Health
Dementia cases are on the rise — avoid these 12 risks to keep your brain healthy
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By Kayode Sanni-Arewa
It is a condition that can be caused by a number of diseases that gradually destroy nerve cells and damage the brain, resulting in a decline in cognitive functions, according to the World Health Organization.
With the advancement of medicine, science and technology, people are living longer lives and the world’s aging population is growing at an unprecedented rate, raising the risk of a larger cohort of people living with dementia
“As the global population of older adults continues to rise, the number of people living with dementia is also expected to grow, reaching approximately 139 million dementia cases by the year 2050,” according to a recent report. As of 2023, there were more than 55 million people with dementia globally, according to the WHO.
By 2050, the population of people aged 65 and older will double to 2.1 billion, according to the World Health Organization.
Dementia risks
“Dementia is currently the seventh leading cause of death and one of the major causes of disability and dependency among older people globally,” according to the WHO, with nearly 10 million new cases of dementia every year.
Although there is no cure for the condition, according to research published in 2023 by the WHO, psychologists and researchers are working to prevent its onset.
While age is still the strongest known risk factor for dementia, researchers have found a set of 12 “potentially modifiable risk factors,” according to The Lancet Commission’s 2020 report:
Less education
Hypertension
Hearing impairment
Smoking
Obesity
Depression
Physical inactivity
Diabetes
Low social contact
Excessive alcohol consumption
Traumatic brain injury
Air pollution
“Together the 12 modifiable risk factors account for around 40% of worldwide dementias, which consequently could theoretically be prevented or delayed,” according to The Lancet.
While socioeconomic status and education levels can impact the onset of dementia, particularly in early life, several other risks can be avoided, according to the study.
“What we currently know is — what’s good for your heart is good for your brain, and that’s because there are a lot of vascular risk factors for dementia,” Timothy Singham, Clinical Psychologist and Adjunct Senior Lecturer at the National University of Singapore, told CNBC Make It.
So, a lack of physical exercise, eating unhealthy foods, not getting enough sleep, drinking alcohol excessively as well as smoking puts a strain on your brain and risks developing future impairments, just like these pose a risk to one’s heart, said Singham.
While a healthy body can mitigate dementia risks, a healthy mind is no less important.
“We do know [that] people who have cumulative mental health symptoms during their lifetime, actually [have] an increased risk of dementia,” said Singham.
“If we see symptomatic improvement [to one’s mental health] throughout the life course, then that can decrease your chances of having dementia eventually.”
How to cut risks
Here are five key “protective factors” or things people can do to help prevent the onset of dementia:
Regular physical activity
Eating healthy
Building a healthy support network
Having good sleep hygiene
Find ways to regulate stress and emotions
It can be easy to get wrapped up in the quick pace of daily life, so it’s important to take breaks.
“Your mental health suffers really quickly if you’re not — physically active, you don’t get to breathe, you don’t get to see nature much, you’re cooped up in the office or at home all day,” Singham said.
Additionally, it is crucial to build a healthy support network, not just online, but also in-person.
“I think a lot of young people are [leaning on their] online social networks — but we need to not give up the face-to-face [meetups] with friends,” Ng Ai Ling, Deputy Director and Principal Counsellor at Viriya Community Services told CNBC Make It.
“The other thing I would encourage young people to do is have a very disciplined, good sleep hygiene because our brains really really need to rest,” Ng said. She suggests getting at least seven hours of sleep every night.
Lastly, finding ways to regulate emotions and stress is crucial. Finding professional help when required or leaning on your support network are ways to protect your mental health, in addition to the daily upkeep of maintaining a healthy diet, exercise and sleep.
Loved ones’ struggle
As dementia cases continue to rise, mental health professionals expect its impact to extend beyond just those who are directly affected.
“The caregiver themselves are struggling to understand the illness — you lose someone to the illness, and the person who you used to be able to relate to and communicate [with] is no longer the same,” Ng said.
Caregivers and loved ones may risk developing mental health problems such as anxiety, depression and insomnia, Ng explained.
“Suddenly — someone you’re familiar with, and that person is forgetting you, and [they are] unable to perform as [they did] before the illness … There is this emotional distress that you go through,” she said.
Given the challenging situation, it is also important for people around a dementia patient to take care of their own mental and physical health as well, experts said.
