The winter season compels us to sit at one place, under the blanket, at the ease of warmth. But aren't we all aware of the dangers of a sedentary lifestyle? And when it is winter, it makes it more so stagnant. Not just that, but now a new study from the University of Iowa says that being a couch potato could lead to 19 chronic conditions. Among the 19 chronic conditions, obesity, diabetes, depression and heart diseases also made it to the list.

Research shows that among many diseases, increased blood pressure, high blood sugar, excess body fat around the waist, unhealthy cholesterol levels that leads to metabolic syndrome, cardiovascular disease and cancer are also there. This is why any extended sitting whether at desk, behind the wheel or the screen can be harmful.

How was the study conducted?

The team of researchers from various departments at the University of Iowa conducted a detailed study where they analyzed records from over 40,000 patients at a major Midwestern hospital system. In the records, they looked at the extensive physical inactivity of these patients and how it impacted their overall health.

The study and the detailed analysis is published in the journal Preventing Chronic Disease and studies.

As part of conducting the study, a 30-second exercise survey was conducted. Then, patients were also asked two questions: how many days per week they engaged in moderate to vigorous exercise and for how many minutes per session? On the basis of response, the patients were categorized into three groups:

• Inactive - 0 minutes per week
• Insufficiently active - 1-149 minutes per week
• Active - 150 minutes per week

As per Lucas Carr, associate professor in the Department of Health and Human Physiology and study's corresponding author, "This two-question survey typically takes fewer than 30 seconds for a patient to complete so it does not interfere with their visit. But it can tell us a whole lot about that patient's overall health."

What did the study find?

The study got 7,261 responses, and it found that around 60% of them met the recommended guidelines for exercising. These people met the 150 minutes or more minutes of moderate exercise per week. However, almost 36% exercised less than 150 minutes per week and 4% reported no physical activity.

The study also found that people experienced lower rates of depression. 15% of people who exercise for 150 minutes or more, or at least for some amount of time could experience depression, as compared to 26% of those who are inactive. Similarly, for obesity, the numbers are 12% versus 21% for obesity, 20% versus 35% for hypertension and the similar trend was seen in other diseases, and markers of good health, including lower resting pulse rates, and cholesterol profiles.

Patients with no physical activity carried a median of 2.16 chronic conditions, this number was 1.49 conditions in insufficiently active patients and dropped to 1.17 in active patients.

The 19 chronic conditions are:

• Obesity
• Live disease
• Psychoses
• Chronic Lung disease
• Neurological seizures
• Coagulopathy (blood clotting disorder)
• Depression
• Weight loss issues
• Uncontrolled hypertension (high blood pressure)
• Controlled hypertension
• Uncontrolled diabetes
• Anemia deficiency
• Neurological disorder affecting movement
• Peripheral vascular disease
• Auto Immune Disease
• Drug Abuse
• Hypothyroidism
• Congestive heart failure
• Vulvar disease (heart valve problem)

Come Saturday morning, many people have just one thing on their mind: catching up on sleep. After a week of early mornings, office deadlines, late-night screen time and household responsibilities, the weekend feels like the perfect opportunity to stay in bed for a few extra hours. Some people even sleep until noon, believing that the extra rest will make up for all those late nights. But is it really possible to undo five days of poor sleep in just two days?

Unfortunately, the brain doesn't work that way. Sleeping longer over the weekend can certainly help you feel less tired, but it cannot completely compensate for a week of inadequate sleep.

Sleep is much more than physical rest. It is when the brain gets down to some of its most important work. Memories are processed, information gathered during the day is organised, and the brain gets an opportunity to recover from constant activity. When we repeatedly cut short our sleep, these processes can suffer.

Why Do We Feel Better After Sleeping In?

Think about how you feel after several nights of going to bed late. You may find yourself forgetting small things, struggling to concentrate during meetings or becoming unusually irritable over minor issues. These are some of the ways sleep deprivation can affect everyday functioning.

