Health
INAUGURAL NUHS SCIENTIFIC & INNOVATION SUMMIT CHAMPIONS PREDICTIVE, PRECISE AND PERSONALISED CARE
Innovation Summit
From digital twin technology to leveraging AI in tackling obesity, the NUHS Scientific & Innovation Summit is a congregation of the brightest minds in cutting-edge medicine – with patients’ utmost care at heart
SINGAPORE, Aug. 3, 2024 /PRNewswire/ — Hepatocellular carcinoma (HCC) is one of the most lethal cancers, but Mr Ang Chin Chay, 70, was in the dark about his dire condition, until he experienced a bout of fever following a vacation to Vietnam. He quickly sought medical attention for what turned out to be a Hepatitis A infection, transmitted through contaminated food he had consumed overseas.
It was a fortuitous encounter, as routine tests revealed abnormal liver function results. Mr Ang subsequently underwent scans, which uncovered HCC, a largely asymptomatic cancer in its early stages. This was unexpected as Mr Ang was known to have fatty liver, but not cirrhosis, the most advanced form of liver scarring.
“Patients with fatty liver – but without cirrhosis – are not routinely recommended to undergo liver cancer screening,” Dr Huang explained. “But in reality, we have discovered that nearly 40 percent of HCC cases related to fatty liver occur in the absence of cirrhosis.”
Mr Ang’s prognosis would have been poor if his condition had not been detected early, as patients who are diagnosed at a late stage have an overall five-year survival rate of less than 20 percent.
Improving the screening process for patients like Mr Ang through non-invasive tests and advanced imaging is the crux of Dr Huang’s work that he will be presenting at the NUHS Scientific & Innovation Summit, on 3 August 2024.
“We aim to risk stratify people with fatty liver into those who have a high risk of liver cancer and those who do not, and to pre-emptively develop better ways to identify these people early so that they can receive some form of curative treatment,” Dr. Huang explained.
Personalising care with the digital twin
Another project pushing the frontiers of medicine with digital innovations, is the Digital Twin programme led by Dr Gao Yujia, Assistant Group Chief Technology Officer, National University Health System.
The digital twin, which is based on imaging and other data from a patient’s own tests, is a virtual 3D anatomical replica of a patient’s organs, like the liver. The digital twin will allow clinicians to transform what is usually a static scan image (such as an MRI scan), into a dynamic model that precisely recreates the shape and structural behaviour of the organ it replicates, enabling enhanced pre-surgery planning and more accurate intra-operative navigation.
Together with Holomedicine, which is a mixed reality (MR) based technology, this represents a significant leap forward in the surgeons’ ability to predict how organs will behave during a surgery, and predict how internal structures will move and change as the surgery is being performed.
“Holomedicine leverages mixed reality to interact with virtual objects superimposed onto the real world, allowing for unparalleled accuracy in pre-surgical planning,” explained Dr Gao, who will be presenting his work in mixed reality technology at the NUHS Scientific & Innovation Summit.
With this near-pinpoint precision, surgeons can minimise the risk of injuring other structures, thereby reducing potential complications and operating time, ultimately improving the patient’s overall recovery outcomes.
Innovation Summit: Tackling diseases with precision
Dr Anand Jeyasekharan, a senior consultant at the Department of Haematology-Oncology in the National University Cancer Institute, Singapore (NCIS), likens the human body’s reaction to cancer cells, to an intense battle between two warring armies.
It was a battle that became personal in 2023 for Mr Soegianto Nagaria, Dr Jeyasekharan’s patient. He had a large tumour in his liver excised by surgeons in Taiwan. Initially thought to be liver cancer, the reports indicated it to be a Stage 4 diffuse large B-cell lymphoma instead. The situation worsened when the doctors discovered the presence of a second lymphoma in his bone marrow.
Diagnosing and treating two concurrent cancers presented significant challenges, requiring precise and coordinated medical intervention. It was important to know if the two cancers were related, as the treatment would be very different if they were.
