If hand sanitisers kill 99.99% of germs, then who are those 0.01% who survive? There are three major kinds of germs which remain active even when you have used your sanitiser.
Among them, is the norovirus that causes diarrhoea and vomiting outbreaks in places like cruise ships and schools. It is superior to many other viruses because it has a protein capsid, which is resistant to the effects of alcohol.
Norovirus is a group of viruses that causes common illnesses and is also very contagious. It is especially active in the colder month and comes back seasonally. The first norovirus outbreak occurred in Norwalk, Ohio, USA, in a school in 1968, this is where it gets it name from.
The next on the list is enterococcus faecium, and it lives in the gut. As per a 2024 study titled Enterococcus faecium: evolution, adaptation, pathogenesis and emerging therapeutics, published in Nature journal, it is a Gram-positive bacterium that is a core member of the intestinal microbiota of humans and animals and an opportunistic pathogen that causes life-threatening infections, particularly among hospitalized patients. It mutates in a way that it absorbs carbohydrates and forms a gooey, slime-like substance called the biofilm, which makes it resistant to alcohol.
Another one is clostridium difficile. This is responsible for causing horrendous diarrhoea and vomiting in hospitalised patients. It also has a remarkable ability to respond to environmental stressors including alcohol gel by going to sleep. It produces spores and allows all metabolic activity.
Clostridium difficile (C. diff) is a type of bacteria that can cause colitis, a serious inflammation of the colon. Infections from C. diff often start after you've been taking antibiotics. It can sometimes be life-threatening.
Apart from the germs and pathogens, another reason why your label reads that it kills 99.99% is to avoid any legal hassles. If someone uses a specific product and falls sick, then the person cannot sue the company as the company did not give a 100% safety guarantee against the germs.
A better way to be healthy is always to clean your hands with soap and water and wear gloves wherever is possible.
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Delhi continues to wake up to thick haze on Wednesday morning, with 28 stations in 'poor' category, while nine stations remained under 'very poor'. Though there is a slight improvement as the average AQI stood at 269, in poor category. The Chief Minister of Delhi has enforced stricter measures like imposing fines up to Rs. 5,000 for open burning, and use of coal and firewood.
Delhi pollution has now affected people way beyond their respiratory health, it has now attacked almost all organs of their body, including fetus, reproductive health, liver, kidneys, and even chronic diseases like diabetes, obesity, blood pressure, and even mental health illness.
But could Delhi do more? Right now all the measures, including emergency measures like GRAP have not worked more than a dent. However, China seems to have reverse its pollution problem.
In 2013, Beijing was battling with pollution problem. As per the data by the World Health Organization (WHO), in 2013, the annual means of PM2.5 levels reached 64.9 micrograms per cubic meter, whereas, in India, it was at 58.2. However, by 2019, China was able to bring it down to 38.15 micrograms per cubic meter while India remained at 50.17.
Since 2013, almost 80% of China has experienced air quality improvement. Beijing declared a war on pollution by shutting 3,000 coal boilers, which slashed coal use by 30%. It also forced factory to either close or comply with the guidelines. Clean energy also replaced soot and electric buses replaced diesel ones. The subway was expanded to 1,000 kilometers and by 2020, 40% of new cars were electric.
In the late 2000s, China began taking air pollution more seriously than ever. As per the UCLA Law professor Alex L Wang, China's 11th FYP (2006-10) made pollution a priority and used the "cadre evaluation system". This pushed officials to meet environmental targets. The system evaluates governors, mayors, and local leaders based on how well they perform compared to others in tackling pollution problem, which influences their promotions.
To cut pollution, China invested heavily in cleaner technology and shut down old, highly polluting factories such as power plants, smelters, and chemical units. The government also encouraged the shift to electric vehicles. Even though much of China’s electricity comes from coal, EVs still produce fewer emissions overall and create no tailpipe pollution in cities.
By 2017, Shenzhen became the first city in the world to fully electrify its 16,000 buses. Shanghai too followed its lead.
Studies by Tsinghua University and the Beijing Environmental Bureau showed that between 2013 and 2017, major improvements in air quality came from reducing coal boiler use, cleaner home heating, shutting down polluting industries, and controlling vehicle emissions.
The result was nothing less than remarkable. From 2013 to 2017, Beijing’s PM2.5 levels dropped by 35%, and life expectancy rose by 4.6 years.
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As men step into their 50s and beyond, prostate health becomes an essential part of overall wellbeing. The gland naturally undergoes changes with age, many of which are not cancerous but can still cause discomfort, disrupt daily routines, and affect long-term health. Awareness, early screening, and preventive habits play a crucial role in staying ahead of potential problems.