Sleeping for a few extra hours over the weekend can ease some of this fatigue. You may feel more alert and find it easier to concentrate. However, feeling refreshed is not necessarily the same as being fully recovered. Certain effects of repeated sleep restriction, particularly on attention and reaction time, can take longer to resolve.

Can Weekend Lie-ins Disturb Your Sleep Cycle?

There is another side to this weekend habit that people rarely consider. If you sleep at 11 pm during the week but stay awake until 2 or 3 am on Friday and Saturday, your body's internal clock can get disrupted.

This internal timing system, called the circadian rhythm, helps regulate when you feel sleepy and when you wake up. Large changes in sleep timings can make it harder to fall asleep on Sunday night. Before you know it, Monday morning arrives and you are back to feeling exhausted.

It becomes a familiar cycle: insufficient sleep during the week, prolonged sleep on weekends and difficulty getting back into a routine.

What Does Repeated Sleep Deprivation Do To The Brain?

One of the biggest areas affected is memory. Sleep plays an important role in consolidating information, which is why a poor night's sleep can make it harder to remember things or absorb new information the following day.

It can also affect emotional regulation. People who regularly sleep less may become more impatient, anxious or sensitive to everyday stress. Their ability to focus and make decisions may also take a hit.

Persistent sleep deprivation has also been associated with metabolic and cardiovascular problems. It is therefore important not to treat poor sleep as an unavoidable part of a demanding work schedule.

What Is A Healthier Way To Catch Up On Sleep?

Rather than depending on Saturday and Sunday to recover, try making small changes to your routine throughout the week.

• Keep a consistent schedule: Try to go to bed and wake up at roughly the same time every day.
• Don't compromise on sleep duration: Most adults need around seven to nine hours of sleep each night.
• Put your phone away before bedtime: Late-night scrolling can keep the mind stimulated and delay sleep.
• Be mindful of caffeine: That evening cup of coffee may be affecting your ability to fall asleep.
• Step outdoors in the morning: Natural daylight helps regulate the body's sleep-wake cycle.
• Pay attention to persistent tiredness: If you wake up exhausted despite getting enough sleep, speak to a doctor. Sleep disorders such as obstructive sleep apnoea may need to be ruled out.

Your brain needs rest every day, not just when the calendar says it is the weekend. Instead of treating sleep as something you can postpone and recover later, make it a non-negotiable part of your daily routine.

For decades, vaccines have transformed numerous fight against aggressive infectious diseases, saving millions of lives. Still, despite years and years of research proving their effectiveness, there is still significant skepticism surrounding vaccination. One of the most enduring claims is that vaccines, especially the measles, mumps and rubella (MMR) vaccine, can cause autism.

The belief that vaccines can cause autism has been debated for decades, despite a solid body of research failing to establish a link between the two.

In an exclusive interview with HealthandMe on World Immunization Day, Dr. Paul Offit, paediatrician and director of the Vaccine Education Center at Children’s Hospital of Philadelphia and former member of the CDC’s Advisory Committee on Immunization Practices, explained why the vaccine-autism claim is a myth difficult to debunk.

Why Is The Vaccine-Autism Issue Still Debated?

Also read: EXCLUSIVE: Ex-CDC Vaccine Advisor Says Measles Outbreak Bigger Than Reported, Slams RFK Jr’s ‘No-See Evil’ Approach

According to Dr Paul Offit, the controversy can be traced back to a 1998 paper that claimed the measles, mumps and rubella (MMR) vaccine caused autism. “I think it was born in that 1998 paper that MMR caused autism,” he said.

He said that the paper did an excellent job at convincing the masses that the adverse events related to vaccines can be long-standing and irreversible, like autism. Offit said the original claim had a lasting effect on public understanding of vaccine safety.

He said, “It’s very hard to unring the bell once you've rung it. I think it's hard to unscare people.”

He said the public-health and academic communities responded by conducting study after study to examine the alleged association. “But vaccines don't cause autism,” Offit said.