Health
NARD Issues 21-Day Ultimatum To FG Over Attacks On Doctors
The Nigerian Association of Resident Doctors (NARD) has issued a 21-day ultimatum to the Federal Government to start implementing a national framework for the protection of healthcare workers, following a growing wave of attacks on medical personnel across the country.
NARD issued the ultimatum at a press briefing to end its Ordinary General Meeting (OGM), which took place in Kano. It also declared an industrial dispute with the government over 14 unresolved demands affecting the health sector.
According to the union’s president, Mohammad Suleiman, the rising cases of assault, intimidation, harassment and violent attacks on doctors pose a serious threat to Nigeria’s already fragile healthcare system.
“The OGM observed with grave concern the disturbing rise in cases of assault, harassment, intimidation and violent attacks against doctors across the country while discharging their professional duties.”
Suleiman described the trend as “barbaric, unacceptable and a dangerous threat” to the survival of the health system.
As part of its resolutions, the association demanded the immediate investigation, arrest, and prosecution of perpetrators of attacks on health workers, while urging the government and security agencies to strengthen protection for medical personnel and facilities nationwide. He further added that,
“Consequently, the OGM gives the Federal Government a 21-day window to commence concrete actions towards the development and implementation of a National Healthcare Workers Assault Prevention and Response Protocol, as well as the initiation of the necessary legislative process to address this menace.”
These include the immediate release and payment of the 2026 Medical Residency Training Fund (MRTF), which the association noted remains unpaid despite repeated assurances.
“The OGM demands the release and payment of the 2026 Medical Residency Training Fund to all eligible resident doctors nationwide within the next 21 days,” Suleiman said.
The association also demanded payment of outstanding 25/35 per cent CONMESS arrears, settlement of 19 months of unpaid professional allowance arrears, and clearance of salary and promotion arrears across federal and state health institutions.
It called for correction of discrepancies in professional allowance payments made in May 2026 and settlement of all related arrears.
Welfare and Recruitment Concerns
NARD raised concerns over worsening welfare conditions for house officers, including salary delays, unpaid arrears, and challenges in internship placement and onboarding.
It also demanded full implementation of outstanding provisions in the Medical and Health Workers’ Collective Bargaining Agreement (CBA) and urged government action on excessive workload, prolonged call-duty hours, casualisation of doctors, and abusive locum appointments.
Suleiman criticised delays by the Federal Character Commission (FCC) in issuing compliance letters, saying it has stalled recruitment and worsened manpower shortages in the health sector.
“The OGM demands the immediate issuance of a letter of compliance by the Chairperson of the FCC within the next 21 days to facilitate employment of healthcare workers and avert further worsening of the brain drain crisis,” the NARD chief said.
The association also called on federal and state tertiary health institutions to urgently address welfare, remuneration, infrastructure, and staffing challenges.
It specifically highlighted unresolved disputes at the Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, and the Lagos University Teaching Hospital (LUTH), including provision of call meals and alleged victimisation of doctors.
Industrial Dispute Declared
While commending the governors of Osun and Kano states, Ademola Adeleke and Abba Kabir Yusuf, respectively, for interventions in the health sector, NARD warned that failure to meet its demands could trigger further industrial action.
“The Association hereby declares an industrial dispute with the Federal Government on the outlined matters above and cannot guarantee industrial harmony after the 21-day window,” it said.
He added that the association’s National Officers Committee would engage stakeholders during the ultimatum period, after which the National Executive Council would determine the next line of action.
Health
How to cope with rainy season illnesses
For many Nigerians, the arrival of the rainy season brings relief from the scorching heat that characterises the dry months. Farmers look forward to improved crop yields, reservoirs begin to fill up, and residents enjoy cooler temperatures. But alongside these benefits comes a familiar challenge: a rise in illnesses that thrive during the wet season.
Across communities, hospitals and clinics often record increased cases of malaria, typhoid fever, cholera, diarrhoea, respiratory infections and skin diseases. Heavy rainfall frequently leads to flooding, stagnant water, poor sanitation and contamination of food and water sources, creating ideal conditions for disease outbreaks.
In separate chats with Weekend Trust, health experts said that while these illnesses may be common during the rainy season, they are largely preventable when individuals and communities adopt the right coping mechanisms.
Godwin Ekuwke, a medical practitioner at the Kubwa General Hospital, said the key lies in prevention rather than treatment.
