Why Some People Are Immune To Deadly Diseases Over Others?

Updated Mar 1, 2025 | 07:00 PM IST

Summaryhe National Organization for Rare Disorder also notes that it is a genetic autoimmune disorder that is caused by mutations in the COPA gene. This disease affects families unpredictably—some individuals with the mutation develop severe lung damage early in life, while others remain completely healthy.
COPA syndrome

Credits: Canva

For over 15 years, Dr Anthony Shum, a pulmonologist at the University of California, San Francisco has been studying a rare genetic disorder called the COPA Syndrome. It stands for coatomer subunit alpha and is a rare, inherited disorder that affects the lungs, joint, and kidney. The National Organization for Rare Disorder also notes that it is a genetic autoimmune disorder that is caused by mutations in the COPA gene. This disease affects families unpredictably—some individuals with the mutation develop severe lung damage early in life, while others remain completely healthy. Now, Shum’s team has discovered a protective genetic variant that may offer new hope for treatment.

A Breakthrough

Researchers found that some relatives of COPA Syndrome patients stayed healthy despite carrying the same COPA gene mutation that causes the disease. The key difference? These unaffected individuals had a protective version of another gene called HAQ-STING.

When scientists introduced HAQ-STING into diseased lung cells from COPA patients, the cells returned to a balanced state, suggesting that this gene could be used as a therapy.

“We really think HAQ-STING could be a gene therapy tool and a step toward a cure,” said Shum, whose findings were published in the Journal of Experimental Medicine.

Families Who Solved The Mystery

Shum’s journey into COPA Syndrome research began in 2011 when he treated a young woman, Letasha, who had severe lung bleeding. Her mother, Betty Towe, mentioned that Letasha’s sister, Kristina, had suffered from similar symptoms. Over the years, Betty had taken both daughters on a four-hour trip to UCSF for treatment. After tracing their family history, Shum discovered that their distant relatives in Texas and Oakland also had lung problems and arthritis. In 2015, Shum, along with scientists from Baylor College of Medicine and Texas Children’s Hospital identified the COPA gene mutation. They realized that it was the common factor behind the illness. However, only some of the 30 individuals with the mutation actually developed symptoms, leaving a major question unanswered.

The Domino Effect

It was established that it occurs when a mutated COPA gene causes another gene STING to go overdrive. The STING that helps fight infections in COPA patients, remain permanently active, which leads to chronic inflammation that damages the lungs, kidneys, and joints. In 2020, while studying STING’s role in the disease, researchers discovered a key variation: HAQ-STING. This version of STING, present in about one-third of the population, appeared to neutralize the harmful effects of the COPA mutation.

To confirm their theory, the scientists needed both affected and unaffected family members to participate in the testing. Letasha, Kristina and Betty immediately volunteered. The researchers then analyzed DNA samples from 26 COPA patients and their healthy relatives. They also conducted CT scans and blood tests to ensure that unaffected members did not have any hidden symptoms. When the findings were all clear, it was revealed that all the healthy individuals had HAQ-STING, while none of the COPA patients did. This was the first known case of a common gene variant completely protecting against a severe genetic disease.

Encouraged by this discovery, researchers tested HAQ-STING’s effects in a lab setting. They introduced it into diseased lung cells from COPA patients, and the cells returned to normal function.

Way Ahead

Shum believes HAQ-STING could lead to game-changing treatments, including:

  • Prenatal gene therapy for babies diagnosed with COPA Syndrome before birth
  • Aerosol delivery of HAQ-STING for adults, directly targeting the lungs

Before publishing their findings, Shum called Betty with the news—her own HAQ-STING gene had protected her from the disease. He also informed Letasha and Kristina, who were overwhelmed with relief and joy.

“We always believed Dr. Shum would get to the bottom of it,” said Letasha. “This discovery is going to change lives.”

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Women After 40: It’s Time to Put Your Health First

Updated Oct 24, 2026 | 09:00 AM IST

SummaryAfter 40, hormonal changes and age-related health risks make preventive care more important than ever. From heart and bone health to breast cancer screening, nutrition, sleep and mental well-being, discover why women should prioritise regular check-ups and self-care.
Women After 40: It’s Time to Put Your Health First

Credit: iStock

Turning 40 is an is an important milestone in a woman’s life. Careers are often in full swing, family responsibilities are complex, and the invisible load of emotional caregiving peaks. Amidst these demands, health often takes a back seat.

Many women rely on a cursory annual check-up or only seek medical advice when an undeniable symptom forces their hand. But staying healthy after 40 requires more than reacting to illness. At 25, your body forgives you. At 55, it punishes you. But between 40 and 50, it negotiates. This is the critical window to adopt a proactive, personalized approach that secures your physical independence and cognitive sharpness for the next four decades.

