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.

The US Food and Drug Administration (FDA) has issued new guidance urging veterinary drug makers to define the duration of antibiotic use in livestock.

The February 2026 guidance, published by the FDA’s Center for Veterinary Medicine (CVM), aims to mitigate the development of antimicrobial resistance and protect public health. It is consistent with previous recommendations by the federal agency that promoted the judicious use of medically important antimicrobial drugs in animals.

The FDA said that the guidance is intended for sponsors of approved new animal drug applications (NADAs) and abbreviated new animal drug applications (ANADAs) containing antimicrobial drugs.

The guidance provides recommendations on how to add duration limits to medically important antibiotics used in or on the medicated feed of food-producing animals.

"The framework outlined in this guidance is intended to facilitate voluntary changes to have all medically important antimicrobial new animal drugs administered in alignment with the principles of judicious use,” the FDA said.

"This guidance provides specific recommendations on how sponsors may facilitate changes to the approved conditions of use of affected products in support of ongoing efforts to mitigate the development of antimicrobial resistance,” it added.

The New FDA Recommendations

Currently, no limit has been set for the approved treatment in food-producing animals. As a result, farmers can use the antibiotics in animal feed for extended periods of time.

The proposed guidelines for “appropriately defined duration of use” labelling will ensure that the drug is used only when animals need it.

The regulator also called the industry to “revise the labeling to include appropriate criteria regarding when to begin and end feeding of the antimicrobial drug.”

The nonbinding guidance also suggests sponsors avoid instructions like “feed until market weight” to define the duration of use.

"The scope of this guidance is limited to those drugs that are approved for use in or on animal feed because all the approved uses of medically important antimicrobial drugs in other (non-feed) dosage forms already have appropriately defined durations of use," the FDA said.

Why Misuse of Antibiotics In Animals Is A Concern

Antibiotic use in livestock and poultry globally is intended to treat, control, and prevent bacterial infections.

However, their overuse and misuse in food-animal production threaten both animal and human health. It is because these promote the emergence and spread of antimicrobial resistance (AMR).

AMR in livestock is a major driver of the 700,000 to over 1 million annual human deaths linked to drug-resistant infections globally.

With roughly 70 per cent of global antibiotics used in agriculture, this misuse contributes to food-borne resistant pathogens and is projected to drive up to 10 million annual human deaths by 2050, as per the World Organisation for Animal Health.

FDA On Antibiotic Use In Livestock

The 2017 guidance issued by the FDA limited the over-the-counter use of medically important antibiotics on livestock.

It also required a prescription and veterinary oversight for all antibiotic use.

Later in 2018, the CVM called for all antibiotics used in the feed and drinking water of food -producing animals to have “an appropriately targeted duration of use”.

A shortage of prescription-strength co-codamol is set to continue until at least June, leaving thousands of chronic pain patients across the UK uncertain about how they will manage daily symptoms. The Scottish government has confirmed limited availability of the strongest 30/500mg tablets, while health boards warn alternative medicines may not fully cover demand.

The shortage is linked to delays in authorization by the Indian government for exporting key codeine-based ingredients needed to manufacture the drug.

Patients Told To Taper Use

Many patients say they first learned of the disruption through calls from local health services. Some have already been advised to slowly reduce their dose to avoid withdrawal symptoms.

Jocelin Harrison, who has relied on the medication for more than three decades after five spinal surgeries, said she was contacted by NHS Lanarkshire and instructed to cut down gradually.

“The only advice I’ve been given so far was to reduce the tablets and try to manage my withdrawal symptoms,” she said, as reported by the BBC.

“I was not offered any other advice or possible replacement pain killers and it’s a great worry for me and other chronic pain sufferers throughout Scotland and the UK.”

Doctors warn that abruptly stopping co-codamol can trigger headaches, nausea, sweating and a sudden increase in pain, particularly for long-term users.

Why Does This Drug Matter So Much?

Co-codamol combines paracetamol with the opioid codeine and is commonly prescribed after surgery or for persistent musculoskeletal conditions. It comes in three strengths: 8mg, 15mg and 30mg of codeine with 500mg paracetamol.