One of the most common age-related concerns is benign prostate hyperplasia (BPH), a non-cancerous enlargement of the prostate. This happens due to hormonal shifts that cause the gland to grow slowly over time.
“Most men assume urinary symptoms are just a normal part of aging, but that mindset often delays treatment,” says Dr. Vineet Malhotra, Director and Founder, VNA Hospital. “BPH itself is not dangerous, but if ignored, it can seriously affect quality of life and even lead to complications.”
These symptoms often creep up gradually, making them easy to dismiss until they start interfering with sleep, work, or general comfort.
While BPH is not cancer, men must remain vigilant about prostate cancer, especially because its risk rises with age.
“Prostate cancer in early stages is usually silent,” explains Dr. Malhotra. “That is exactly why screening becomes so important once men cross 50.”
These tests help detect abnormalities long before symptoms appear. Early detection not only improves treatment outcomes but also prevents unnecessary anxiety or uncertainty.
Men should also stay alert for red-flag symptoms, including persistent pelvic pain, unexplained weight loss, blood in urine or semen, and sudden urinary changes.
Beyond medical screening, everyday habits have a strong influence on prostate wellbeing.
“A balanced diet, regular exercise, and maintaining a healthy weight can significantly reduce inflammation and support better prostate function.”
These choices not only support the prostate but also improve urinary health and hormonal balance.
Since stress can worsen urinary symptoms, incorporating yoga, meditation, or deep-breathing practices also makes a noticeable difference.
One of the biggest challenges is the reluctance many men feel when discussing urinary or sexual symptoms.
“Men often suffer quietly because these issues feel too personal,” says Dr. Malhotra. “But silence delays diagnosis and treatment. Open conversations can literally save lives.”
Families, caregivers, and partners can play a supportive role by encouraging early checkups and normalizing discussions around prostate health.
With rising life expectancy and a more active older population, prioritizing prostate health is no longer optional—it’s essential.
Early diagnosis, informed decision-making, and evidence-backed treatments give men the chance to maintain independence, comfort, and quality of life well into their later years.
As Dr. Malhotra puts it, “Prostate health is not just a medical concern—it’s a foundation for staying energetic, confident, and healthy as you age.”
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Crossing 40 often brings subtle but noticeable changes in how your body feels and functions. Many people brush off early signs like morning stiffness, reduced flexibility, or frequent bathroom visits, not realizing these are part of natural age-related changes. These shifts primarily affect the bones, joints, and urinary system, areas that quietly define everyday comfort.
According to Dr. Aashish Chaudhry, Managing Director & Head, Orthopedics & Joint Replacement, Aakash Healthcare, these changes are expected but shouldn’t be ignored. “After 40, the body’s regenerative capacity slows down, particularly in bones and joints. Being aware of these changes helps in early prevention and better long-term outcomes,” he says.
Bone density gradually declines with age due to hormonal changes. Women experience a drop in estrogen, and men see reduced testosterone levels—both crucial for supporting bone formation.
“Lower hormone levels weaken the natural bone-building cycle,” explains Dr. Chaudhry. “This increases the risk of fractures and even slows down healing when injuries occur.”
To counter this, weight-bearing exercises and strength training are crucial. A diet rich in calcium, vitamin D, and protein supports bone metabolism and maintains strength.
Years of repetitive movements, combined with declining collagen production, make joints more vulnerable. Cartilage becomes less elastic, leading to stiffness, reduced mobility, and the early onset of osteoarthritis.
“Many people notice joint pain but assume it's just fatigue,” says Dr. Chaudhry. “In reality, early joint wear can be detected and managed much earlier with the right interventions.”
Flexibility-focused exercises like yoga or stretching, along with anti-inflammatory foods such as leafy greens, berries, nuts, and omega-3 sources, can ease stiffness and protect long-term mobility.
While both men and women experience changes in urinary patterns, men often notice symptoms more prominently due to prostate enlargement. A bigger prostate narrows the urinary passage, causing:
Women, on the other hand, may struggle with pelvic floor weakness, leading to leakage or urgency.
Dr. Chaudhry notes, “These symptoms are common after 40, but they shouldn’t be normalized. Early evaluation can prevent chronic discomfort.”
Hydration remains essential. Cutting back on caffeine, alcohol, and salty foods can also lighten urinary symptoms and prevent kidney irritation.
Shifting from reactive to preventive care is key after 40. The goal isn’t to stop ageing—it's to age comfortably and confidently.
“Think of this stage as preparing your body for the next decades,” says Dr. Chaudhry. “With the right lifestyle adjustments, most people can maintain excellent mobility and function well into older age.”
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