Smokers who make the decision to quit will experience immediate health benefits, including a rapid reduction in their risk of atrial fibrillation (A-Fib), according to new research published in JACC: Clinical Electrophysiology. The study, conducted by Dr. Gregory Marcus, a cardiologist at the University of California, San Francisco, offers compelling evidence for smokers to quit, showing that it’s never too late to avoid the damaging effects of smoking on heart health.

Dr. Marcus, the senior author of the study, emphasized that A-Fib can be prevented even in individuals who have smoked for years. "The findings provide a compelling new reason to show current smokers that it’s not too late to quit, and that having smoked in the past doesn’t mean you’re ‘destined’ to develop A-Fib," Marcus explained. "Even for the current and longtime smoker, A-Fib can still be avoided."

What is Atrial Fibrillation (A-Fib)?

"There’s strong evidence that smoking increases the risk of A-Fib," Marcus said. "But the benefits of quitting smoking have been less certain." With this in mind, his team sought to determine whether quitting could significantly lower a person’s risk of developing A-Fib, or if the risk would remain the same.

The research team analyzed data from over 146,700 current and former smokers, tracking their smoking habits and health over a 12-year period using data from the UK Biobank database. The results were promising: former smokers had a 13% lower risk of developing A-Fib compared to current smokers, while those who quit during the study saw an 18% reduction in their risk.

"This is likely a testament to the potency of reducing atrial fibrillation risk pretty shortly after quitting," Marcus said in a statement from the American College of Cardiology.

The findings highlight the importance of quitting smoking, not only for general health but specifically for reducing the risk of serious heart conditions like A-Fib.

Tips for Quitting Smoking

Quitting smoking is one of the most effective ways to lower the risk of A-Fib and improve overall heart health. While it can be challenging, the benefits of quitting are clear and immediate. Here are some tips to help you quit smoking successfully:

1. Choose a specific date to quit smoking and stick to it. Prepare yourself mentally and physically for this change.

2. Reach out to family, friends, or a support group to help keep you accountable. Sharing your goals with others can provide encouragement.

3. Options like nicotine patches, gum, or lozenges can help ease withdrawal symptoms and reduce cravings.

4. Identify situations that make you want to smoke, such as stress or social gatherings, and find healthy ways to cope with them.

5. Regular exercise can help distract you from cravings and improve your mood during the quitting process.

6. Drinking water can help flush nicotine out of your system faster, reducing cravings.

7. Activities like yoga, meditation, or deep breathing exercises can help manage stress, a common trigger for smoking.

Quitting smoking offers immediate and significant benefits, particularly in reducing the risk of atrial fibrillation. The latest research provides smokers with more motivation to quit, showing that it's never too late to take control of their heart health.

Health officials in Australia have confirmed a third case of the deadly H5 bird flu in a migratory bird on Australia's southern coast, taking the total number of cases to three. The first two cases were reported in Western Australia.

The third case of avian influenza was recorded in a giant petrel found at Knights Beach on the Fleurieu Peninsula.

According to South Australian Premier Peter Malinauskas, the state recorded two sick birds that came into the care of a local wildlife rescue group on June 14, ABC News reported.

"Once that was drawn to the attention on June 19 to the relevant authorities in South Australia, we responded quickly and enabled and facilitated active testing of those birds for H5 bird flu," the premier said.

"This afternoon we received those results and they confirmed that one of those birds was negative and one of them was positive."

He also stressed the cases have no connection, as it involved a migratory bird.

"It's also important to emphasize that this is a migratory bird. This is not a contamination or infection that has come from WA to SA."

Further, Malinauskas noted that the volunteers who handled the birds would be given anti-viral medication if necessary.

He urged people who see unwell or dead birdlife to "avoid, record and report" via hotline 1800 675 888.

Also read: France Confirms First Ebola Case; Congo Outbreak Grows to 1,094 Cases, 277 Deaths

Malinauskas said two other sick birds found at Fowlers Bay yesterday had tested negative for the virus.

It comes after two birds were confirmed to have the disease near the town of Esperance in Western Australia.

The country's Chief Veterinary Officer, Dr Beth Cookson, said there was no indication it had spread from those two birds.