“The rainy season does not have to become a season of sickness. Most of the illnesses we see during this period can be prevented through environmental cleanliness, good hygiene and timely medical attention. Communities must understand that prevention is always cheaper and more effective than treatment,” he said.
Experts stress that awareness remains one of the strongest weapons against seasonal diseases. Knowing the health risks associated with the rains can help families take proactive measures before illnesses strike.
Malaria: The most common threat
Malaria remains the most widespread illness during the rainy season. The disease is transmitted by female anopheles mosquitoes, which breed rapidly in stagnant water found in blocked gutters, abandoned containers, potholes and flood-prone areas.
With increased rainfall creating numerous breeding sites, mosquito populations often soar.
Grace Jegede, a public health physician, explained that many malaria cases could be avoided if people paid greater attention to environmental sanitation.
“When rainwater accumulates around homes, it creates perfect breeding grounds for mosquitoes. Residents should ensure that gutters are cleared, water containers are covered, and stagnant water is removed from their surroundings,” she advised.
She further encouraged the consistent use of insecticide-treated mosquito nets.
“Sleeping under treated mosquito nets remains one of the most effective methods of preventing malaria. Families should make it a routine practice, particularly for children and pregnant women who are more vulnerable to severe complications,” she said.
Jegede also warned against self-medication whenever fever develops, saying, “Not every fever is malaria. People should seek a proper diagnosis at health care facilities before taking medication. Early test leads to accurate treatment and reduces complications.”
Health workers say residents can further reduce their risk by wearing protective clothing during the evening hours and using approved mosquito repellents where necessary.
Waterborne diseases lurking in floodwaters
As floodwaters spread through communities during heavy rainfall, another set of health threats emerges. Contaminated water sources often become breeding grounds for dangerous diseases, such as cholera, typhoid fever and acute diarrhoea.
Many outbreaks occur when sewage, refuse, and floodwaters mix with drinking water sources.
A community health practitioner, Dr Aliyu Isah, described water contamination as one of the biggest public health concerns during the rainy season.
“Floodwater carries bacteria, viruses and other harmful organisms into wells, streams and storage containers. Once people consume contaminated water, outbreaks can occur very quickly,” he explained.
To prevent infection, he urged households to prioritise water safety. “Whenever the quality of water is uncertain, it should be boiled before drinking. Water purification tablets and filtration systems can also help. Equally important is keeping storage containers covered at all times,” he advised.
Hand hygiene also plays a significant role in reducing disease transmission.
“Regular hand-washing with soap and clean water before meals and after using the toilet can dramatically reduce cases of diarrhoeal diseases. It is one of the simplest but most effective public health interventions,” he added.
Dr Benjamin Olayiwola, another medical doctor, noted that typhoid fever often increases during periods of poor sanitation.
“People must pay attention to food hygiene. Fruits should be washed thoroughly, meals should be freshly prepared and food should only be purchased from hygienic environments. Prevention begins with the choices we make every day,” Olayiwola said.
He cautioned against indiscriminate use of antibiotics, saying, “Many people treat themselves without proper diagnosis. This can worsen antibiotic resistance and make infections more difficult to manage in the future.”
Respiratory, skin infections on the rise
The rainy season also creates conditions that favour respiratory illnesses, such as common cold, influenza, bronchitis and pneumonia.
Frequent exposure to cold weather, damp clothing and overcrowded indoor environments often contributes to the spread of infections.
According to Dr Amina Abudullahi, a consultant physician, maintaining a healthy immune system is crucial during this period.
She said, “When people spend prolonged periods in wet clothing or poorly ventilated environments, they become more vulnerable to respiratory infections. Staying warm, maintaining good nutrition and practising personal hygiene can significantly reduce the risk.”
She encouraged residents to consume balanced diets rich in fruits and vegetables.
“The body needs adequate nutrients to fight infections. A healthy diet, proper hydration and sufficient rest are important protective measures during the rainy season,” she added.
In addition to respiratory illnesses, skin conditions also become more common.
A dermatologist, Chukwuemeka Ada, said fungal infections frequently increased because of persistent moisture.
“We often see more cases of fungal infections affecting the feet, skin folds and other parts of the body during the rainy season. Moisture creates an environment where fungi thrive,” she said.
She advised residents to maintain proper skin care habits: “After exposure to rain or floodwater, individuals should wash with clean water and soap and dry their skins thoroughly. Footwear should also be kept clean and dry to prevent fungal growth.”
