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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US FDA Identifies New Cyclospora Outbreak As Michigan Cases Top 7,000: Why Is The Source So Hard To Trace?

Updated Jul 24, 2026 | 06:03 PM IST

SummaryAccording to the US Centers for Disease Control and Prevention (CDC), there have been 4,173 laboratory-confirmed and domestically acquired cases of cyclosporiasis across 41 states since May 1.
US FDA Identifies New Cyclospora Outbreak As Michigan Cases Top 7,000: Why Is The Source So Hard To Trace?

Credit: iStock

The US Food and Drug Administration (FDA) has identified a new Cyclospora outbreak, which is not related to ongoing outbreaks in the country causing watery diarrhea and hospitalizations among thousands.

The agency said the outbreak has sickened 72 people and is linked to an unspecified product. The FDA said the source has "not yet been identified."

The announcement comes as the US continues to report one of its largest cyclospora outbreaks. According to the US Centers for Disease Control and Prevention (CDC), there have been 4,173 laboratory-confirmed and domestically acquired cases of cyclosporiasis across 41 states since May 1.

A total of 308 people with confirmed infections have been hospitalized, but no deaths have been reported.

The CDC also reported 767 travel-associated cases during the same period, resulting in 33 hospitalizations and no deaths. These cases were linked to contaminated food or water consumed outside the US.

Lettuce-Linked Outbreak In 5 states

According to the Michigan Department of Health and Human Services, a Cyclospora outbreak linked to iceberg lettuce distributed by Taylor Farms has sickened 7,664 people across Indiana, Kentucky, Michigan, Ohio and West Virginia, with 160 hospitalizations.

Michigan has reported about 7,000 cases, while Ohio has recorded nearly 3,500 cases, according to the Toledo-Lucas County Health Department.

“I want to stress that our investigation continues, including into other potential sources and commodities for other clusters of illness,” said Kyle Diamantas, acting FDA commissioner. Meanwhile, Health and Human Services Secretary Robert F. Kennedy Jr. this week said the outbreak is “under control.”

Why Is It So Difficult To Find the Source?

Also read: Cyclospora Parasite Outbreak: Why You Should Avoid Packaged Salads and Go For Loose Greens

According to experts, Cyclospora infection caused by the parasite Cyclospora cayetanensis is much harder to trace than common foodborne bacteria such as E. coli and Salmonella.

Investigators typically use DNA fingerprinting to connect bacterial infections to contaminated food through laboratory networks such as PulseNet. However, this method is much less effective for Cyclospora because the parasite has a more complex genetic makeup, making it difficult to link infections to a single food item or supplier.

Dr. Max Teplitski, former head of the Division of Food Safety at the US Department of Agriculture and now chief science officer at the International Fresh Produce Association, said the parasite remains one of the most difficult foodborne pathogens to investigate, contributing to delays in identifying the outbreak source, CNN reported.

How To Prevent Cyclospora Infection

Read More: Cyclospora Parasite Spreads to More US States: Foods to Avoid Right Now

The CDC recommends the following steps to reduce the risk of infection:

  • Wash your hands thoroughly with soap and water before and after handling fresh produce.
  • Rinse fruits and vegetables under running water before eating, cutting or cooking them.
  • Do not rewash produce labeled "prewashed."
  • Scrub firm produce, such as melons and cucumbers, with a clean produce brush.
  • Cut away bruised or damaged portions before eating.
  • Refrigerate cut, peeled or cooked fruits and vegetables within two hours.

Cyclospora spreads through food or water contaminated with human feces and is not transmitted directly from person to person.

Dr. Darien Sutton, an emergency medicine physician and ABC News medical correspondent, emphasized that alcohol-based hand sanitizers are ineffective against the parasite. "This type of parasite doesn't easily go away with alcohol-based hand sanitizer. So, good old handwashing is really key here," Sutton said.

