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.

A new analysis by researchers at the Indian Council of Medical Research (ICMR) points to a mixed picture when it comes to cancer trends in India. While cases of breast cancer and oral cancer in men have been steadily rising over the years, cervical cancer has seen a sharp decline—one of the few clear positives in the data.

Cancer pattern in India

The study, published in the Journal of Public Health, looked at patterns across G20 countries over roughly two decades. Researchers used a method that helps separate the effects of ageing from broader social and behavioural changes. In simple terms, it allowed them to see whether cancer risk itself is increasing, or if higher numbers are just a result of people living longer.

For India, the rise in certain cancers is difficult to ignore. Breast cancer cases have been increasing by around 1.8 per cent each year, while oral cancer in men has gone up by about 1.2 per cent annually. These trends stand in contrast to several high-income countries, where rates have either slowed or, in some cases, begun to fall.

Why are breast cancer cases on the rise?

The reason why breast cancer cases are surging in India is not surprising - with the shift in lifestyle choices, it is almost a no-brainer. Rising obesity, sedentary lifestyle, smoking and alcohol use are some of the key contributors. Reproductive patterns, too, have changed - women are planning pregnancies later, breastfeeding for short duration and also experiencing early onset of periods. While these factors may appear insignificant individually, they collectively play a huge role in the long run.

Oral cancer in India

Oral cancer tells a different story—one that is closely tied to India’s long-standing tobacco habits. The use of smokeless tobacco and betel quid continues to be widespread, particularly among men. Alcohol adds to the risk. What makes the situation worse is that many cases are picked up late, often when the disease is already advanced. The data also shows a clear age pattern: men and women have similar rates until about 40, after which the numbers for men rise sharply.

If there is one area where India has made real progress, it is cervical cancer. The study found that incidence has been dropping by over 4 per cent each year, one of the steepest declines among the countries analysed. Experts attribute this to better awareness, improved hygiene, and gradual improvements in reproductive health services over time.

This decline offers a useful lesson. It shows that sustained public health efforts can make a difference. The recent rollout of HPV vaccination for adolescent girls could push these numbers down even further in the coming years.

Cancer diagnosis and treatment pattern in India

The ICMR report also highlights a big concern - in developed countries, cancer risk decreases with the new generation because of improved diagnosis and treatment infrastructure. However, in India, the pattern is not evident enough - risk appears high across age groups, but the diagnosis and treatment bit is not well taken care of. Lack of mortality data in India is a key concern, which makes it hard to assess how the rising numbers translate to heightened death risk. The trend is still strong enough to require immediate intervention.

Can India's rising cancer burden be curbed?

Researchers say the response cannot be one-dimensional. Expanding access to screening, especially for breast cancer, is crucial. Tobacco and alcohol control policies need to be enforced more effectively to tackle oral cancer. At the same time, the gains seen in cervical cancer underline the importance of vaccination and organised screening programmes.

India's Supreme Court has revamped guidelines for intensive care units (ICUs) across the country, and the top court has also asked all the states and Union Territories to prepare a “realistic and practical” action plan to implement the guidelines necessary as a minimum standard for intensive care units.

As per the new draft guidelines, set to be implemented from mid-May, patients who are stable and no longer need critical support will be shifted out of ICUs to wards or other care units.

The guidelines, prepared by a three-member court-appointed committee and reviewed by leading medical experts, were endorsed by the apex court as “practical, implementable, and necessary as a minimum standard for an ICU,” The Hindustan Times reported.

A bench of Justices Ahsanuddin Amanullah and R Mahadevan said copies of the guidelines should be shared with all the states and UTs.

“Moving further, as an immediate measure, let all the additional chief secretaries/secretaries … heading the department of health and medical education in the states and the UTs, convene a meeting of all experts involved in this exercise to prepare an action plan for implementation of the guidelines. Such a plan shall be realistic and practical,” the bench said in its order.

What Are The Draft Guidelines?

• The guidelines prepared by experts, including AIIMS doctor Nitish Naik, Additional Solicitor General Aishwarya Bhati, and advocate Karan Bharioke as amicus curiae, stressed that doctors’ clinical judgment should guide decisions on the level of care for each patient.

• The guidelines set minimum standards for how ICUs should function. They recommend having one nurse for every two to three patients in basic ICUs, and one nurse per patient in advanced ICUs where patients need multiple organ support, The Times of India reported.