Ada added that cuts and wounds should never be ignored, explaining, “Even small injuries can become infected if they are not cleaned properly. Prompt treatment can prevent more serious complications,” she said.
Prevention remains the best medicine
While health care facilities play an important role in treating illnesses, experts agree that prevention remains the most effective strategy.
Across Nigeria, communities are encouraged to embrace environmental sanitation initiatives aimed at reducing disease risks during the rainy season.
Dr Jegede stressed that collective action is essential. She said, “Individual efforts are important but community participation produces greater results. When residents work together to clear drainages, dispose of waste properly and eliminate stagnant water, everyone benefits.”
Health practitioners also recommend that households prepare basic emergency supplies, including oral rehydration salts, antiseptics, soap, clean drinking water and first-aid materials.
Parents are advised to monitor children closely for symptoms, such as fever, diarrhoea, persistent cough, breathing difficulties or unusual weakness and seek medical care promptly.
Ekuwke believes that public education must continue throughout the rainy season.
“People need consistent reminders about hygiene, sanitation and disease prevention. Awareness saves lives because informed individuals are more likely to take preventive action,” he said.
For vulnerable groups such as pregnant women, infants, elderly persons and those living with chronic illnesses, extra caution is necessary.
“These groups often suffer the most severe consequences when infections occur. Early medical attention can make a significant difference,” he noted.
As the rains continue to fall across the country, experts insist that Nigerians should not view seasonal illnesses as inevitable. With proper sanitation, safe drinking water, mosquito control measures, healthy living habits and prompt medical attention, many rainy season diseases can be prevented.
“The rains should bring growth and renewal, not sickness and suffering. When communities embrace preventive measures, they protect not only themselves but also their neighbours,” Dr Abudullahi said.
Health
FG heightens Ebola alert, strengthens border controls, emergency response systems
The Federal government has intensified border screening, disease surveillance and emergency response measures nationwide as part of efforts to prevent the possible importation of the Bundibugyo strain of Ebola Virus Disease (EVD), currently circulating in parts of East and Central Africa.
The Federal Ministry of Health and Social Welfare, in a statement on Tuesday by its Assistant Director of Press and Public Relations, Ado Bako, said it has activated enhanced preparedness protocols across the country, including stricter screening procedures at airports, seaports and land borders.
According to the Ministry, arriving travellers are now subject to temperature checks using infrared thermal scanners and handheld thermometers, while health declaration forms, travel history assessments and risk-based screening procedures are being reinforced at designated points of entry.
The Ministry also disclosed that isolation, secondary screening and referral mechanisms have been strengthened for travellers showing symptoms consistent with viral haemorrhagic fevers.
It added that coordination has been expanded among immigration, aviation, maritime and border management agencies to improve early detection and response.
The heightened measures have become imperative following reports of outbreaks of the Bundibugyo ebolavirus disease in parts of the East and Central African region, raising concerns about the risk of cross-border transmission.
Despite the alert, the Ministry reassured Nigerians that there is currently no confirmed case of Ebola Virus Disease in the country.
As part of surveillance efforts, the Ministry said Integrated Disease Surveillance and Response (IDSR) activities have been strengthened nationwide, alongside expanded community-based and event-based surveillance systems.
It said public health alerts and rumours are being actively monitored and investigated, while continuous epidemiological assessments are being conducted in collaboration with regional and international health partners.
To boost emergency response readiness, the Ministry said specimen collection and transportation systems for viral haemorrhagic diseases have been enhanced, while laboratory biosafety and biosecurity measures are being reinforced.
Public Health Emergency Operations Centres have also been placed on alert, with Rapid Response Teams at national and sub-national levels ready for deployment if necessary.
Healthcare facilities have been directed to maintain a high index of suspicion for viral haemorrhagic fevers, strengthen triage systems, promptly isolate suspected cases and comply with established reporting procedures.
The Ministry added that healthcare workers, surveillance officers and other frontline personnel are undergoing continuous preparedness training, while infection prevention and control measures are being reinforced in health facilities nationwide.
It urged Nigerians to remain calm, avoid misinformation and rely only on information from recognised public health authorities.
Members of the public were advised to maintain regular hand hygiene, avoid contact with bodily fluids of symptomatic persons, refrain from handling dead animals or bushmeat from unknown sources, and promptly report unusual illnesses or deaths to the nearest health authority.
The Ministry assured it would continue to monitor developments closely and provide updates as necessary.
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