Anyone who recalls whispering at the dinner table as a child likely also remembers being overheard and reprimanded by their sharp-eared mother, even as an oblivious father ploughed through his meal. Now, science has an explanation for this long-standing observation. A new study conducted by a team of British and French researchers tested around 450 people across 13 countries and found that women typically have higher hearing sensibility than men.

"Women consistently exhibit higher sensitivity by two decibels," the researchers wrote in a paper published in the journal Scientific Reports. This was true across the entire frequency spectrum tested and for all populations sampled. Surprisingly, the study found that in some groups, women's ears were up to six kilohertz sharper than men's. Women not only exhibit heightened cochlear sensitivity—referring to the fluid-filled part of the inner ear that converts sound waves into signals the brain can process—but also outperform men in other auditory tests.

"This difference stems from women's superior function in both the peripheral auditory system and the central auditory pathway. We were surprised to find that women had two decibels more sensitive hearing across all the populations we measured, and this accounted for most of the variations between individuals," said Turi King of the University of Bath in the UK.

People Living in Forests Can Hear Better

Beyond the gender-based differences, the study also uncovered that people living in forest environments exhibited the highest hearing sensitivity. In contrast, those residing in mountainous areas showed the lowest. The researchers noted that people living at higher altitudes tend to have reduced hearing capabilities.

Environmental factors like population density, natural soundscapes, and pollution levels were found to play a significant role in shaping auditory sensitivity. Language exposure also had a measurable impact.

Why Is This Study Important?

According to the lead researchers, the findings are significant because they challenge long-held assumptions about hearing. The study highlights the importance of considering both biological and environmental influences when examining auditory health.

Here's How You Can Enhance Your Hearing

- Avoid loud environments or use ear protection like earplugs or noise-canceling headphones.

- Keep earphone volume low—follow the 60/60 rule (no more than 60% volume for 60 minutes).

- Exercise regularly to improve blood circulation to the ears.

- Eat a balanced diet rich in omega-3 fatty acids and antioxidants.

- Stay hydrated to support overall ear health.

- Quit smoking and limit alcohol intake, as both can harm hearing.

- Manage stress, which can worsen tinnitus or hearing sensitivity.

- Clean your ears gently—avoid inserting cotton swabs or sharp objects.

- Go for regular hearing check-ups, especially if you notice any hearing changes.

- Seek early treatment if you experience ringing, pain, or hearing loss.

US Flu Outbreak: At least 52 children have died of the flu so far this season, with over 90 per cent not receiving the flu shots, the Centers for Disease Control and Prevention has reported.

“We are absolutely bracing ourselves,” Michele Slafkosky, executive director of the nonprofit Families Fighting Flu, was quoted by NBC News. “We’re concerned that we’re not even at the peak of flu season yet.”

Overall flu activity picked up again last week, according to the CDC report, following several weeks of decline. The agency estimates that there have been at least 20 million flu cases so far this season, resulting in 270,000 hospitalizations and 11,000 deaths. The CDC has also reported that this is the worst flu season so far.

These cases are surging, along with an increase in hospitalization, driven by a mutated influenza A variant, H3N2, 'subclade K'. Experts have warned that flu activity could further increase in the weeks to come. Unlike past years, parents may have to jump through extra hoops to get their children a flu shot.

US Flu Outbreak: Pediatric Flu Deaths In 2024-25 Season

The 2024-25 flu season led to 280 flu-related pediatric deaths. This has been the highest number since the CDC started reporting these in 2004. Nearly all the children were unvaccinated.

Dr. Yvonne Maldonado, a pediatric infectious disease epidemiologist and professor at Stanford University, told TODAY.com, “It’s more than unfortunate; it's tragic," for the CDC to change its flu shot guidance for kids. “(Flu shots) probably are the most effective intervention in the last 100 years to reduce child deaths in this country.”

The change in the flu shot recommendation also drew criticism from the American Academy of Pediatrics and the Infectious Disease Society of America.

