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?

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.

Retinal disorders are among the leading causes of irreversible vision loss. Doctors at AIIMS New Delhi said the growing burden of these conditions is being driven in part by diabetes, stressing the need for retinal screening to protect long-term eye health.

Speaking to HealthandMe, experts emphasized the importance of starting eye screening from the time of diabetes diagnosis.

Retinal diseases affect the retina, the light-sensitive tissue at the back of the eye. One of the most common is diabetic retinopathy.

According to the National Institute of Diabetes and Digestive and Kidney Diseases, diabetic eye disease is a group of eye problems that can affect people with diabetes. These include diabetic retinopathy, diabetic macular oedema, cataracts and glaucoma.

What Happens In Diabetic Retinopathy?

In diabetic retinopathy, high blood sugar levels damage blood vessels in the retina, causing them to swell, leak fluid or bleed.

This can lead to blurred vision, dark spots or floaters, difficulty seeing at night and distorted vision. In advanced stages, abnormal blood vessels can develop, potentially causing severe vision loss or blindness due to complications such as macular oedema or retinal detachment.

Why Is Retinal Screening A Must?

“Every person who is newly diagnosed with diabetes, especially those with type 2 diabetes, should undergo mandatory eye screening at the time of diagnosis,” said Dr. Vinod Kumar, Professor of Ophthalmology at RP Centre, AIIMS.

“Type 2 diabetes is often detected at a relatively older age, which means a person may have had diabetes for a long time without knowing it. We do not know how long they have actually had the disease. That is why newly diagnosed type 2 diabetics should undergo mandatory eye screening,” he added

For young, insulin-dependent diabetics, the expert noted that diagnosis usually occurs when insulin dependence begins, meaning they are detected earlier.

“Therefore, they are not required to undergo eye or retinal examination at the time of diagnosis. It is recommended that after five years of their diagnosis, they should undergo eye screening to check whether they have diabetic retinopathy or not,” Dr Vinod said.

Are Eye Screening And Retinal Screening The Same?

No. A general eye or vision screening is a basic check of how well a person can see, while retinal screening uses specialized digital cameras to take detailed images of the retina at the back of the eye.

Are Retinal Diseases Rising In India?

As India is the diabetic capital of the world, retinal diseases are very common, the expert said. However, many people may not realize they have vision loss due to diabetic retinopathy because the disease progresses slowly.

“Even if you do not have symptoms, you should undergo eye or retinal screening so that diabetic retinopathy can be diagnosed and appropriate steps can be taken to correct the effects of vision loss,” Dr Vinod said.

Lack Of Retinal Specialists A Concern In India

Retinal disorders are among the leading causes of irreversible vision loss in India. The growing burden of these conditions, along with gaps in the availability of retina specialists and infrastructure, highlights the need to strengthen retinal care.

According to the Vitreo-Retina Society of India (VRSI), there are around 1,700 retinologists in the country, which is inadequate to address the burden of retinal diseases.

To address the shortage of trained retinal specialists, AIIMS, in collaboration with Roche, launched a customized Retina Training Program at the National Retina Skill Development Centre.

Developed with the Roche India Healthcare Institute (RIHI), the program aims to strengthen retinal care through hands-on training, research and innovation.

“The need for strengthening retinal care capabilities is underscored by gaps in specialized expertise,” said Dr. Radhika Tandon, Chief and Professor of Ophthalmology, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS New Delhi.

The program will provide ophthalmologists with structured, hands-on training and advanced infrastructure to improve early diagnosis and appropriate management of retinal diseases.

Australia has maintained its measles elimination status since 2014, but a new report has revealed a massive gap: an estimated 1.7 million Australians may not be adequately protected against the highly contagious virus.

The update comes as measles cases linked to overseas travel continue to rise, raising concerns that infections imported from other countries could trigger outbreaks in communities where vaccination coverage is not high enough.

The study, led by the National Centre for Immunisation Research and Surveillance (NCIRS), estimated that 6.7% of Australians were susceptible to measles in 2019, leaving overall population immunity at 93.3%.

Researchers say this is around the lower end of the 93-95% level generally considered necessary to prevent sustained measles transmission.

Australia Has Measles-Vulnerable People Despite Elimination Status

When a country has elimination status of measles, it does not mean that every person in the country is immune or that the virus can infiltrate.

Instead, elimination means there is no ongoing transmission of measles within the country. Imported cases can still occur when infected people arrive from countries where the virus continues to infect the local population.

Australia has previously maintained elimination despite imported infections because vaccination has kept the virus from spreading continuously through communities. But the new analysis suggests that this protection is not evenly distributed across the population.