He believes that the research conducted after the 1998 paper helped address the concern. He said, “The question has been answered. Most parents of children with autism no longer believe that's the case. So I think that those studies were of value,” he said.

The 1998 paper by Andrew Wakefield and colleagues, which suggested a connection between the MMR vaccine and autism, was later retracted by The Lancet. Subsequent research has not established that MMR vaccination causes autism.

Offit said vaccines had been studied extensively as a possible environmental factor in autism. “Vaccines are probably the best studied environmental factor and that ain't it,” he said.

Autism-Vaccine Debate Is Distracting Essential Research

Also read: 'It’s The Best-Studied Vaccine In Human History': Former CDC Adviser Busts Common Myths About COVID Vaccines

Dr. Offit said that genetics plays an important role in autism, while several factors related to maternal health and pregnancy have also been associated with the condition. He said, “About 80% of autism is genetic.”

He added, “There are a number of sort of factors regarding maternal health, regarding maternal drugs, infections during pregnancy that are associated with autism.”

His comments highlight the need to understand autism through research into its different possible causes rather than focusing on vaccines. To which, Offit said that the vaccine-autism controversy has affected essential autism research.

When asked whether vaccine debates were diverting resources from research into autism causes and diagnosis, he pointed to the work of Alison Singer at the Autism Science Foundation and said there were several promising areas of investigation.

However, he criticised anti-vaccine groups for continuing to use autism as part of their arguments against vaccination. “I think that anti-vaccine groups have sadly taken the autism story hostage,” he said.

He argued that this had reduced the attention and resources that could go towards more promising areas of autism research. “So they hurt children with autism in the end,” he said.

On Revising Autism-Vaccine Debate

When asked what new evidence could make him reconsider his position on vaccines and autism, Offit said he would be open to changing his mind if a particular standard of scientific evidence were met.

“If there was an excellent retrospective study that controlled for things like healthcare seeking behavior, socioeconomic background, medical background, maternal health, et cetera, that was published in an excellent scientific journal and reproduced, then I'm willing to change my mind,” he said.

He added that a study would have to account for factors that could influence the results and be independently reproduced. “But until then, you're just hearing a lot of conspiracy theory and hand-waving,” he said.

Delhi's air quality deteriorated significantly after Diwali. Several monitoring stations recorded ‘severe’ air quality on Monday morning (November 9) after a night of Diwali festivities which resulted in widespread emission of firecracker smoke. It worsened the situation in a city already grappling with soaring air pollution due to vehicular exhaust, construction dust and stubble burning in neighbouring states.

Due to this, Delhi residents, who continue to breathe polluted air, may face symptoms like scratchy throat, coughing and irritation. But how can you tell whether your sore throat is caused by pollution or an infection that needs medical attention?

How Does Air Pollution Cause A Sore Throat?

Polluted air contains particulate matter, including PM2.5, as well as gases and other irritants. When inhaled, these pollutants come into contact with the lining of the nose, throat and respiratory tract, triggering irritation and inflammation.

Dr. Rahul Sharma, Director, Pulmonology & Critical Care, Fortis Greater Noida told HealthandMe, “People exposed to high levels of pollution may experience throat irritation, dryness, a burning sensation, frequent coughing and discomfort while swallowing. These symptoms may be more noticeable in people who spend long hours outdoors and are difficult to control.”

People with asthma, allergies or existing respiratory conditions may be more sensitive to these pollutants.

Dr Sharma added, “Pollution can also aggravate existing respiratory conditions like asthma and allergic airway disease. It is important to remember that a sore throat is not always due to infection; environmental exposure can also be a cause.”

Also read: El Niño Could Worsen Dengue, Malaria And Heat Illness: Why WHO Declared A Health Emergency

Pollution-Related Sore Throat Or Infection?

The symptoms can overlap, so a sore throat alone cannot establish its cause. However, certain accompanying signs may offer clues. Experts help us understand when a sore throat is a result of inhaling particulate matter.