Upon recommendations by his cousins, who are doctors, Mr Nagaria decided to continue the rest of his treatment at NCIS, under Dr Jeyasekharan’s care.
Mr Nagaria flew to Singapore in September 2023, and underwent a molecular profiling under an NUHS programme for precision oncology (IMAC – integrated molecular analysis of cancer) to get his tumour sequenced. Following the sequencing, the NCIS team discovered that the two lymphomas were not related and drew up the vital treatment plans, providing life-saving ammunition in the cancer battle.
Mr Nagaria completed multiple rounds of chemotherapy over six months, and is now on close monitoring while in remission.
Besides sequencing, which Mr Nagaria underwent, Dr Jeyasekharan is developing a new tool in his arsenal of weapons against deadly cancers – spatial phenotyping, where advanced imaging equipment is used to analyse cancer with high molecular detail.
Spatial phenotyping represents the next frontier of cancer research, and is especially useful for solid tumours. “We are trying to draw [battle] maps of cancer at a high resolution and in great detail, in order to understand how to fight it,” Dr Jeyasekharan explained. “Spatial phentoyping’s ability to dive deep into molecular detail allows us to be more precise in diagnostics, treatment and care.”
With cancer being a leading cause of death globally, spatial phenotyping can mean a world of difference for patients afflicted with cancer. “We are never happy with just delivering standard treatment, because standard treatment simply isn’t good enough,” Dr Jeyasekharan said. “Some people get cured, some people don’t – we are trying to understand what we can do to improve the chances of curing more people.”
For A/Prof Su Xinyi, who is a senior consultant with the Department of Ophthalmology at NUH, precision medicine may be the key to restoring the vision of patients suffering from currently untreatable and blinding retinal diseases. “Every patient with retinal disease has a unique gene mutation, so the treatment that we provide is tailored specifically to the mutations that they have,” A/Prof Su explained.
Besides gene therapy, A/Prof Su also explores innovations in cell therapy, which are last options for patients with end-stage age-related macular degeneration (AMD) – the third leading cause of blindness globally. In AMD, retinal pigment epithelium (RPE) cells in the retina degenerate with age. By growing these cells in a petri dish, and then injecting them into the eye, they can replace lost cells and help patients regain vision.
While this method of treatment is not new, what makes it unique is the source of cells A/Prof Su uses in its development – cells derived from the umbilical cord. By doing so, this greatly reduces the chance of rejection or the need to use immunosuppressants.
Predicting risk factors, a step ahead
Predictive care affords patients and clinicians the precious gift of time, in preventing the onset, or minimising the severity, of diseases. For Dr Jocelyn Chew, who is an assistant professor at the NUS Alice Lee Centre for Nursing Studies and Yong Loo Lin School of Medicine (NUS Medicine), adopting a predictive approach to tackling a person’s dietary triggers can curb overeating and obesity.
Dr Chew has been working on an app called the Eating Trigger-Response Inhibition Program (eTRIP), which is designed to help patients identify moments where they are prone to overeating. These include emotional eating, or even ingrained habits such as over-ordering during family gatherings.
eTRIP will be used in tandem with Adipoview, an AI-based dashboard that Dr Chew has created with the team from the NUHS Group Chief Technology Office. Adipoview will gather patient data throughout NUHS to generate insights, such as the diagnosis rate of obesity and treatment rate, to proactively predict who may need further support.
At the Innovation Summit
More than 60 clinician-scientists will be presenting their work at the NUHS Scientific & Innovation Summit, which will be graced by guest-of-honour Professor Tan Chorh Chuan, Permanent Secretary for National Research and Development as well as for Public Sector Science and Technology Policy and Plans Office, Prime Minister’s Office.
Themed “Tomorrow’s Health Today – Predictive, Precise and Personalised”, the summit will bring together over 500 international and local healthcare experts, opinion leaders and scientists to shape the future of healthcare.