The lowest strength is available over the counter, but the stronger forms require a prescription and are widely used by patients with chronic pain. Because codeine can cause dependence, tapering rather than stopping suddenly is considered essential.

Health boards say supplies of alternative strengths are also limited, making it difficult to simply switch everyone onto another version.

Guidance issued locally states patients, except those undergoing cancer treatment, should gradually reduce usage until stopping completely. No new patients will be started on the medication until supplies stabilize.

What Are The Alternatives?

NHS Grampian has urged pharmacists to prioritize existing stock carefully. However, it stopped short of telling patients to immediately begin cutting back, highlighting variation in local guidance.

Officials acknowledge substitutes exist, but warn they cannot meet the expected rise in demand from patients switching medicines.

Authorities Now Work On Solution

Scotland’s chief pharmaceutical officer Alison Strath said the issue ultimately sits with UK-wide medicine supply systems but confirmed discussions are ongoing.

“Supply issues are expected until June 2026 and we are in regular contact with the UK government to seek assurances they are doing all they can to resolve this,” she said, adding that affected patients will be contacted directly about alternative treatment options.

The UK Department of Health and Social Care said most medicines remain readily available and manufacturers are working to restore production.

The shortage highlights the global nature of generic drug manufacturing. Medicines such as co-codamol 30/500mg are typically produced using ingredients sourced from India and China, meaning regulatory or production delays overseas can quickly affect patients at home.

For now, patients are being urged not to contact GP practices unless advised and to wait for further instructions from their health providers.

Measles Outbreak In UK: A measles outbreak has been confirmed in London's north east area, noted the BMJ. As per the medical journal, the outbreak is among the unvaccinated children. The medical journal also noted that there have been 96 laboratory confirmed cases of measles in England between January 1 to February 9, 2026 and more than a third, which is 34 cases are from Enfield. BMJ also noted that Enfield is also the area with lowest vaccination rates.

As per the data by the UK Health Security Agency or the UKHSA, only 64.3% of 5 year-olds Enfield received both doses of the measles, mumps, and rubella or the MMR vaccine in 2024 and 2025. The majority (74 of 96, 77%) of measles cases confirmed in the UK so far this year were in children aged 10 and under. Some 64% of cases have been in London, 26% in the West Midlands, and 4% in the East Midlands.

Read: Unique Symptoms Of Measles In 2026 And How Long Does The Infection Last?

Measles Outbreak In UK: Previous Cases And How It Made A Comeback

Last month, the World Health Organization revoked the United Kingdom’s measles elimination status after the virus was found to be circulating continuously for over a year.

In 2025, a child in Liverpool died after contracting measles, prompting renewed pressure on the NHS and government to address its return. England recorded 959 laboratory-confirmed cases that year. Although lower than the 2,911 cases in 2024, it still marked the highest annual total since 2012.

Vaccine uptake has steadily declined over the past 12 years. Only 84.4% of children in the UK receive both doses of the MMR vaccine by age five, far below the 95% coverage needed for herd immunity.

Why Has Measles Return To The UK?

In late 2023, measles outbreaks were reported in the UK, which led to a surge in cases in 2024. Vaccination uptake at the end of 2024 was 92% for the first dose, however, for the second dose, it was below 82%.

Dr Vanessa Saliba, consultant epidemiologist at UKHSA said, "Infections can return quickly when childhood vaccine uptake falls - measles elimination is only possible if all eligible children receive two MMRV doses before school. The NHS is making vaccination easier, including offering the second MMRV dose earlier at a new 18-month appointment to boost uptake and support elimination goals."

Read: UK Loses Measles Elimination Status: Why Is This Disease Making A Comeback?

She also noted that children and adults must get vaccinated as NHS also offers catch-up jabs.

Dr Baharat Pankhania, from the University of Exeter, as reported by the BBC said, "Measles is an infection that can be prevented by vaccine - and it's extremely concerning that in the UK we now have pockets of low or no vaccine uptake. We urgently need to remedy this situation." Pankhania also noted that there is a need to make the access to GPs easier, and for an effort that could immunize babies in their homes and counter wrong information around vaccine safety.