Read: Super Flu Now Reached California, Confirm Health Officials

Experts have warned that the new guidance creates confusion, which could lead to fewer children getting vaccinated. However, doctors time and again have said that the best line of defense remains to be the flu shots. Dr Pedro Piedra, professor of molecular virology and pediatrics at Baylor College of Medicine told Today.com, "There is plenty of data showing the effectiveness... of the influenza vaccine in children." The CDC website also states that the "flu vaccine can prevent severe, life-threatening complications in children."

US Flu Outbreak: How Effective Is The Flu Vaccine?

The flu shot helps the immune system learn how to fight the virus by exposing it to harmless pieces of killed or weakened flu germs, allowing the body to build antibodies that can quickly recognize and stop the infection if exposed later.

While the flu shot may not always stop you from catching the virus, its biggest strength lies in making the illness far less dangerous. Vaccinated people are significantly less likely to be hospitalized, need intensive care, or die from flu-related complications.

Overall flu shot effectiveness usually falls between 40 to 60 percent, depending on the season, but studies show the protection is often stronger in children. A 2022 study cited by the CDC found that flu vaccination reduced the risk of severe illness in children by 75 percent. Another CDC-listed study from 2020 showed the vaccine lowered flu-related hospitalizations by 41 percent and emergency room visits by 50 percent during the severe 2017–2018 flu season. Earlier research from 2017 also found that flu vaccination cut a child’s risk of dying from the flu by up to 65 percent, even among otherwise healthy children.

Keltie Knight, Canadian-born American television presenter and a podcast host, now 43, a couple of years ago had blurry vision. She writes for Telegraph UK that she could not read the teleprompter on set. "I started to panic," she says.

She used to be a professional ballet before her career on television took off. She writes this made her so busy that her health started to deteriorate more and more. "I was so tired that I could have easily slept for 22 hours a day. The walk from my room to the bathroom became so exhausting that sometimes I wouldn’t have the energy to go. My hair started falling out, and I sometimes had rashes and hives all over my body for no reason," she writes.

She usually brushed off the most of it as stress-related, but one day her symptoms became unexplainable.

Keltie Knight Health Update: The Symptom That Triggered Her

She says that three years ago, things got "really bad". She could not see from one of her eyes, and her gum bled "profusely". She was depressed and started to blame herself for having a big career that destroyed her health.

"I told only my husband, Chris, how I was really feeling. I never took a sick day and never complained to anyone at work that I was feeling unwell. Chris was extremely supportive, but I wasn’t myself and I knew it was hard on him. I would come home after a long day of masking and be on another planet. I certainly wasn’t a present wife and constantly worried that I was never going to get better," she says

Keltie Knight Health Update: Doctors Gaslit Her For Years

She said that during that period she visited 15 different doctors. She had also gotten multiple iron blood infusions and tests for every possible disease. "Most of them just told me to eat more vegetables and get some rest."

After a lot of trial and error, she finally found a specialist who carried out an in-depth blood test, which is how she got a diagnosis. She was diagnosed with microcytic anaemia.

Keltie Knight Has Microcytic Anaemia: What It Means

It is a condition where a person's red blood cells are smaller than usual because they do not have enough hemoglobin, which is a protein present in the red blood cell. It helps the red blood cells carry oxygen throughout the body. Low hemoglobin also causes your red blood cells to be paler than normal or "hypochromic".

Keltie Knight Health Update: What Happened After The Diagnosis?

She was also told that her ferritin levels were "incredibly low". It was 8, while 15 is the standard.

"My doctor had a conversation with my gynaecologist and they decided that, due to my deficiency, the best thing they could do was to stop my period completely, because I was losing too much blood," writes Knight.

"We talked through a few options and decided on an ablation, which is effectively burning the lining of the uterus," she writes about her treatment options. However, when she went in for an MRI, her uterus was "heart-shaped", which meant an ablation could not work because the thermal balloon would not be able to reach all parts of it.

