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.

A 24-year-old student from West Bengal has reportedly become the first confirmed heatstroke case of the season in India’s national capital.

According to doctors at Dr Ram Manohar Lohia (RML) Hospital, the young man was admitted in critical condition after developing hyperpyrexia — an extremely high body temperature, and altered mental status while travelling by train to the national capital.

"We received our first heatstroke patient at the RML Hospital on the intervening night of May 20-21. The 24-year-old youth from West Bengal was travelling on a train when his health deteriorated,” said Dr Ajay Chauhan, Director Professor of Medicine, at RML, PTI reported.

“He was brought to the hospital in an unconscious state. We took immediate action and tried to cool down his body,” he said, adding that the boy "is admitted to the medicine ward and is still critical".

As per the doctors, the student had no known pre-existing medical condition, and other possible causes of his symptoms were ruled out before heatstroke was diagnosed.

What Is Heatstroke?

Heatstroke is the most severe form of heat-related illness and is considered a medical emergency. It occurs when the body loses its ability to regulate temperature due to prolonged exposure to extreme heat or dehydration. In most cases, body temperature rises above 104°F (40°C), which can damage the brain, heart, kidneys, and muscles.

“The general features of a patient with heat stroke are: first, his or her body temperature will be very high. It will not be around normal levels like 104, 105, or 106—it will be significantly elevated. Second, the person may be delirious, confused, or even in a state of unconsciousness or coma. The breathing will also be labored,” Dr. Naval Vikram, Professor, Department of Medicine, at the AII India Institute of Medical Sciences (AIIMS), told HealthandMe.

During a heatwave, most patients improve quickly with rest, oral fluids, cooling measures, and moving to a shaded or air-conditioned environment.

"However, if heat exposure continues and the body’s cooling mechanisms begin to fail, the condition can progress to heat stroke, which is a medical emergency. In heat stroke, body temperature often rises above 104°F," Dr. Vaibhav Mishra, Senior Director & Head, CTVS, Max Super Speciality Hospital, told HealthandMe.

What may initially appear as confusion, disorientation, or irrelevant talking can rapidly worsen into:

• altered consciousness,
• seizures,
• coma,
• death.

Heat Stroke: How Can One Prevent?

Also read: Bundibugyo Ebola Cases Rise To 600 As Scientists Investigate Spillover Event

While it may be impossible to avoid rising temperatures, the focus should be on how much you can protect yourself. Experts suggest the following measures:

• Avoiding exposure to extreme heat as much as possible.
• In case of being exposed, make sure to cover yourself—cover your head and upper body, use an umbrella, stay hydrated, and take breaks in between.
• If you have to work in a hot environment for a couple of hours, take a break in a cooler or temperature-controlled environment for at least half an hour before resuming, rather than continuously working in the heat. These steps can help prevent heat-related problems.
• If symptoms do occur, and it is heat exhaustion, take rest and avoid further activity for some time.
• In more severe cases—if someone shows symptoms like loss of consciousness or very high body temperature—they should be taken to a hospital immediately. Do not try to manage such cases at home.

What Does the IMD Say?

The India Meteorological Department (IMD) has warned of severe temperatures across several states.

"Heat wave to severe heat wave conditions likely to continue to prevail over northwest & central India during the week and over East India during the next 5 days," the IMD said, in its latest update on May 20.

It added that severe heat conditions will persist for at least the next 72 hours across Delhi-NCR, Rajasthan, Uttar Pradesh, Punjab, and Haryana. Temperatures in several cities are expected to touch 47°C to 48°C, with Banda currently emerging as the hottest place in the country.

Vitamin C boosts immunity—and we have known that for a long time now. However, this nutrient has a more crucial role to play. According to a new study from researchers at the University of Waterloo, vitamin C supplements could have a role to play in influencing chemical reactions in the digestive system that are associated with cancer development. Researchers used mathematical models to examine how this happens. Over several decades, North American diets have witnessed a steady rise in exposure to nitrites and nitrates. These are compounds found in cured meat, vegetables, and fruits that are grown in polluted soil and water.

How do nitrates and nitrites affect health?

Nitrates and nitrites play a crucial role in heart and neurological health. They also affect the stomach when it undergoes a chemical reaction known as nitrosation. This leads to the formation of certain chemicals that scientists say can increase cancer risk. Researchers said that, since the 90s, researchers have been working to understand the link between cancer and cancer-causing compounds and have only received conflicting results. The vitamin C study, however, can help explain the inconsistencies.