Perimenopause Affects The Hormones, Bones, and the Heart

As women navigate their 40s, they enter perimenopause-the transitional phase leading to menopause. This isn't just about hot flashes and irregular periods; it is a profound biological shift. Before menopause, estrogen acts as a physiological shield. It maintains vascular elasticity, improves glucose metabolism, suppresses inflammation, and preserves bone density by keeping the cells that break down bone in check.

However, when estrogen levels plummet during menopause, this shield drops. The consequences are systemic. The cardiovascular risk gap between men and women narrows rapidly, and heart disease risk skyrockets. Without estrogen’s protective effect, women also face an accelerated loss of bone density, vastly increasing the lifetime risk of osteoporosis and fractures.

Furthermore, this hormonal shift accelerates sarcopenia-the loss of muscle mass and quality. Women often experience a sharp decline in lower body strength during their late 40s, which is pure biology, not laziness. Recognizing these changes early is crucial because the years leading up to perimenopause are the optimal time to build cardiovascular and metabolic resilience.

Also read: Breast Cancer At 26 Sent This US Woman Into Menopause Before 30: What Is The Hidden Toll Of Treatment

Prevention: A Structured 40s Dashboard

Preventive care should not be a blind fishing expedition; it should be a targeted dashboard. A standard master health checkup often misses the most critical markers. Women in their 40s must advocate for specific, scientifically recommended screens.

Fasting sugar isn't enough. Ask for Fasting Insulin to catch insulin resistance years before diabetes develops. Track your ApoB (the most accurate marker for plaque-causing cholesterol) and Hs-CRP (a marker for chronic inflammation). Thyroid disorders are 5-10 times more common in women, especially post-pregnancy.

Request a full panel (TSH, Free T3, Free T4) rather than just TSH. Bone Density (DEXA Scan) check is a must to establish a baseline in your 40s. The goal is to catch osteopenia early, while it is still entirely reversible through targeted nutrition and resistance training. Cancer Screening is crucial.

Annual or bi-annual mammograms starting at 40 are essential. Because Indian women often have dense breast tissue, a targeted breast ultrasound may also be necessary. Co-testing with a Pap smear and HPV DNA test every 3-5 years remains the gold standard for cervical cancer prevention.

Everyday Habits Make A Lasting Difference

You cannot out-supplement a sedentary lifestyle. A personalized health plan must be anchored by non-negotiable daily habits. Walking is great for cardiovascular baseline health, but it does nothing to preserve muscle or bone density. Strength training twice a week is the fountain of youth.

Lifting weights forces the body to build bone mass and creates a "glucose sink" that regulates blood sugar and combats the metabolic slowdown of perimenopause. A balanced meal rich in protein and vegetables is a must. The average Indian diet is dangerously deficient in protein. Ensure you are getting 30 grams of high-quality protein at every major meal.

Adopt the "fiber-first" sequencing rule: eat your vegetables/salad first, protein second, and carbohydrates last to drastically blunt post-meal blood sugar spikes. Prioritize sleep with reverence. Deep sleep is the only time your brain flushes out neurotoxins. Protect this phase by enforcing a "digital sunset" 45 minutes before bed and finishing your last meal three hours before sleeping to keep your core body temperature cool.

Also read: World Menopause Day 2026: Perimenopause Can Begin In Your Late 30s. What Changes Should You Watch For?

Mental Wellbeing Deserves Equal Attention

Women routinely balance professional commitments and caregiving, leaving little room for their own emotional needs. The chronic stress of this "invisible load" elevates cortisol, which actively drives abdominal weight gain, sleep disruption, and systemic inflammation.

You cannot eliminate stress, but you can change how your nervous system responds to it. Build small pockets of autonomy into your day-whether it is 10 minutes of box breathing (inhale 4, hold 4, exhale 4, hold 4) before a meeting, or simply a 15-minute walk without your phone.

We are the most digitally connected generation in history, yet modern urban women are increasingly lonely. Social isolation shifts the brain into a hyper-vigilant survival mode, carrying a mortality risk equivalent to smoking 15 cigarettes a day. The antidote is deep, meaningful connection. Maintain your "Third Place" outside of work and home- this could be a library or a badminton court, and please prioritize rituals with friends that don't revolve around digital screens.

Make Your Health Plan A Yearly Conversation

To ensure these screenings and habits don't fall by the wayside, implement the "Birthday Protocol." Schedule your comprehensive health screening during your birthday month every year. Rather than simply asking if your reports are "normal," use the data to have a purposeful conversation with your physician.