They also call for round-the-clock monitoring by resident doctors working in shifts, under the supervision of specialists with postgraduate qualifications recognized by the National Medical Council.

• The document lists requirements for equipment such as ventilators, oxygen supply systems, patient transport facilities, and bedside utilities. It also lays down norms for infection control, fire safety, record-keeping, and regular audits, the media reports said.

• For capacity, the guidelines suggest that a basic ICU should have six to eight beds, which can be expanded to about 12 beds in hospitals handling more critical cases, depending on the services offered.

The SC bench had urged for a meeting of all concerned to discuss and prepare a final common guideline, which shall then be circulated to all states and UTs.

“A final report/blueprint/recommendation shall be prepared, which shall be placed before this court on the next date,” it said, adding that the entire exercise should be completed within three weeks.

“Let the Ministry of Health, Government of India, formally issue the guidelines placed before us today, to the states and UTs concerned by way of an advisory. A copy of it shall also be uploaded on the website of the Ministry of Health, Government of India,” the bench said, while posting the matter for further hearing on May 18.

Amid the continuously rising temperatures in India’s national capital, the Delhi government has launched several measures, from cool roofing to misting systems at bus stops, to ORS support for schoolchildren, and rest periods for construction workers, to beat the heat.

Delhi Chief Minister, Rekha Gupta, who reviewed the Heat Wave Action Plan 2026 and directed officials to ensure its strict implementation, noted that the action plan this year is more scientific and robust than in previous years.

Also Read: ICU Rules In India Set For Overhaul: SC-Backed Staff, Discharge Norms Likely from Mid-May

Heatwave in Delhi: IMD Predicts Yellow Alert

The action plan comes as the India Meteorological Department (IMD) shows no respite from heat for Delhi.

The agency has issued a yellow alert for today, with heatwave conditions likely at isolated places and maximum temperatures expected to reach 43-45°C. On Sunday, the city recorded a maximum temperature of 42 degrees Celsius, 3.1 degrees above the seasonal average.

However, very light rain is likely towards the afternoon. Partly cloudy skies and very light rain are forecast for Tuesday and Wednesday, which is expected to bring a slight drop in maximum temperatures.

Also read: Heatwave in India: Delhi Govt Issues Advisory For Schools, Urges Hydration And Reduced Outdoor Activity

Heatwave Action Plan 2026

• According to a statement issued by the CMO, the government is laying a special focus on school children and supplying ORS to them.

Schools are likely to administer an ORS solution before children leave school, if required, to reduce the risk of dehydration during their commute.

• For construction workers, strict measures will be enforced during peak heat hours. Outdoor work may be halted between 12 noon and 3 p.m. during severe heatwave conditions.

Workers will also be provided with drinking water, caps, and Gamchas coverings for protection against the sun. First-aid kits and ice packs will be made available at worksites when needed.

• The government also launched a ‘Cool Roof Policy 2026’. As part of it, reflective coating has already been applied over nearly 28,674 sq ft at the Kashmere Gate ISBT, helping reduce indoor temperatures.

High-pressure misting systems will be installed at bus stops, while anti-smog guns will be used to cool densely built-up areas.

• Further, the Heatwave Action Plan 2026 has been carried out a detailed scientific assessment of the entire city using satellite data to identify high-risk zones. The action plan will focus on “thermal hotspots”, areas that in 2025 recorded severely high temperatures. This includes

1. Ayanagar (45.5°C)
2. Najafgarh (43.7°C in 2025)
3. Safdarjung (46.8°C in 2023)

1. Sawda,
2. Mubarakpur Dabas,
3. Bhalswa,
4. Nand Nagri,
5. Gokulpuri
6. Bakkarwala.

Read: Is It Flu or Heat Stress? Delhi Doctors Report Rising Fever, Sore Throat Cases Amid Heatwave

• Departments such as the DDA, the Education Department, and the Delhi Jal Board have been asked to ensure water and shade not just for people but also for animals and birds.

• Cool rooms in Hospital

In addition, 39 Quick Response Teams and trained ASHA workers are on standby. Arrangements for cold drinking water and ORS will be made at busy public locations, including bus stops and terminals.

• The Chief Minister has also asked to implement a special priority protocol to ensure an uninterrupted 24x7 power supply to critical facilities such as hospitals, Water Treatment Plants (WTPs), and mobile towers.