Experiencing daytime sleepiness is something that is usually perceived as a minor inconvenience, but for older adults, it could be an early warning sign of Dementia. This neurodegenerative disease leads to the progressive decline of brain cells. This eventually

affects memory, cognition, and personality, making everyday tasks more difficult. As one of the fastest-growing neurological disorders across the world, dementia poses a significant health threat to ageing populations.

Is Dementia Linked To Poor Sleep?

For this study, researchers followed 445 older adults (average age 76) over three years, aiming to determine whether poor sleep could increase the risk of mild cognitive impairment (MCI), which often leads to dementia. At the start, none of the participants had MCI, but by the end of the study, 36 individuals had developed the condition.

The researchers discovered that participants with poor sleep were more likely to develop MCI compared to those who slept well. However, when depression symptoms were taken into account, the link between poor sleep and MCI became less pronounced, suggesting that while sleep issues are a concern, mental health also plays a key role in dementia risk.

To assess sleep quality, the Pittsburgh Sleep Quality Index (PSQI) was used, evaluating factors such as sleep duration, disturbances, and daytime alertness. Among these, "daytime dysfunction"—defined as excessive sleepiness and low energy during the day—was most strongly associated with an increased risk of MCI. Those experiencing daytime dysfunction were more than three times as likely to develop MCI as those who didn’t report such symptoms.

There are many types of dementia:

Dementia is not a specific disease. According to the Centers for Disease Control and Prevention (CDC), it is an overall term that describes a decline in mental ability that interferes with daily life. People with dementia often have symptoms like trouble remembering, thinking, or making everyday decisions. These symptoms tend to get worse over time.

Alzheimer’s disease is the most common type of dementia, and it mostly affects the elderly. Each form of dementia has a different cause. Though dementia mostly affects older adults, it is not a part of normal ageing. An estimated 6.7 million older adults have Alzheimer's disease in the United States. That number is expected to double by 2060, as per data from the CDC.

In 2022, 3.8% of men and 4.2% women in US were diagnosed with dementia. The percentage of people increase with age from 1.7% for those aged 65-74 to 13.1% for those aged 85 and older. Alzheimer's accounts for 60 to 80% of all dementia cases and it is most prevalent in California, Florida, and Texas, as these states have the highest number of people.

A new experimental vaccine targeting one of pancreatic cancer's most common genetic mutations has shown encouraging results in an early-stage clinical trial.

Strong immune responses in most participants were observed, sparking fresh hope against one of the world's deadliest cancers.

About The Study

The Phase I study, published in Cancer Discovery, examined an investigational mutant KRAS-targeted vaccine (mKRAS-VAX) in patients who had undergone surgery for pancreatic ductal adenocarcinoma (PDAC), the most common form of pancreatic cancer.

The trial enrolled 12 patients with resected KRAS-mutant pancreatic cancer who received the vaccine alongside two immune checkpoint inhibitors, nivolumab and ipilimumab, after completing standard treatment.

Researchers observed vaccine-induced T-cell responses in 91.7% of patients, with immune cells remaining detectable for up to two years in some participants.

Importantly, patients who mounted stronger immune responses also appeared to remain disease-free for longer, although the study was not designed to prove that the vaccine directly improves survival.

Also read: Broadcaster Lauren Laverne Shares 'Smoldering Myeloma' Diagnosis After Cancer Recovery

Milestone Results Show Strong Immune Response

According to the researchers, pancreatic cancer has always been difficult to treat because it suppresses immune responses.

"The significant increase in vaccine-generated T-cell responses demonstrates that the immune system can be trained to recognize KRAS-mutant pancreatic cancer," the researchers said, noting that higher T-cell responses were associated with longer disease-free survival.

The researchers said that these findings support continued evaluation of KRAS-targeted vaccination strategies in larger clinical trials.