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Global Heatwave Crisis Grows: France Sees Excess Deaths, Japan Swelters, Camels Die In Africa

Updated Jul 24, 2026 | 05:00 PM IST

SummaryCountries including Spain, Italy, Greece, Portugal and Germany are also battling extreme heat and wildfire threats, while climate change is worsening wildfire risks in the US and Canada.
Global Heatwave Crisis Grows: France Sees Excess Deaths, Japan Swelters, Camels Die In Africa

Credit: AI generated

A relentless heatwave is sweeping across parts of Europe, Asia, and Africa, pushing temperatures to dangerous levels and triggering widespread disruptions.

While France and Japan are battling scorching conditions and issuing health alerts, extreme heat in parts of Africa has reportedly killed camels, highlighting the growing human, environmental, and economic toll of intensifying climate extremes.

In addition, countries including Spain, Italy, Greece, Portugal and Germany are also battling extreme heat and wildfire threats, while climate change is worsening wildfire risks in the US and Canada.

France Records Excess Deaths

A deadly heatwave in France in late June led to 5,764 excess deaths, according to updated data released by the country's public health agency.

The revised analysis found that 21,674 people died between June 17 and July 2, compared with the 15,910 deaths normally expected during the same period—a 36% increase in mortality.

Also read: World Brain Day: Climate Change Is Not Just Harming The Planet, It Could Also Be Affecting Your Brain

Japan Heatwave Leaves 14 Dead

Japan is also grappling with extreme temperatures. More than 450 people were taken to hospitals for heat-related illnesses in a single day in Tokyo—the highest daily figure since records began 16 years ago, emergency services said.

The update comes as the country endures a heatwave that has killed at least 14 people over the past week.

UK Issues Heat Health Alerts

The UK has issued yellow heat health alerts across central and southern England, with temperatures forecast to reach 30°C (86°F).

The UK Health Security Agency (UKHSA) warned that the heat is expected to cause minor impacts on health and social care services while increasing risks for vulnerable people. The alerts remain in effect through Sunday as parts of the country continue to experience prolonged dry weather and drought conditions.

Read More: Europe Heatwave Causes 10,000 Excess Deaths; England, Wales Record 2,700 More Fatalities

Camels Struggle To Survive Extreme Heat

Camels, long regarded as the "ships of the desert," are also struggling with extreme heat in Africa.

The BBC reported that camel shepherds in Ethiopia's Afar region have observed blisters on camels' feet, watery eyes, and skin burns caused by scorching sand.

Research from Somalia found drought-related camel mortality affected nearly 46% of camel-owning households, while another study from Algeria reported a significant rise in camel deaths during summer heatwaves.

Scientists say prolonged heat and drought cause stress, dehydration, disease, and reduce access to water and vegetation essential for camel survival.

Europe Continues to Break Heat Records

According to the Copernicus Climate Change Service (C3S), June 2026 was the hottest June ever recorded for western Europe and the second warmest globally.

The World Meteorological Organization (WMO) said the heat has continued into July, fuelling wildfires in France and the Iberian Peninsula. Spain's Fabra Observatory recorded 40.5°C on July 8, the highest temperature in more than a century of observations.

"Heatwaves like this are what we expect to see in a changing climate," said John Kennedy, head of climate information at WMO.

"In the 50 years since the historic heatwave in 1976, Europe as a whole has warmed by around two degrees. It's one of the fastest warming continents and extremes of temperature have increased too."

Why Heatwaves Are So Dangerous

Heat is often called the "silent killer," with an estimated 489,000 heat-related deaths each year between 2000 and 2019.

"Prolonged exposure over several days, particularly when temperatures remain high at night, means the body enters each new day already stressed," said Lachlan McIver, Health Advisor at the WHO-WMO Climate and Health Joint Office.

According to scientists, climate change is driving increasingly severe heatwaves. A recent study by the Potsdam Institute for Climate Impact Research found that warming ocean waters account for 50–64% of the increase in land heatwaves globally.