Dr. Sushil Upadhyay, Consultant Pulmonologist, Kailash Deepak Hospital, Delhi told HealthandMe, “Throat irritation as an early sign. A scratchy throat is the canary in the coal mine for lung inflammation. It is the first sign that your airways defenses are overwhelmed and deep inflammation is starting.”

A pollution-related sore throat is more likely to involve dryness, scratchiness, coughing and irritation of the eyes or nose.

Dr Samir Garde, Director of Dept of Pulmonology and Lung Transplant, Gleneagles Hospital, Parel, told us, “Pollution-related irritation usually causes a dry or scratchy throat, coughing and eye irritation, which may worsen outdoors or during periods of poor air quality.”

An infection, on the other hand, may be accompanied by fever and other symptoms. They may include body aches, swollen lymph nodes, painful swallowing, tonsil inflammation or white patches on the tonsils. Viral infections can also cause a runny nose, cough and fatigue.

Dr Upadhyay said, “The flu brings high fever, body aches, and extreme exhaustion. If staying inside an air-conditioned, filtered room clears your throat, it's pollution. Otherwise, think of it as flu.”

A bacterial infection such as strep throat may cause sudden throat pain, fever and difficulty swallowing, sometimes without a cough.

Also read: New COVID-19 Variant PJ.2.1 Spreads Globally: WHO Says Symptoms Resemble Cold, Flu

When Should You See A Doctor?

A mild sore throat often improves within a week. However, medical evaluation is recommended if you have difficulty breathing, cannot swallow, are drooling because you cannot swallow, or experience rapidly worsening symptoms.

Dr Upadhyay said, “Do not ignore a sore throat if it moves to your chest. If you develop wheezing, severe breathlessness or a fever, you need a medical evaluation immediately. Seek help right away if you are gasping for air or cannot finish a single sentence in one breath.”

Persistent hoarseness, a lump in the neck or a mouth ulcer lasting more than three weeks should also be evaluated.

Dr Garde recommended, “Seek medical attention if there is chest tightness, high fever or persistent symptoms. Severe breathlessness, bluish lips or difficulty speaking due to breathing problems require immediate emergency care.”

Also read: Delhi AQI Crosses 2,000 Mark After Diwali: What Happens To Your Body Within Hours Of Exposure?

How Can You Protect Your Throat During Severe Pollution?

According to the doctors, while pollution levels remain high, reducing exposure is important. They recommend:

• Avoid outdoor exercise and limit unnecessary time outside.
• Wear a well-fitting N95 or N99 respirator when going outdoors.
• Keep windows closed during periods of high outdoor pollution and use a HEPA air purifier if available.
• Drink enough water to prevent throat dryness.
• Gargle with warm salt water to soothe irritation.
• Avoid smoking, incense and other indoor sources of smoke.

Do not start antibiotics just because your throat hurts. Antibiotics do not treat throat irritation due to pollution or viral infections. They should only be used when prescribed for a confirmed bacterial infection under doctor’s supervision.

Delhi AQI After Diwali

The city's average Air Quality Index (AQI) reached 406 on November 9, placing it in the 'severe' category, according to the Central Pollution Control Board (CPCB).

But private monitoring platform AQI.in reported an AQI of 2,283, classifying the air quality as ‘hazardous’. The reading showcased a grim post-Diwali pollution peak, an issue that has turned into an annual environmental crisis.

The stark difference in readings is because India’s AQI scale is limited to 500 while other private air quality monitoring platforms measure higher readings. So even if CPCB’s data shows 500 AQI, it can mean that the amount of harmful pollutants could be much higher.

The Supreme Court had implemented restrictions on celebrating Diwali with firecrackers by limiting time between 6 am and 7 am and 8 pm and 10 pm on November 7 and 8 and allowing only green crackers. However, firecrackers were reportedly burst beyond permitted hours.