“While we have maintained our measles elimination status since 2014, protection isn't shared evenly across the population, and the margin for error is relatively small,” lead author Zoë Croker said.

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

Which Australians Are Most Vulnerable?

The researchers found important immunity gaps among several age groups in the country. People born from the late 1970s onwards showed increased susceptibility, with every birth group from 1977 onwards estimated to have at least 5% of people susceptible to measles.

Some of the gaps may be due to changes in Australia's vaccination programs over the years. People born between 1977 and 1983, for example, were more likely to have received only one dose of a measles-containing vaccine.

There are also younger adults who may have missed the second dose when it was introduced, while babies are naturally vulnerable because they are too young to have completed their routine vaccination schedule.

The analysis also found that people aged 15 to 35 accounted for half of all measles cases reported in Australia between 2008 and 2022.

Also read: U.S. Social Security Adds 14 Conditions To Its Compassionate Allowances; What Patients Need To Know

Experts' Take

Measles is among the most contagious infectious diseases known. That means even a relatively small immunity gap can become crucial when the virus is introduced into a susceptible community.

Australia recorded just single-digit measles cases in 2022, but notifications increased to 181 cases in 2025, with 113 cases already recorded in 2026, according to recent surveillance data.

“Even relatively small immunity gaps in communities can create opportunities for the virus to spread when cases are imported from overseas,” Croker said.

Senior author Professor Frank Beard also warned that some communities and regions could have considerably larger immunity gaps than the national average.

“What’s happened overseas is a reminder that elimination status isn’t guaranteed, it has to be actively maintained,” Beard said.

How To Prevent A Potential Infection?

Experts are urging Australians born during or after 1966, particularly those planning international travel, to check whether they have documented evidence of receiving two doses of a measles-containing vaccine.

People who cannot confirm their vaccination history are being advised to speak to their GP or immunisation provider.

AlsAs the UK is going through its fifth heatwave this summer, even corporate employees working in air-conditioned offices are facing its brunt.

Many look forward to leaving the sweltering confines of their homes for some much-needed respite in air-conditioned workplaces. But not everyone is able to find relief.

AC Becomes Must-Have For Overheated London Offices

Temperatures reached 38.1°C at Kew Gardens in west London on August 13, making it the hottest day of the year so far and one of the hottest temperatures ever recorded in the UK.

The continually high mercury has exposed a bigger problem for office workers. While some older properties do not have air conditioning, others have systems that cannot withstand high temperatures and have broken down.

Those built in the last 20 to 30 years, as most of the buildings in Mayfair, might offer only cooling units and lack adequate mechanical cooling.

But those equipped with functioning air conditioners may get comfortable inside the office, cooler air does not remove the need to stay hydrated.

Also read: US July Heat Breaks 132-Year Record: UK, France Brace For 5th Heat Wave Of 2026

Sitting In Air-Conditioned Spaces For Long Hours Raises Dehydration Risk

Dehydration is often associated with excessive sweating and not drinking enough fluids. One may never comprehend how an office worker sitting inside a cool office could ever be at the risk of getting dehydrated.

But here's a grim truth: An office worker is at a much higher risk of dehydration due to various reasons. Dehydration occurs when the body loses more fluid than it takes in. During hot weather, sweating is one of the body's main ways of getting rid of excess heat.

Air conditioning lowers the surrounding temperature, which can affect how intensely you feel the heat. But if you have already been sweating during your commute, sitting in a cool room does not automatically replace what your body has lost.

Also read: UK, France Brace for Another Heatwave: How Hot Weather Can Affect Medicines

Additionally, not drinking enough fluids could further raise the risk as thirt is not always a reliable signal.

The UK Health Security Agency advises people to drink regularly throughout hot weather rather than waiting until they feel thirsty. It also recommends replacing fluids and electrolytes when sweating heavily.

The signs and symptoms of dehydration are also easy to miss as they don't present in traditional ways with sweating, dry mouth, dizziness, and more.

In an office, it shows up in a subtle manner. For example, a dull headache that gets dismissed as a side effect of prolonged gazing at screens, trouble concentrating that gets addressed with more caffeine and fatigue that is most likely to be neglected.

How To Stay Hydrated During A Heatwave?

One of the most straightforward ways to stay hydrated in an office during heatwaves is to drink water and other fluids regularly throughout the day.

UKHSA recommends drinking more fluids than usual in hot weather and considering rehydration drinks if you are sweating heavily.

The urge to gulp down multiple cups of coffee while working is persistent. But limiting excessive caffeine and alcohol can also help as they may contribute to fluid loss.

With repeated heatwaves becoming the top highlight of British summers, staying cool and staying hydrated need to go hand in hand in order to avoid getting dehydrated.