The team of researchers also developed a mathematical model of the stomach, plasma, salivary glands, and small intestine, and simulated how nitrates and nitrites move through your body and change over time. The researchers' model showed that, when vitamin C is present in foods like spinach and leafy greens, along with nitrates, it could work well to reduce cancer risk in the long run.

Do you need vitamin C supplements daily?

The study also found that taking vitamin C supplements regularly after every meal could have a positive impact on health. It could be effective in reducing the formation of nitrosation products that are linked to cancer risk from nitrates and dietary nitrites found in foods like salami and bacon. Researchers stated that this could help support future research. This acts as a roadmap for future clinical research, and it can help identify the key drivers of these potentially harmful chemical reactions, such as meal timing, nitrite exposure, oral microbiome activity, antioxidant intake, and gastric conditions.

The study, titled “Vitamin C as a Nitrosation Inhibitor: A Modelling Study Across Dietary Patterns and Water Quality”, is published in the Journal of Theoretical Biology.

What are the best natural sources of vitamin C?

Fruits and vegetables are the best sources of vitamin C, some of the best sources being:

1. Guava
2. Amla
3. Bell peppers
4. Kiwi
5. Oranges
6. Lemons
7. Grapefruit
8. Berries
9. Papaya
10. Green chillies

If you are looking for ways to maximise your vitamin C intake, ensure that, from the above list, foods that need cooking are only lightly steamed. Since vitamin C is heat-sensitive and water-soluble, prolonged cooking and boiling can destroy the nutrient.

The latest outbreak, caused by the Bundibugyo Ebola virus, has so far affected 600 people and has caused 139 suspected deaths, as per the latest update by the World Health Organization (WHO).

Amid increasing testing, sequencing, and clinical trial efforts to tackle the Bundibugyo Ebola virus, a new study indicates a possible new spillover event from wild animals.

The study, led by scientists from the Democratic Republic of the Congo and Uganda, released the first complete genomes of Bundibugyo Ebola virus from the May 2026 outbreak. The initial genomes reveal a new spillover event.

As of now, the index case is a nurse who fell ill on 24 April and died three days later in Bunia, the capital of Ituri province in DR Congo. But she was unlikely to have been infected by a patient, as per experts.

Genomes Suggest Fresh Spillover Event

Scott Pegan, a professor of biomedical sciences at the University of California, Riverside School of Medicine, said that, similar to the Zaire and Sudan viruses, the Bundibugyo Ebola virus is not transmitted through the air.

“The Bundibugyo virus primarily spreads through contact with infected bodily fluids,” he said, adding that “the origin of this outbreak is likely what is considered a spillover event”.

He explained that the Ebola viruses are zoonotic in nature, with their primary hosts considered to be fruit bats.

“Spillover events of human infectious diseases occur when humans encounter infected animal feces or process bushmeat from infected animals,” Pegan said.

Researchers Trace Possible Wildlife Source

“The genomes, posted on a virological website on May 17, display a distinct genetic lineage that does NOT match any previously sequenced Bundibugyo strains, suggesting a recent introduction from an animal reservoir into humans rather than sustained human-to-human transmission,” said Cheng-Yi Lee in a post on social media platform X.

Cheng-Yi added that "phylogenetic analysis shows that the new sequences form a separate cluster, supporting the inference of a fresh zoonotic spillover".

The expert stated that the most plausible source of this spillover is wildlife inhabiting the Ituri forest. He pointed out to "fruit bats or other mammals known to harbor filoviruses, which could have been implicated in earlier outbreaks through hunting or contact with infected animal tissues".

The ecological surveillance ongoing in the region will be essential to identify the exact reservoir and to mitigate the risk of future spillover events, the scientists said.

“Ebola outbreak likely from a new spillover event rather than from previously circulating virus,” added Rajeev Jayadevan, citing the study.

The Co-Chairman of the National IMA COVID Task Force & Past President, Indian Medical Association, Cochin, explained that "the virus jumps to humans from infected animals such as bats, monkeys, and apes, usually through contact with blood, body fluids, excrement, or raw meat during hunting and butchering".

The Risk Of Future Ebola Outbreaks?

Further, Pegan shared that containing the current outbreak of the Bundibugyo virus is critical because "the more the virus interfaces with humans, the greater the chance for it to move from a spillover event to a crossover one".

Symptoms To Watch For

Symptoms of Bundibugyo virus disease are similar to other forms of Ebola and include:

• Fever
• Headache
• Muscle pain
• Weakness
• Diarrhea
• Vomiting
• Stomach pain
• Unexplained bleeding or bruising, usually in later stages of illness.