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.

Most people often wrap up their day at work with a sense of stress and severe exhaustion. But if you are part of the group that experiences severe headaches after office hours, it could be because of one common habit that may be causing you discomfort — chronic stress. When the mind keeps racing all day long because of deadlines, tension, and pressure, even during breaks, it leaves behind a sense of urgency. And that sense of urgency does not mitigate or come to an end when the day ends.

Why does stress build up even after work?

Several times, there are difficult or unpleasant situations at work — it could be because of unfinished tasks and conversations that play and replay in the mind. The nervous system, therefore, gets overburdened, thereby leading to headaches. According to doctors, a lot of corporate employees experience this pain after a day at their high-pressure jobs. And while it may sound like something that is out of your control, there is something that you can do.

How to deal with chronic stress after work?

Stress inherently is not bad for you, but only if it occurs in short bursts. In that case, it can improve performance, focus, and may even prepare the body to handle challenges. Problems, however, arise when stress becomes chronic. As a result, the nervous system starts to process both pain and stress at the same time, and while one is built to be highly adaptable, stress starts to respond to external and internal factors. When the brain continues to receive signals without getting ample time for recovery, the body enters a state of prolonged alertness.

In a sensitised state, situations that would otherwise be interpreted as minor may even get ignored. This can increase heart rate and muscle tension, thereby putting the nervous system into a fight-or-flight mode. In cases of constant headaches, sensitisation can lower the pain threshold. Consequently, headaches begin and become much harder to stop. Over time, this constant activation can disrupt the body's natural balance and create an environment for headaches to worsen.

Chronic stress and migraines

Chronic stress acts as a trigger for migraines — it can even worsen the discomfort. The neurological system of people experiencing migraines is more responsive to changes in hormones, environmental factors, and sleep patterns. Constant exposure to a stressor, therefore, can drive the severity and frequency of migraines. To make matters worse, muscle tension in the shoulders, neck, and scalp can also trigger headaches. Extended periods of sustained concentration and sitting can cause headaches later in the day.

Can sleep help reduce stress headaches?

Chronic stress has a debilitating impact on sleep quality as well. People who feel persistently wired at the end of the workday struggle to fall or stay asleep. As a result, the brain fails to recover properly. Poor sleep can therefore worsen the stress cycle, leading to headaches the next day as well. The loop is difficult to break, and excessive fatigue building up over time can make you feel overwhelmed. Over time, this loop leads to a decline in productivity, focus, and the ability to solve problems.

Public health officials in South Wales, UK, have issued an alert on a localized outbreak of hepatitis A, and have urged residents to maintain hygiene as well as vaccinate children.

Cases of hepatitis A involving the same strain have been identified in three separate households in Barry, according to Public Health Wales.

The health body, in a statement, said the strain’s characteristics “suggest the infection may be spreading locally.” Investigations into the “small number” of cases are ongoing.

To curb the outbreak, the officials have also issued an urgent appeal to parents to ensure their children remain “vigilant with their handwashing.”

Those infected are “receiving appropriate care and are recovering well,” Public Health Wales said. As a precaution, close contacts of the affected individuals have also been offered vaccination.

What Is Hepatitis A?

Hepatitis A is a viral liver infection caused by the hepatitis A virus (HAV). It spreads mainly through contaminated food or water, or through close personal contact with an infected person.

The infection can lead to liver inflammation, jaundice, extreme fatigue, and stomach pain. In most cases, it is a short-term illness that clears on its own without specific treatment, although severe cases can occur. Unlike hepatitis B or C, hepatitis A does not usually cause long-term liver damage.

According to the World Health Organization (WHO), vaccination remains the most effective way to prevent infection.

Also read: Hepatitis Infections Claims 1.3 Million Lives Worldwide, India Among Top Contributors: WHO

Symptoms of Hepatitis A

Symptoms usually appear a few weeks after exposure to the virus, although some people may not develop noticeable signs. According to the Cleveland Clinic, symptoms can include:

• Persistent fatigue and weakness
• Sudden nausea, vomiting, or diarrhea
• Pain or discomfort in the upper right side of the abdomen near the liver
• Pale or clay-colored stools
• Reduced appetite
• Mild fever
• Dark-colored urine
• Joint pain
• Yellowing of the skin and eyes (jaundice)
• Severe itching

Can Hepatitis A Be Prevented?