Keltie Knight Health Update: Treatment Options

Hysterectomy was the only solution she was left with. This meant that her uterus and her cervix would be removed. Which also meant that she would not only not get her period, but would never be able to have children.

"I had already decided that motherhood wasn’t the right path for me, but it was still a hard decision to make. On the one hand, I was desperate to get better, so I was willing for them to take my uterus and cervix out; on the other, getting a hysterectomy was so final," she writes. Throughout all, she notes, her husband Chris was very supportive.

While the surgery was successful, returning to work was a little bumpy. Returning to work after a month and standing up for long periods was difficult. She says she wore a corset under her clothes "to keep everything tight and upright" in a hope that things would eventually improve, and they did.

Eight months later, she does not have the rashes anymore, her hair is shiny and gorgeous, as she writes, and she was not tired all the time. "I finally felt like myself again."

Nipah virus outbreak in India has triggered screenings across Asian airports. However, the health authorities of the Kolkata hospital where two nurses were admitted confirmed that one of the two nurses has been discharged from hospital. While this may be a good sign, there is still need to be cautious of the virus.

Nipah Virus Outbreak In India: How Does It Work?

Experts and doctors are still telling people to be cautious of what they eat, as the fatality rates are from 40 per cent to as high as 75 per cent. It is a zoonotic infections that infects vital organs like brain and lungs. However, the virus is also able to manipulate body's immune system.

Nipah Virus In India: How Does It Affect Immune System?

Nipah virus is lethal because it can outpace, suppress and misdirect immune responses. Speaking to NDTV, Dr Dip Narayan Mukherjee, Consultant, Microbiology and Infectious Diseases at CK Birla Hospitals said, Nipah virus leaves the body unable to clear the infection in time. "Understanding this immune disruption is critical to explaining why Nipah causes severe encephalitis, multi-organ failure and high mortality, and why early detection and containment remain the most effective tools against it."

This immune disruption begins early in the infection. The body’s first line of defense against viruses is the innate immune system, which relies heavily on interferons. These signalling proteins alert neighboring cells to the threat and trigger antiviral mechanisms that slow viral replication.

“One of the earliest ways Nipah evades immunity is by interfering with the innate immune response,” Dr Mukherjee says. “The virus suppresses interferon activity, allowing it to multiply rapidly before the immune system can respond adequately.”

Research published by the World Health Organization and other virology institutes shows that specific Nipah virus proteins block interferon signalling pathways. This gives the virus a crucial head start, enabling widespread infection before the immune system is fully activated.

Read: Australia Is Monitoring Nipah Virus Outbreak In India

Nipah Virus Outbreak In India: Inflammation And Low Immunity

As the infection progresses, Nipah targets the cells lining blood vessels, a feature that sets it apart from many other respiratory viruses. Damage to these vessels allows the virus to spread to multiple organs, including the brain, while also triggering widespread inflammation.

Instead of a controlled antiviral response, the body releases large amounts of inflammatory molecules. This excessive inflammation leads to tissue injury, swelling and organ dysfunction, contributing to respiratory failure, neurological symptoms and circulatory collapse in severe cases.

Another hallmark of Nipah infection is immune exhaustion. Although the virus does not directly infect most immune cells, the intense inflammatory environment causes them to become overactivated and eventually dysfunctional. Once these defense cells lose their ability to control viral replication, the infection accelerates, and supportive care becomes less effective in later stages.

When Nipah crosses into the brain, immune control becomes even more limited. The brain’s immune responses are naturally restrained to prevent damage, allowing the virus to persist. At the same time, inflammation causes swelling, seizures and encephalitis. Neurological complications remain the leading cause of death in Nipah outbreaks.

Nipah Virus Outbreak In India: Why Antibodies Against The Infection Arrive Late

The adaptive immune response, which includes antibody production and virus-specific T-cells, also struggles to keep pace with the rapid spread of Nipah. By the time neutralizing antibodies are produced, significant organ damage may have already occurred, particularly in the brain. This delayed response explains why severe encephalitis is common even in people without underlying health conditions.