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R&B Singer Nivea Reveals Leukemia Diagnosis

Updated Jul 24, 2026 | 01:06 PM IST

SummaryLeukemia is the 10th most common cancer in the United States, accounting for about 3.2% of all new cancer cases.
R&B Singer Nivea Reveals Leukemia Diagnosis

Credit: Instagram

American R&B singer and songwriter Nivea has revealed that she is battling leukemia, a type of blood cancer that originates in the bone marrow, where the body produces blood cells.

The 44-year-old singer shared the news during an appearance on the Cadillac Chronicles interview series.

"I was diagnosed with leukemia earlier this year, and I am so grateful to God," she said. "I've been going through treatment and everything is going great so far. And I expect it to continue. Amen. Amen. Amen. And I'm very grateful for life. It's so cliché to say, you know, you don't know the time nor the hour, and it's true."

She said living with gratitude has helped her through the diagnosis.

"I'm definitely back into my music. I'm going to school for audio engineering. I've always wanted to learn how to engineer and mix engineer in particular. But in general, just doing all the things, honey. Loving on my children and just being grateful."

Nivea rose to prominence in the early 2000s with a string of hit singles and earned a Grammy Award nomination for "Don't Mess With My Man."

What Is Leukemia?

Also read: Nara Smith's 2-Year-Old Daughter Diagnosed With Cancer; Why Childhood Cancer Remains A Global Concern

According to the Mayo Clinic, leukemia is a cancer of the body's blood-forming tissues, including the bone marrow and the lymphatic system.

It usually affects white blood cells, which are responsible for fighting infections. In people with leukemia, the bone marrow produces excessive abnormal white blood cells that do not function properly.

Treatment for leukemia depends on the type of leukemia and other factors, but several therapies are available to help manage the disease.

Types of Leukemia

The four main types of leukemia are:

  • Acute Lymphocytic Leukemia (ALL)
  • Acute Myeloid Leukemia (AML)
  • Chronic Lymphocytic Leukemia (CLL)
  • Chronic Myeloid Leukemia (CML)

Nivea has not disclosed which type of leukemia she has.

Symptoms of Leukemia

Symptoms vary depending on the type of leukemia but commonly include:

  • Fever or chills
  • Persistent fatigue and weakness
  • Frequent or severe infections
  • Unexplained weight loss
  • Swollen lymph nodes or an enlarged liver or spleen
  • Easy bruising or bleeding
  • Recurrent nosebleeds
  • Tiny red spots on the skin (petechiae)
  • Excessive sweating, especially at night
  • Bone pain or tenderness

How Common Is Leukemia?

Leukemia is the 10th most common cancer in the United States, accounting for about 3.2% of all new cancer cases.

Globally, leukemia cases increased by 28% between 1990 and 2021, according to the Global Burden of Disease Study 2021 (GBD 2021).

An estimated 1.71 million people were living with leukemia worldwide in 2021. The disease is most commonly diagnosed in children aged 0-4 years and adults aged 70 years and older.

Who Is at Higher Risk?

While anyone can develop leukemia, certain factors may increase the risk:

  • Previous chemotherapy or radiation therapy
  • Smoking
  • Exposure to industrial chemicals such as benzene
  • Certain genetic disorders, including Down syndrome, Klinefelter syndrome, neurofibromatosis and Shwachman-Diamond syndrome
  • Family history of leukemia

Treatment Options

Treatment depends on the type of leukemia, the patient's age and overall health, and whether the cancer has spread. Common treatment options include:

  • Chemotherapy: Uses drugs to destroy cancer cells.
  • Radiation therapy: Uses high-energy radiation to kill cancer cells.
  • Immunotherapy: Helps the immune system recognize and attack cancer cells.
  • Targeted therapy: Blocks specific molecules that help leukemia cells grow.
  • Stem cell transplant: Replaces damaged bone marrow with healthy stem cells.
  • CAR T-cell therapy: A form of immunotherapy in which a patient's T cells are modified to recognize and destroy cancer cells.

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