Over the past decade, the NUHS academic health system has secured more than $1 billion in competitive grants (cumulative from FY2011 to FY2021). These funds have fuelled scientific innovations in predictive, precise and personalised care, ensuring improved health outcomes for patients now and in the future.
About National University Health System
The National University Health System (NUHS) is an integrated Academic Health System and Regional Health System in Singapore that delivers value-driven, innovative, and sustainable healthcare.
As Singapore’s only academic health system, we are uniquely positioned to draw on the academic, research and creative capabilities residing within the National University of Singapore (NUS). This collaboration allows us to develop solutions for existing and emerging health and healthcare needs of the Singapore population.
We also work in close collaboration with community hospitals, general practitioners, family medicine clinics, nursing homes and other community and social partners to provide integrated care to the wider community.
With member institutions ranging from community hospitals to academic centres, NUHS creates synergies as a fully integrated cluster to provide seamless care, develop solutions for Singapore’s healthcare challenges and nurture the next generation of healthcare professionals.
National University Health System (NUHS)
SOURCE National University Health System (NUHS)
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health and wellness
Heat waves can leave homes dangerously hot – even for young, healthy adults
Heat waves can turn homes into dangerous heat traps—especially during blackouts or in houses without AC—pushing indoor temperatures and humidity into lethal territory even for young, healthy adults, not just the elderly.
Heat waves can leave homes dangerously hot – even for young, healthy adults
Zoltan Nagy, Eindhoven University of Technology
Most people know that heat waves can be dangerous, but what they may not realize is that the heat indoors can be much worse than outdoors.
When the power goes out and air conditioning stops, or in homes without cooling, a house starts to function like a greenhouse during a heat wave. Heat enters through windows and walls and has nowhere to go. Air stagnates.
Within hours, indoor temperatures can climb well above what the thermometer shows outside, especially on upper floors and in rooms with south-facing windows. Over longer periods, especially if temperatures don’t cool off overnight, conditions can become lethal.
Most heat-related deaths occur indoors. When a heat dome sent temperatures soaring in the Pacific Northwest in 2021, 98% of the more than 600 deaths in British Columbia happened inside homes. Washington and Oregon also saw high numbers of deaths in homes that lacked air conditioning.
In Europe, where only 1 in 10 households have air conditioning, heat waves killed an estimated 60,000 people in 2022 and 47,000 in 2023, largely inside buildings never designed for these temperatures.
People of all ages are at risk in heat waves like these. I spent eight years at the University of Texas at Austin studying how buildings respond to extreme heat. In a recent study, my team assessed the heat risk in every single-family home in Austin.
We found that even younger, healthy adults face far more risk than they realize.
How hot is too hot for a human body?
Your body maintains a core temperature of about 98.6 degrees Fahrenheit (37 degrees Celsius). To cool down, it pushes blood to the skin and sweats. But when air temperature is high, that convective cooling weakens. When humidity is also high, sweat cannot evaporate.
If the body has no way to release heat, core temperature rises. If the core temperature increases past about 104 F (40 C), the body’s thermoregulation starts to fail. Past 109 F (42.8 C), death becomes likely.
What makes indoor heat especially dangerous is that it does not let up at night in homes that lack air conditioning. Outdoor temperatures typically drop after sunset, and someone outside can get a few hours of recovery. But a poorly insulated home that has been absorbing heat all day releases that heat slowly, keeping indoor temperatures elevated through the night. A person inside the home never gets a break.
After two or three nights of this, even healthy people start to be at serious risk for heat-related illnesses.
Why homes heat up more than people expect
People tend to underestimate indoor heat for a few reasons.
One is that the thermostat typically sits on one wall in one room. It does not tell what the temperature is in an upstairs bedroom or near a sun-facing window. In older, underinsulated homes, the actual felt temperature can exceed 90 F (32.2 C) even when a thermostat reads 75 F (23.9 C). The hot walls, ceilings and windows can radiate heat directly onto your body.
