The National Capital Region (NCR) has seen a spike in the Air Quality Index (AQI) post-Diwali. Several places in Delhi recorded AQI in the "very poor" category, while Anand Vihar recorded "severe", and crossed the 500 mark on the AQI meter. Sahibabad in Ghaziabad also recorded "very severe", touching the 500 mark. These AQI levels are reported as of November 5, (Tuesday), 9 am.
Gurugram recorded 484 "severe", Faridabad at 315 "very poor", Hauz Khas at 398 "very poor", Vasant Kunj at 439 "severe", Old Delhi at 312 "very poor", Burari at 451 "severe, parts of Noida (Sector 5) at 291 "poor", and Connaught Place at 369 "very poor".
While we all know that air pollution is linked with several respiratory diseases, a new research also suggests that it may be linked to rising obesity rates. As per a 2021 study titled Effect of Air Pollution on Obesity in Children: A systematic Review and Meta-Analysis, there is a connection between air pollution and weight gain through biological behavioral mechanism. The major pollutants causing obesity are nitrous oxides, nitrogen dioxide, ozone, and particulate matter.
These could lead to systematic inflammation and metabolic disturbances, which can lead to weight gain and obesity. The study mentions that fine particulate matter [PM2.5], when it enters our body, it influences the metabolism rates.
The 2021 study also revealed that increase in air pollution, and road traffic noise was also associated with childhood obesity.
Another 2011 study titled The influence of air pollution on cardiovascular and pulmonary function and exercise capacity: Canadian Health Measures Survey (CHMS), found that air pollutants may indirectly impact body weight by raising the risk of chronic conditions like blood pressure, heart diseases or lung diseases. "Exposure to higher concentrations of air pollution was associated with higher resting blood pressure and lower ventilatory function. Ozone was associated with reduced exercise capacity," researchers of the study wrote.
The latest study published in 2024 titled The association between air pollution and obesity: an umbrella review of meta-analyses and systematic reviews, found that air pollution can impact metabolic function by influencing inflammation in fat tissue. It leads to an increase in oxidative stress and alters one's dietary habits.
In fact, pollution can also lead to gynaecological issues, said Dr Anuradha Kapur, Principal Director (Obstetrics & Gynaecology) and Head of Unit, Max Smart Super Speciality Hospital, Saket. "Environmental pollutants, such as pesticides and microplastics, can affect reproductive health and hormone regulation, potentially impacting menstrual cycles," she said.
Dr Sonam Simpatwar, Gynaecologist with a diploma in reproductive medicine, practising at Central Railway Hospital, Mumbai further explained how pollutants impact women's health:
Endocrine Disruptors: Chemicals found in pollution, plastics, and pesticides can mimic or interfere with hormones, potentially affecting menstrual cycles.
Climate Change: Rising temperatures, extreme weather events, and changes in water quality can impact food production, nutrition, and overall health, which can indirectly affect menstrual health.
Stress: Environmental stressors, such as pollution and climate change, can lead to increased stress, which is known to influence menstrual cycles.
"It's important to note that these are potential factors, and more research is needed to fully understand their impact on menstrual health," she said.
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Your eyes could be giving you clues that your kidneys aren’t working the way they should. While most people associate kidney trouble with tiredness, swelling, or changes in urination, the effects can also show up in your vision. To understand this better, we spoke with Dr Manoj K. Singhal, Principal Director of Nephrology and Kidney Transplantation at Max Super Speciality Hospital, Vaishali.
The kidneys filter toxins and help maintain balance in the body. But when they start to weaken, some of the earliest signs may appear in unexpected places, like your eyes. Some of these symptoms, as per Dr Manoj are:
It’s normal to wake up with puffy eyes, but if the swelling doesn’t fade even after rest, it could point to protein leaking into your urine, a condition called proteinuria, which often signals kidney damage.
Sudden blurriness may be tied to high blood pressure or diabetes—two major causes of kidney problems. These conditions damage small blood vessels in the eyes and can even lead to sudden vision loss.
Many people with chronic kidney disease, especially those on dialysis, experience dryness or irritation in the eyes. This happens when mineral balance in the body is disrupted, leaving the eyes feeling gritty or uncomfortable.
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4. Red or Bloodshot Eyes
Frequent redness can be a warning sign of uncontrolled blood pressure or diabetes. In some rare cases, kidney-related conditions like lupus nephritis can also cause eye problems.
Kidney disease can sometimes affect the optic nerve or retina, making it harder to distinguish certain colours, especially shades of blue and yellow.
Not every eye problem points to kidney disease, but if these symptoms persist or worsen, it’s worth getting both your vision and kidney health checked. Routine eye exams can sometimes reveal early warning signs before bigger problems develop.
If you notice changes in your eyesight alongside other symptoms like fatigue, swelling, or urinary changes, don’t ignore them. Catching kidney issues early can make all the difference for both your eye health and your overall well-being.