Ask three questions: What are my top three health risks based on this data? What specific lifestyle adjustments should I make over the next 12 months? What markers are we monitoring next year? Good health after 40 is not about attempting a flawless, restrictive lifestyle overhaul overnight. It is about the consistency of small, science-backed habits. Start with one or two achievable changes this month, whether that means adding a strength-training session, scheduling a pending screening or establishing an earlier bedtime.

Build on those habits gradually and review your progress with your healthcare professional. The goal of good health after 40 is not simply to prevent illness or add more years to life. It is to preserve strength, independence and the freedom to live those years well. An annual check-up is the perfect starting point to a thoughtful, personalised strategy that can eventually help women stay healthy, strong, active, cognitively sharp and in total control of their entire wellbeing in all the years that lie ahead.

By Dr. Navin Gnanasekaran, MD, Longevity Physician, Head of Radiology - Apollo Hospitals Chennai, Co-founder -LIVF Women & Author of The 100 Year Blueprint

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World Polio Day: Why India Must Stay Vigilant Despite Being Polio-Free

Updated Oct 24, 2026 | 07:00 AM IST

SummaryPolio Day: Despite achieving polio elimination status more than a decade ago, India still faces a risk of polio as the virus is still active in neighbouring countries like Afghanistan and Pakistan.
World Polio Day: Why India Must Stay Vigilant Despite Being Polio-Free

Credit: AI

Elimination of wild poliovirus remains a landmark public health achievement for India, but the fight against the disease is not over. With poliovirus still circulating in neighbouring countries like Afghanistan and Pakistan, efforts like continued vaccination, strong surveillance and early detection remain essential to protect children from a debilitating disease that can cause irreversible life-long paralysis.

The last case of wild poliovirus in India was reported on January 13, 2011. The World Health Organization (WHO) declared its South-East Asia Region, which includes India, polio-free on March 27, 2014. More than a decade later, maintaining that status still requires focused efforts to ensure every child is protected.

The latest figures from the Global Polio Eradication Initiative show that Afghanistan had reported 42 cases of wild poliovirus in 2026 as of October 21, while Pakistan had reported six.

The two countries remain the only places where wild poliovirus is endemic. These cases highlight why polio continues to be a global public health concern even in countries that have eradicated it.

Gulam A. Vahanvaty, Chairman of the India National PolioPlus Committee at Rotary International and a former trustee of The Rotary Foundation told HealthandMe that elimination within a country does not mean the risk has disappeared.

“Just because a country is free from polio doesn't mean it is immune to the disease,” he said.

Also read: What Is Vaccine-Derived Polio And How Is It Triggering New Polio Cases In India?

India Must Be Vigilant About Polio Vaccination Efforts

Polio is a highly contagious infectious disease caused by poliovirus. It spreads through the faecal-oral route, when the virus passes from an infected person's stool into another person's mouth, often through contaminated hands, food or water.

It can also spread through oral secretions. Although many infections cause no obvious symptoms, the virus can affect the nervous system and cause permanent paralysis.

Dr Aparna G, Consultant in Paediatrics and Neonatology at Rainbow Children's Hospital, Sholinganallur, Chennai, explains that sustained immunisation is central to preventing the disease from returning.

She said, “While India was declared polio-free on March 27, 2014, by the World Health Organization, the risk of the virus being reintroduced from neighbouring countries where it continues to circulate remains.”

Vaccination builds immunity against poliovirus in children. India uses two types of polio vaccines - the inactivated polio vaccine (IPV), administered by injection, and the oral polio vaccine (OPV), given as drops.

Routine immunisation helps ensure that every child receives their recommended vaccine doses. Dr Aparna explain, “Pulse polio immunization is a strategy of mass immunization by which one can eradicate poliomyelitis.

Extra doses of OPV are given to all children below 5 years of age in an area at a time on a given day. Such pulses are repeated every year. The aim is to achieve 100% coverage.”

These additional doses do not replace routine vaccination. Both approaches are important, especially for reaching children who may have missed doses or live in places where access to healthcare is poor.

Also read: Polio Cases On The Rise Again, WHO Warns The World To A Growing Threat

Surveillance Is As Important As Immunisation

Vaccination is only one part of maintaining India's polio-free status. Public health authorities must also be able to detect any possible circulation of the virus quickly.

One important tool is surveillance for acute flaccid paralysis (AFP), which involves investigating cases of sudden-onset weakness or paralysis in children. Environmental surveillance, which includes testing sewage samples for poliovirus, can also help detect the virus even when no cases have been reported.