Also read: Postpartum Breast Cancer May Be Biologically More Aggressive; Here’s Why

Parallel Research Shows Potential Too

The promising study follows another recently published Phase I trial in Cancer Discovery that tested a KRAS-targeted vaccine in individuals at high risk of developing pancreatic cancer.

That study found the vaccine safely stimulated KRAS-specific T-cell responses in about 90% of participants, suggesting such vaccines may eventually help prevent pancreatic cancer in selected high-risk groups.

Dr. Neeha Zaidi, associate professor of oncology at Johns Hopkins University and one of the corresponding authors of the prevention study, said, "Individuals at high risk due to hereditary predisposition or to the presence of a concerning pancreatic lesion detected on imaging usually undergo surveillance to monitor for changes over time."

Also read: Cancer Is Not A Death Sentence Anymore: How Early Detection & Modern Treatment Are Changing Outcomes In Tier-2 Cities

She noted that surgery remains the standard treatment when cancer or high-risk lesions are detected, but recurrence remains common, highlighting the need for preventive strategies.

Elizabeth Jaffee, another author, said, "The goal of this study was to test the safety of the vaccine and induction of durable immune responses."

She added that the clinical trial was built on existing evidence showing KRAS-targeted vaccination could prevent progression of early precancerous lesions in animal .

Importance Of KRAS

KRAS is one of the most frequently mutated cancer-driving genes in pancreatic cancer, with mutations present in roughly 90% of pancreatic ductal adenocarcinomas. These mutations continuously prompt cancer cells to grow and divide.

However, scientists have spent decades trying to develop therapies capable of effectively targeting the protein.

Rather than attacking the cancer directly, the new vaccine teaches the immune system to recognize mutated KRAS proteins as abnormal and launch T-cell attacks against cancer cells.

Pancreatic cancer remains one of the most aggressive cancers worldwide because symptoms often appear only after the disease has spread beyond the pancreas.

While experts caution that the current findings come from an early-stage study, they say the results provide promising evidence that cancer vaccines can successfully activate the immune system against pancreatic tumors.

The Ludhiana health department has increased surveillance and prevention efforts after a bunch of new cases of malaria and dengue were reported in the district.

Health officials have stepped up inspections, awareness campaigns, and anti-larval operations, urging residents to eliminate stagnant water and seek medical attention at the first sign of fever.

Increase In Dengue And Malaria Breeding Sites

Also read: Monsoon Playbook for Parents: Common Home Mistakes That Increase Infection Risk in Children

According to recent reports, extensive door-to-door inspections are being carried out across residential areas, schools, and public spaces to identify mosquito breeding sites.

During these inspections, dengue mosquito larvae were found in several homes, prompting authorities to issue notices to property owners and instruct them to immediately remove stagnant water.

The department said these inspections are part of an ongoing strategy to reduce mosquito breeding before cases increase further during peak monsoon season.

Proactive Strategy To Prevent Increase In Infections

Also read: From Heavy Floods To Extremely Humid, How Mumbai's Extreme Weather Can Impact Your Health?

The move comes after Ludhiana experienced a difficult mosquito-borne disease season last year. Official data showed the district recorded 128 malaria cases, including one death, and 538 dengue cases with one fatality, making early intervention a priority this year.

Health authorities say that increasing temperatures combined with intermittent rainfall have created favourable conditions for mosquitoes to multiply rapidly, making community participation essential in preventing another surge.

Officials are stressing that dengue and malaria are transmitted by different mosquitoes and require slightly different prevention strategies.

Dengue is spread by the Aedes mosquito, which breeds in clean, stagnant water found in coolers, flower pots, buckets, discarded tyres, and rooftop water tanks. These mosquitoes are most active during the daytime.

Malaria, on the other hand, is transmitted by Anopheles mosquitoes, which usually bite from dusk until dawn.

Eliminating breeding sites remains the most effective way to reduce the spread of both diseases.

How To Protect Yourself In Monsoon?