Another reason is that people assume all homes respond to heat the same way. However, a newer home with double-pane windows and good insulation acts like a thermos, keeping heat out for a longer time. An older home with single-pane windows and cracks in the walls heats up fast.
Two houses on the same street, exposed to the same outdoor conditions, can have completely different temperatures inside. And in a blackout, where neither home has cooling, those differences can become a matter of life and death.
What we found in Austin
Our study combined two datasets. From Austin’s tax appraisal records, we pulled basic property information, such as the year the home was built, the size and the number of stories for each of the city’s 213,000 single-family homes. We then matched each home to the most similar energy simulation models in a U.S. Department of Energy database that contains thousands of detailed, physics-based building energy models representing the U.S. residential building stock.
Using those models, we simulated each building’s indoor temperatures over time during a three-day heat wave and power outage with outdoor temperatures above 110 F (43 C).
We found that 85% of homes got hot enough to pose a significant risk of death for an elderly occupant. But what surprised us was the risk to younger people.
Under today’s climate conditions in Austin, about 15% of homes already have the potential to get hot enough without air conditioning to pose serious heat risks to healthy adults. Under future warming scenarios, that number jumps to as high as 65% if average summer highs reach 104 F (40 C). Further, climate projections for Austin show that heat waves will double in frequency by the end of the century.
We found three types of buildings and accompanying risks:
- Resilient homes, which are newer and well insulated, tended to have temperature and humidity conditions that would be survivable for an elderly occupant throughout the simulated heat wave with blackout.
- Critical-risk buildings, which are mostly older homes, became dangerous almost immediately.
- And then there was the middle group – homes where temperatures rose slowly during the simulated blackout, day by day, possibly giving occupants a false sense of security until it was too late.
Texas has already seen conditions like our case study’s – a heat wave paired with a power outage. In 2024, a derecho knocked out power for nearly 900,000 Houston households while the heat index climbed to 100 F (37.8 C). Seven weeks later, Hurricane Beryl cut power to 2.6 million homes, leaving them without power for over three days, with temperatures over 90 F (32.2 C).
What you can do to stay safe
If you can’t get cooling at home, there are steps you can take that can help.
Move to the lowest floor of your home, where it will be coolest. Close the blinds and curtains on sun-facing windows. Drink water constantly to stay hydrated, which is essential for regulating body temperature.
If you’re facing a blackout, be sure to also check on elderly neighbors, especially those living alone. You can also try to find a public cooling center; many cities now open them during heat emergencies.
Longer term, upgrades such as reflective window film, attic insulation and lighter-colored roofing can reduce how much a home heats up. After the 2021 heat dome, British Columbia’s coroner recommended updating building codes to address heat.
Our own findings point in the same direction: We propose that new homes should be required by building codes to maintain conditions in which at least light physical activity remains possible for all occupants for at least 72 hours during a power outage.
As summers get hotter with climate change and blackouts become more frequent, the risks of people suffering heat illnesses will only continue to rise.
Zoltan Nagy, Professor of Building Services, Eindhoven University of Technology
Heat waves can leave homes dangerously hot – even for young, healthy adults
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Lifestyle
Social media before bedtime wreaks havoc on our sleep − a sleep researcher explains why screens alone aren’t the main culprit
Social Media Before Bedtime? A sleep researcher explains why late-night social media disrupts sleep less because of screens and blue light, and more because of emotional engagement—doomscrolling, social comparison, habitual checking and FOMO—that keeps the brain aroused and delays rest.
Brian N. Chin, Trinity College
“Avoid screens before bed” is one of the most common pieces of sleep advice. But what if the real problem isn’t screen time − it’s the way we use social media at night?
Sleep deprivation is one of the most widespread yet overlooked public health issues, especially among young adults and adolescents.