Genomic sequencing shows the virus in that initial bird — a brown skua — is related to an outbreak on Heard Island and McDonald Islands.

Why Australia Had Remained Bird Flu-Free

Until now, Australia was the only continent where the H5N1 strain, the highly contagious strain of H5 bird flu, had not been detected. Although the virus has circulated across Asia since the 1990s and reached Antarctica in 2024, Australia had remained unaffected.

According to Dr Michelle Wille, ARC Future Fellow at the University of Melbourne, Australia's unique bird migration patterns likely delayed the virus's arrival.

"There are no duck species which routinely migrate between Australia and Asia, nor are there ducks that migrate through Antarctica," Wille wrote in The Conversation.

However, evidence suggests other seabirds—including gulls, skuas and giant petrels—may have helped carry the virus over long distances across Antarctica and subantarctic regions, eventually bringing it closer to Australia, he said.

As per the latest update, Australian scientists believe that the H5 bird flu strain killed more than 13,000 elephant seal pups after infecting a breeding colony on the remote Heard and McDonald Islands, one of Australia's external territories in the sub-Antarctic.

Read More: Sri Lanka Dengue Outbreak Nears 50,000 Cases: Prevention Tips You Need to Know

Can Bird Flu Affect Humans?

Despite the rise in cases, Agricultural Minister Julie Collins assured the public that there is no immediate threat to human health.

"Chicken meat and eggs remain safe for consumption when properly prepared," she noted.

While human infections remain rare, they can occur through direct and unprotected contact with infected birds, animals, or contaminated environments.

Although severe human cases have historically shown a mortality rate of around 50%, sustained human-to-human transmission has not been observed.

How to Protect Yourself

Health authorities recommend the following precautions:

• Avoid direct contact with sick or dead wild birds and other animals whenever possible.
• Observe wildlife from a safe distance.
• Wear appropriate personal protective equipment (PPE) if handling sick or dead birds or animals is unavoidable.
• Avoid touching surfaces contaminated with bird droppings, saliva, mucus, litter, or bedding from infected or suspected animals.
• Do not consume raw milk or raw milk products, particularly from animals suspected or confirmed to be infected with avian influenza.
• Report sick or dead birds to local authorities if encountered.

French health officials have confirmed the first positive Ebola case in a doctor returning from a humanitarian mission in Congo.

It is the country's first case of the virus during the current outbreak, and the first in Europe. It is also the first case outside Africa in the 2026 outbreak.

The health ministry "confirms today the identification of a first positive case of Ebola virus disease on national territory", it said.

The patient, identified in mainland France, is being isolated and authorities are conducting contact tracing, the ministry said, adding that the risk to the general European population was low, AFP reported.

Congo Outbreak Reaches Record First-Month Total

Also read: 'Omega Block' Causing Europe Heatwave; France Worst Hit

The confirmed cases in the Ebola outbreak in the Democratic Republic of Congo have reached the highest total ever recorded during the first month of an outbreak in Africa, according to the World Health Organization (WHO).

As of June 22, confirmed Ebola cases in Congo had risen to 1,094 and deaths to 277, according to the DRC Ministry of Health. The WHO raised concerns about the rapid spread of the deadly virus and the challenges facing containment efforts.

“This is the largest number of confirmed cases in the first month of an Ebola disease outbreak in Africa,” said Dr Abdirahman Mahamud, Director, Health Emergency Alert and Response Operations at WHO, during a press briefing in Geneva.

"What is important is we need to scale up and this outbreak is moving faster than us," he told reporters after returning from Bunia last week.

Signs of Progress Amid Challenges

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Mahamud also noted signs of hope, highlighting a quick increase in the number of Ebola beds to over 500 in the past fortnight and signs that community resistance and violent resistance to Ebola responders was beginning to abate.

Taking to social media platform X, Dr Tedros shared that “100 patients have recovered so far, which shows that for many, the virus can be stopped with timely health care”.

He also lauded efforts being made to “increase the number of Ebola Treatment Centres and lab and surveillance capacities, to train more health workers on clinical care and infection prevention and control, and to improve the understanding and involvement of communities”.

However, he highlighted the need to do more.

"More treatment centers, more trained health and care workers, more testing, more teams from within communities supporting communities. We need sustained and safe access to reach all affected people”.

