how they see life, feel stronger connections with others, discover fresh possibilities, or undergo spiritual or existential shifts. According to the National Institute of Health, PTG is not about bouncing back to how life was before. Instead, it reflects a deeper transformation that can take a person beyond their pre-trauma sense of self.

How Is Post Traumatic Growth Different From PTSD?

Post-Traumatic Stress Disorder, or PTSD, is marked by ongoing distress following trauma, including intrusive thoughts, avoidance, heightened alertness, and emotional suffering. PTG, on the other hand, refers to the positive psychological changes that can arise after working through trauma, such as greater appreciation for life, stronger relationships, personal strength, and shifts in belief or purpose. As noted by the National Institute of Health, the key difference lies in the outcome. PTSD is considered a mental health disorder, while PTG is a process of meaning-making and growth. Importantly, the two can exist together, with some individuals experiencing distress and growth at the same time.

At its core, PTSD reflects the painful impact of trauma, while post-traumatic growth represents the possibility of positive change that can develop through the long and often difficult path of healing, sometimes alongside or after living with PTSD.

What Condition Is Melanie Sykes Going Through?

Melanie lives with an autoimmune condition, a disorder in which the body’s immune system, meant to protect against infections, wrongly targets its own healthy cells, tissues, and organs. This immune response leads to inflammation and ongoing damage. Common autoimmune diseases include lupus, rheumatoid arthritis, and type 1 diabetes. Although there is no cure, treatment usually focuses on controlling symptoms such as fatigue, pain, and swelling and helping people manage the condition in daily life.

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