Despite needing eight to 10 hours of sleep, most adolescents fall short, while nearly two-thirds of young adults regularly get less than the recommended seven to nine hours.
Poor sleep isn’t just about feeling tired − it’s linked to worsened mental health, emotion regulation, memory, academic performance and even increased risk for chronic illness and early mortality.
At the same time, social media is nearly universal among young adults, with 84% using at least one platform daily. While research has long focused on screen time as the culprit for poor sleep, growing evidence suggests that how often people check social media − and how emotionally engaged they are − matters even more than how long they spend online.
As a social psychologist and sleep researcher, I study how social behaviors, including social media habits, affect sleep and well-being. Sleep isn’t just an individual behavior; it’s shaped by our social environments and relationships.
And one of the most common yet underestimated factors shaping modern sleep? How we engage with social media before bed.
Emotional investment in social media
Beyond simply measuring time spent on social media, researchers have started looking at how emotionally connected people feel to their social media use.
Some studies suggest that the way people emotionally engage with social media may have a greater impact on sleep quality than the total time they spend online.
In a 2024 study of 830 young adults, my colleagues and I examined how different types of social media engagement predicted sleep problems. We found that frequent social media visits and emotional investment were stronger predictors of poor sleep than total screen time. Additionally, presleep cognitive arousal and social comparison played a key role in linking social media engagement to sleep disruption, suggesting that social media’s effects on sleep extend beyond simple screen exposure.
I believe these findings suggest that cutting screen time alone may not be enough − reducing how often people check social media and how emotionally connected they feel to it may be more effective in promoting healthier sleep habits.
How social media disrupts sleep
If you’ve ever struggled to fall asleep after scrolling through social media, it’s not just the screen keeping you awake. While blue light can delay melatonin production, my team’s research and that of others suggests that the way people interact with social media may play an even bigger role in sleep disruption.
Here are some of the biggest ways social media interferes with your sleep:
- Presleep arousal: Doomscrolling and emotionally charged content on social media keeps your brain in a state of heightened alertness, making it harder to relax and fall asleep. Whether it’s political debates, distressing news or even exciting personal updates, emotionally stimulating content can trigger increased cognitive and physiological arousal that delays sleep onset.
- Social comparison: Viewing idealized social media posts before bed can lead to upward social comparison, increasing stress and making it harder to sleep. People tend to compare themselves to highly curated versions of others’ lives − vacations, fitness progress, career milestones − which can lead to feelings of inadequacy and anxiety that disrupt sleep.
- Habitual checking: Social media use after lights out is a strong predictor of poor sleep, as checking notifications and scrolling before bed can quickly become an automatic habit. Studies have shown that nighttime-specific social media use, especially after lights are out, is linked to shorter sleep duration, later bedtimes and lower sleep quality. This pattern reflects bedtime procrastination, where people delay sleep despite knowing it would be better for their health and well-being.
- Fear of missing out, or FOMO: The urge to stay connected also keeps many people scrolling long past their intended bedtime, making sleep feel secondary to staying updated. Research shows that higher FOMO levels are linked to more frequent nighttime social media use and poorer sleep quality. The anticipation of new messages, posts or updates can create a sense of social pressure to stay online and reinforce the habit of delaying sleep.
Taken together, these factors make social media more than just a passive distraction − it becomes an active barrier to restful sleep. In other words, that late-night scroll isn’t harmless − it’s quietly rewiring your sleep and well-being.
How to use social media without sleep disruption
You don’t need to quit social media, but restructuring how you engage with it at night could help. Research suggests that small behavioral changes to your bedtime routine can make a significant difference in sleep quality. I suggest trying these practical, evidence-backed strategies for improving your sleep:
- Give your brain time to wind down: Avoid emotionally charged content 30 to 60 minutes before bed to help your mind relax and prepare for sleep.
- Create separation between social media and sleep: Set your phone to “Do Not Disturb” or leave it outside the bedroom to avoid the temptation of late-night checking.