Dr Aparna says, “Equally important is strong surveillance to identify suspected cases, monitor acute flaccid paralysis and detect any possible circulation of the virus at an early stage. Timely detection allows public health authorities to respond quickly and prevent further transmission. Active community-based surveillance should also be considered.”

Early detection allows authorities to investigate threats, identify immunity gaps and organise vaccination drives where necessary.

Despite progress, the circulation of wild poliovirus in Afghanistan and Pakistan even today means the global eradication effort remains unfinished. International cooperation, vaccination coverage and effective surveillance will continue to be essential until transmission is curbed everywhere.

For India, the priority is to protect the progress achieved by ensuring that children do not miss routine immunisation, that vaccination campaigns reach vulnerable communities and that surveillance systems remain capable of identifying threats.

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'I Never Recovered From That Crash': US Physicist Recalls Her Years-Long Battle With Long COVID

Updated Oct 24, 2026 | 12:00 AM IST

SummaryA US-based physicist recently narrated her experience with Long COVID that left her with life-changing symptoms like brain fog, nausea, headaches, sensitivity to light and sound and more.
'I Never Recovered From That Crash': US Physicist Recalls Her Years-Long Battle With Long COVID

Credit: AI

Dianna Cowern, the science communicator with more than two million YouTube subscribers, was at the peak of her career in 2022. Featuring millions of views, her YouTube channel ‘Physics Girl’, featured her travelling across the world filming science videos. She had also recently married her longtime partner, Kyle Kitzmiller.

Then, after contracting COVID-19 during her honeymoon in Scotland, her life took a turn in ways she could not have anticipated.

What initially started off as a mild infection was followed by a sharp decline in her physical and mental health. A hike she had planned with her husband became an impossible task for her. After that rest no longer seemed to help her recover.

Cowern's experience highlights the disabling effects of Long COVID, a condition that researchers are still trying to understand.

She recalled the time when her symptoms escalated, “Brain fog like I'd never experienced before. I couldn't walk. I couldn't think. I had nausea and headaches,” she said. “And I never recovered from that crash.”

From An Active Life To Confined To Bed

Also read: Long COVID: Mouth And Lung Bacteria May Offer Clues

According to KPBS, Cowern's initial COVID-19 symptoms included a sore throat, cough and stuffy nose. After they subsided, she and Kitzmiller began a multiday hike they had planned for months. By the third day, she was struggling to recover even after resting and had to take a cab to the next location while her husband continued on foot.

The couple cut their honeymoon short and returned to San Diego. Her health continued to decline. She first lost the ability to run and hike, then struggled to work and walk. Eventually, she became unable to speak, read or use her phone.

Sensitivity to light and sound left her spending her days in a dark room, wearing dark glasses and noise-cancelling headphones to limit stimulation. Kitzmiller became her full-time caregiver.

He also recalled episodes in which her heart rate dropped into the 30s. He used a pulse monitor with an alarm and slept waiting for it to sound. “Every day I didn't know if she was just gonna die,” he said.

The couple sought medical help, but tests failed to provide clear answers. Kitzmiller described the response they had received from doctors. He said they said, “There's not a real disease here.”

Long COVID Is Part Of Post-Acute Infection Syndromes

Also read: Long COVID Symptoms Are Closer To A Stroke Or Parkinson's Disease Than Fatigue

Long COVID refers to symptoms that occur after a SARS-CoV-2 infection and cannot be explained by another diagnosis. Symptoms vary widely and may include fatigue, cognitive difficulties, breathlessness, sleep disturbances and problems with everyday activities.

Some people improve over time, while others experience prolonged illness that affects their ability to lead routine lives.

Long COVID is also part of a bigger group of conditions known as post-acute infection syndromes, in which people continue to experience symptoms after an infection has gone.

Researchers are examining possible explanations behind Long COVID, including prolonged immune dysfunction and other changes triggered by infection.

Treatments Improved Symptoms But Road To Recovery Was Far

With few established treatment alternatives available, Cowern explored options suggested by researchers, although they were not approved for Long COVID. She reported a significant improvement after trying some of them.

“I was able to start looking at my phone again and reading and listening to music, which was amazing,” she said. “And then everything improved.”

After three years, she eventually returned to making science videos. But her return has not meant a full recovery. Cowern says that she is functioning at around 30% to 40% of her previous capacity.

She and Kitzmiller are now using their platform to raise awareness about chronic illness. Kitzmiller has also joined an advisory committee for clinical trials investigating a treatment that helped her.

“There’s still a lot to learn,” Cowern said. “There's so little that's understood about this disease, but I will say that everyone that has it is desperate to live again.”

End of Article