How To Protect Your Kidneys and Eyes
While some kidney issues are unavoidable, there are steps you can take to reduce your risk and protect both your kidney and eye health, as suggested by Dr Manoj:
Taking care of your overall health is the best way to safeguard your kidneys. and your eyes from long-term damage.
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Suicides are one of the leading causes of death around the world. While it is easy to say that the person who chose to take their lives did it of their own violation, Harvard psychologist Dr. Matthew Nock, explains the other side. “90% of people who try and kill themselves say, I didn't want to die per se. I wanted to escape from seemingly intolerable.” Speaking on the On Purpose podcast with Jay Shetty, Dr. Nock pointed out that the link between work pressure and suicidal thoughts varies by race and ethnicity.
The concerning rise in suicide cases tied to work pressure has fueled a social media conversation about toxic work culture. What was once considered a normal part of the professional grind is now being openly challenged, as people share personal stories of the anxiety, depression, and isolation caused by unhealthy work environments.
According to Dr. Matthew Nock, certain careers are linked to a higher risk of suicide.
He noted that physicians and police officers are among those at high risk. He mentioned a spike in suicides among New York City police officers, who are predominantly white men, and shared that female police officers, in particular, face a higher risk, even when accounting for factors like age, race, and ethnicity.
According to a 2025 study published in the Police Practice and Research, on average, 21.4 out of every 100,000 officers died by suicide each year.
The study showed that the suicide rate was much higher for male officers (22.7 per 100,000) than for female officers (12.7 per 100,000).
Dr. Nock explained that access to means is a significant factor in these high-risk professions, which helps explain why physicians, police officers, and military members have a much higher risk of suicide compared to others.
Another study published in 2024 The BMJ, showed that the number of suicides among doctors has been going down, female doctors are still at a much higher risk than other people.
When looking at all the data, male doctors were found to have a 5% higher risk of suicide compared to the general population.
In a more recent analysis of the last few years, the overall suicide rate for doctors has decreased, which is good news. But even with this improvement, female doctors still have a 24% higher risk than the general public.
Dr. Nock stresses the importance of openly discussing suicide, particularly in schools. He compared it to fire drills or earthquake preparedness, saying that since 15% of people will experience suicidal thoughts, it's crucial to equip everyone with a safety plan..Dr. Matthew Nock said, "We know that asking about suicide, talking about suicide, does not make people suicidal."
He noted that the people who act on suicidal thoughts often show different signs than those who just have the thoughts. While depression is a strong predictor of having suicidal thoughts, other factors like anxiety, aggressiveness, poor behavioral control, and drug or alcohol use are more closely linked to a person actually attempting suicide.
He believes that a small educational module on suicide in health class could help save lives by teaching people what to do if they or someone they know is struggling.
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While we all know air pollution affects our health, did you know that it was actually driving cancer cases higher? This has led to a big rise in health problems worldwide. Past studies show that air pollution is linked to about seven million premature deaths each year and contributes to over 3% of all years of healthy life lost globally. This revelation was a big concern for public health, and to fix it, many measures were taken.
While some countries like the US showed promising results in bettering public health, a recent study in the International Journal of Public Health showed that this positive trend is not yet showed up in China.
One of the most dangerous types of air pollution is called fine particulate matter, or PM2.5. These tiny particles come from car exhaust, factory smoke, and even from the smoke created by burning solid fuels inside homes. Because they are so incredibly small, they can stay suspended in the air for a long time and, when we breathe them in, they go deep into our lungs.
Once inside the body, PM2.5 can cause inflammation and even change our genes, which increases our risk for many illnesses, especially tracheal, bronchial, and lung (TBL) cancers. A new study looked at how much PM2.5 pollution has affected TBL cancer rates in China, Japan, South Korea, and the United States from 1990 to 2021.
The study, which used data from the Global Burden of Disease (GBD) project, found some important trends:
The good news is that globally, the number of deaths and years of healthy life lost due to TBL cancer linked to PM2.5 pollution are going down. This positive trend was consistent in all the countries studied: China, Japan, South Korea, and the U.S.
Despite this global trend, China faced a much higher death rate from TBL cancer linked to PM2.5 compared to the other three countries. While their rates are decreasing, they still remain significantly higher than the worldwide average.
The research also looked at pollution from burning solid fuels inside homes. The global death rate from TBL cancer linked to this type of pollution has remained stable, but it's actually increasing for women while it's decreasing for men. This highlights a specific danger for women in homes that rely on these fuels.
Looking ahead, researchers predict that the global death rate for TBL cancer caused by PM2.5 will actually increase over the next 29 years. However, the study notes that countries like China, South Korea, and the U.S. are expected to see a significant drop in their rates, while Japan's numbers are expected to stay about the same.
Overall, this study shows that while air pollution is a serious global health risk, the efforts to reduce PM2.5 exposure in many countries are making a real, positive difference.
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