- Reduce mindless scrolling: If you catch yourself endlessly refreshing, take a small, mindful pause and ask yourself: “Do I actually want to be on this app right now?”
A brief moment of awareness can help break the habit loop.
Brian N. Chin, Assistant Professor of Psychology, Trinity College
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Lifestyle
Your Medicare Roadmap: What to Know Before You Turn 65
Sixty-five is more than a number. It’s a milestone. A moment to reflect on where you’ve been and look forward with confidence to what comes next. For millions of Americans, turning 65 also means unlocking one of the most valuable benefits you’ve earned: Medicare.
Last Updated on July 1, 2026 by Daily News Staff
(Feature Impact) Sixty-five is more than a number. It’s a milestone. A moment to reflect on where you’ve been and look forward with confidence to what comes next. For millions of Americans, turning 65 also means unlocking one of the most valuable benefits you’ve earned: Medicare.
The best is still ahead, and it starts with knowing your options. The official source for Medicare information, Medicare.gov, is here to help with clear, trusted information.
The path to Medicare is not the same for everyone. Some people get Medicare automatically and others have to sign up. It depends on whether you are already getting Social Security. Either way, you’ll want to choose how you get your Medicare coverage.
Get information for your path at Medicare.gov, where you can find out when and how to enroll and explore your coverage options.
Understanding Your Medicare Coverage Options
When you first sign up for Medicare, you choose how to get your coverage. There are two main options: Original MedicareandMedicare Advantage.
Original Medicare is health coverage provided directly by the federal government. It has two parts:
- Part A (Hospital Insurance) covers inpatient hospital stays, skilled nursing facility care, hospice care and home health care. Most people pay no premium for Part A.
- Part B (Medical Insurance) covers doctor visits, outpatient care, preventive services (like screenings, vaccines and annual wellness visits) and durable medical equipment like wheelchairs and walkers. The standard Part B premium is $202.90 per month and is typically deducted from your Social Security check.
With Original Medicare, you can visit any doctor or hospital in the U.S. that accepts Medicare. You can also add optional coverage to help manage costs:
- Medigap (Supplemental Insurance) helps pay your share of Medicare costs.
- Part D (Prescription Drug Coverage) helps pay for medications.
Medicare Advantage is an alternative to Original Medicare that provides Part A and Part B and is offered by private insurers approved by Medicare. You still pay the Part B premium. Some plans charge an additional premium – though many carry a $0 plan premium and may even help cover part of your Part B cost. Most plans include in Part D drug coverage along with extra benefits like dental, vision and hearing. Keep in mind most plans require you to use doctors within the plan’s network.
5 Steps to Enroll with Confidence
- Use official sources. Go to Medicare.gov or call 1-800-MEDICARE for step-by-step, personalized guidance on coverage and enrollment.
- Start early. You don’t have to wait until your birthday. Explore your options now so you’re ready when your enrollment window opens.
- Know your enrollment path. Your path depends on your circumstances – some people are automatically enrolled and some are not. There are unique steps for people who are still working.
- Avoid late enrollment penalties. Missing your enrollment window can result in a permanent premium penalty for both Part B and Part D. Signing up on time protects your wallet for years to come.
- Compare plans and save. At Medicare.gov, you can compare plan costs side-by-side, based on the specific drugs you take. A quick comparison could save you money each year. You can also confirm your current doctors are in-network before you choose a plan.
Turning 65 is a milestone worth celebrating and it’s the perfect time to focus on what matters most: your health and well-being. That includes eating well, exercising and making sure you have health insurance that fits your needs. There’s no one-size-fits-all plan. What’s important is finding an option that works for you and your health and financial needs.
Start your journey at Medicare.gov – your roadmap to a healthier and confident future.
Information provided by the U.S. Department of Health and Human Services
Photos courtesy of Shutterstock
SOURCE:
Centers for Medicare & Medicaid Services
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