Read More: UK Parliament Bans Smoking For People Born After 2008: Know All About It

“The best way to prevent the spread of hepatitis A is to wash hands thoroughly with soap and water. This is important after using the toilet, changing nappies, and before preparing or eating food,” said Susan Mably, Consultant in Health Protection for Public Health Wales.

Vaccination against hepatitis A is also highly effective in preventing the disease.

Doctors recommend the vaccine for:

• Children older than 12 months
• Adults at risk of exposure at home or work
• Travelers visiting regions where the virus is more common
• People with existing liver conditions

• drinking boiled or bottled water,
• avoiding food from unhygienic sources,
• peeling fruits at home and not getting pre-cut from stores.

If someone in the household is infected, cleanliness becomes even more important. Surfaces should be disinfected, food prepared carefully, and personal items not shared.

Safe sexual practices also matter, as the virus can spread through oral-anal contact. On a broader level, preventing future outbreaks requires more than short-term fixes. Improving water quality, repairing sewage systems, and strengthening public health surveillance are essential to stop the cycle from repeating.

Stroke is a medical emergency that can lead to long-term disabilities if not diagnosed in time. Yet, many do not realise that a high resting heart rate could be linked to a higher risk of stroke. Once a concern for the elderly, stroke can now occur in young people as well, and doctors say that this is a worrying trend. Now, findings from a large study indicate that a low resting heart rate could be just as bad when it comes to stroke risk, challenging the common perception that fewer heartbeats per minute guarantee good heart health. But how can you be certain of your heart rate?

Also Read: Hantavirus Outbreak Explained: WHO Confirms Evacuation of 3 Suspected Cases Amid Rising Death Toll

What do doctors say about stroke risk and heart rate?

The common idea, according to doctors, is that a higher heart rate is linked to a higher stroke risk. However, the relationship is not linear. Researchers presented the results at the European Stroke Organisation Conference. They stated that they had identified that people who were at a relatively lower risk of stroke had a heart rate between 60 and 70 beats per minute. Resting heart rate refers to the number of times the heart beats in a minute when the body is at rest, such as when sitting or lying down. The normal heart rate for adults is 60 to 100 beats per minute.

For this, researchers analysed 460,000 people in the UK Biobank, aged 40 to 69 years. Experts monitored participants for an average of 14 years and, during that time, recorded over 12,000 stroke cases. When compared with people whose heart rate was in the middle range, researchers noted that people with a heart rate of 90 had a 45 per cent higher risk of stroke. Surprisingly, people with a heart rate of less than 50 had a 25 per cent higher risk of stroke. This was even after scientists adjusted for other stroke risk factors, such as blood pressure, age, and atrial fibrillation.

Also Read: Just One Psilocybin Mushroom Use May Lead to Lasting Positive Brain Changes, Study Finds

Does low heart rate also spike stroke risk?

When the data was broken down by stroke type, a low heart rate was linked to ischaemic stroke risk, a condition caused by blocked blood circulation to the brain. It is the most common type of stroke. A higher heart rate, on the other hand, was linked to both ischaemic and haemorrhagic strokes, the latter characterised by bleeding in the brain. A low heart rate can lengthen pauses between heartbeats, reducing steady blood flow to relatively smaller brain vessels and making blockages more likely. The symptoms are:

1. Shortness of breath
2. Dizziness
3. Chest pain
4. Fainting
5. Confusion
6. Light-headedness

A higher heart rate can also increase stress on blood vessel walls, making them more prone to bleeding. However, researchers say that most of this is still hypothetical — a low heart rate could still be indicative of fitness in people who work out regularly. Doctors say that a low heart rate is a good way to measure heart disease risk. While the findings are observational, it cannot be conclusively said that a high or low heart rate can directly lead to a stroke. More research is required in this area before a conclusion can be reached.