US Supports Experimental Treatment Trials

Meanwhile, the US has provided doses of an experimental antibody drug from Mapp Biopharmaceutical for use in clinical trials to fight the widening Ebola outbreak in Congo, a Department of Health and Human Services spokesperson said, a shift from its position of making the drug available only to Americans, Reuters reported.

While the spokesperson declined to comment on the number of doses, it said that the drug is being made available for compassionate use in Congo as well as to advance a clinical trial in the outbreak region.

There are currently no approved vaccines or treatments for the Bundibugyo strain of Ebola.

This marks the first time the US government has indicated it plans to directly support clinical trials of the antibody treatment known as MBP134 from San Diego-based Mapp by providing stockpiled doses.

The Mapp drug is expected to be among the first treatments to be tested in the outbreak.

Trials of the Mapp drug and two Gilead Sciences antivirals are due to begin in the coming weeks, according to the WHO and scientists involved in the testing, the report said.

Europe is reeling under an intense heatwave, causing schools to shut, triggering red alerts across France, Spain, Italy and the United Kingdom, and killing dozens of people.

The heatwave has also forced the early closure of major Paris tourist attractions, including the Eiffel Tower and the Louvre Museum.

According to meteorologists, the soaring temperatures are being driven by a weather pattern known as an "omega block".

What Is An Omega Block?

Also read: ‘Heat Dome’ Triggering Record-Breaking May Temperatures In France, UK, Spain

An omega block is a large-scale atmospheric pattern named after the Greek letter Omega (Ω) because of its distinctive shape.

The pattern develops when a strong area of high pressure becomes locked between two low-pressure systems. Normally, the jet stream — a fast-moving current of air high in the atmosphere — pushes weather systems across Europe from west to east.

During an omega block, the jet stream bends into a stagnant pattern, causing weather systems to stall.

This blocks cooler Atlantic air from entering the region while drawing hot air northward from North Africa and the Sahara. The persistent high-pressure system acts like a lid, trapping heat near the ground and allowing temperatures to climb steadily over several days.

“This is high pressure over the UK, home-grown, and hot air coming in from the Continent, which is going into its own heatwave,” said Jim Dale, meteorologist at British Weather Services and co-author of Surviving Extreme Weather, The Telegraph reported.

Meanwhile, the UK Met Office has warned that parts of England and Wales could threaten Britain's June temperature record of 35.6°C, set in Southampton in 1976, as the plume of hot air moves north and west.

Read More: WHO Sounds Alarm on Europe's Extreme Heat: Here's How Hot It Could Get Across Countries

Why France Is The Worst Hit

Parts of France, Spain and other regions of Western Europe have recorded temperatures above 40°C.

As per the forecast, the heat dome is centered over France, explaining why the country has been hit harder than its neighbors.

France endured its hottest night ever recorded from Monday to Tuesday, according to Météo-France.

“The heart of the hottest part of this system is screwed down over France, even if it spills over a little into neighboring countries,” Christophe Mertz, a meteorologist at MétéoNews, told French Daily La Montagne,

“The phenomenon is maximal over our country”.

How Long Can An Omega Block Last?

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As per the experts, Omega blocks typically persist for three to 10 days, but in some cases, they can remain in place for several weeks.

Because the pattern moves very slowly, affected regions can experience prolonged periods of extreme heat, drought, or, depending on the season, cold spells.

Omega Block: The Role Of Climate Change

Experts say climate change is intensifying the heat associated with omega blocks.

Europe is now experiencing heatwaves that are 2 to 4 degrees hotter than they would have been without human-caused warming, according to Clair Barnes, a research associate in extreme weather and climate at Imperial College London, Reuters reported.

The United Nations has also warned that such episodes are no longer freak events but a sign of man-made climate change.

Antonio Guterres, the UN’s secretary-general, on June 23 urged the world to act with “far greater urgency” to limit global warming.

“On the surface, these crises may seem separate. But they share the same destructive origin: fossil fuels,” he told London Climate Action Week.

This early summer’s June omega block is the second major heatwave to strike Europe in two months. As per scientists, a warming world will drive such events earlier in spring, which will linger later into autumn, and become severe each time they come.