Doctors advise residents to watch for symptoms such as high fever, severe headache, body aches, joint pain, chills, nausea, vomiting, excessive fatigue, or skin rashes. Anyone experiencing persistent fever should avoid self-medication and seek medical care promptly.

Early diagnosis helps prevent complications, particularly in severe dengue cases where warning signs such as abdominal pain, persistent vomiting, bleeding gums, or difficulty breathing require immediate hospitalization.

Health experts recommend practising a combination of personal protection and environmental control:

• Empty and scrub water coolers, flower pots, buckets, bird baths, and other water containers at least once every week.
• Keep overhead tanks, drums, and storage containers tightly covered.
• Remove discarded tyres, plastic containers, coconut shells, and other objects that can collect rainwater.
• Wear full-sleeved clothing, especially during peak mosquito activity.
• Use mosquito repellents, coils, vaporizers, or insecticide-treated bed nets where appropriate.
• Install window and door screens to reduce mosquito entry.
• Cooperate with municipal fogging and anti-larval spraying teams when they visit your locality.

Public health officials say that preventing mosquito breeding at the household level remains the strongest defence against dengue and malaria. While health officials and their teams continue surveillance for containment, they emphasize that success depends on active community participation in keeping homes and neighbourhoods free of stagnant water.

The transport of Ebola victims' bodies across provinces in the Democratic Republic of Congo (DRC) is emerging as one of the major causes of the country's rapidly expanding Ebola outbreak. The United Nations' International Organization for Migration recently issued a warning regarding the same.

According to the IOM, the movement of deceased Ebola patients from the place of death to their home communities for traditional funeral ceremonies is increasing the risk of spreading the deadly virus into previously unaffected areas. The warning comes as eastern Congo battles its largest Ebola outbreak in years, caused by the Bundibugyo strain, for which there is currently no vaccine.

Why Transporting Bodies Of Ebola Victims So Dangerous?

As of July 14, more than 2,000 Ebola cases and over 700 deaths had been reported in Congo and neighboring Uganda.

Unlike other infectious diseases, Ebola remains highly contagious even after a patient has died. The virus can be transmitted through direct contact with bodily fluids during funeral rituals, including washing, dressing, or touching the body.

In many parts of the country, families prefer to bury loved ones in their ancestral villages, often transporting bodies over long distances, which can unintentionally increase Ebola transmission.

The IOM stated that nearly two-thirds of Ebola-related deaths have occurred outside hospitals, making it difficult for trained burial teams to manage bodies safely before they are handed over to families.

Also read: WHO Says “Fastest Growing” DRC Ebola Outbreak May Be Four Times Bigger Than Official Count As Cases Near 2,000

"If we don't really manage the dead bodies well, if we don't engage the community. Then it means there will be more spread within the community," said Andrew Mbala from IOM.

According to Reuters, the agency said that at least 105 instances where bodies were transported between districts, including one case that was linked to new Ebola infections in Congo's Tshopo province.

The IOM said the current outbreak has grown by nearly 70% within two weeks, with more than 40 new cases being reported daily, highlighting how quickly the virus is spreading.

The agency stressed that safe and dignified burial practices, developed in partnership with local communities, remain one of the most effective tools for interrupting Ebola transmission.

"Ebola remains highly infectious after death, making funeral practices a critical component of outbreak control," the IOM said in its latest update.

Community Mistrust Is Another Hurdle

Health officials say the outbreak response continues to face significant obstacles beyond the virus itself.

Community resistance, misinformation, mistrust, insecurity, and attacks on healthcare workers have hampered contact tracing, safe burials, and treatment efforts.

According to the IOM, around one in five people identified as contacts of Ebola patients cannot currently be traced, making it increasingly difficult to contain transmission chains.

The outbreak, first officially recognized in May, has already spread across multiple provinces in eastern Congo.

Public health experts fear that continued movement of infected bodies, combined with undetected community transmission, could allow Ebola to reach additional regions if containment measures are not strengthened.