Low-dose CT chest scans could help detect pneumonia in at-risk patients while exposing them to only small amounts of radiation, a new study has found. The research, published in Radiology: Cardiothoracic Imaging, shows that ultra-low-dose scans can effectively detect pneumonia in patients with compromised immune systems, enabling doctors to treat the infection before it becomes life-threatening. According to the researchers, these scans expose patients to just 2% of the radiation dose used in a standard CT scan.

"This study paves the way for safer, AI-driven imaging that reduces radiation exposure while preserving diagnostic accuracy,” lead researcher Dr Maximiliano Klug, a radiologist with the Sheba Medical Center in Ramat Gan, Israel, said in a news release. He added that CT scans are the gold standard for detecting pneumonia but there are concerns regarding the risk posed by repeated exposure to radiation. There is a solution- ultra-low-dose CT scan. However, the problem is that these scans can be grainy and hard to read, researchers said.

Study Gives Solution To This

To overcome that, Klug's team developed an AI program that could help "de-noise" low-dose scans, making them sharper and easier to read. Between September 2020 and December 2022, 54 patients with compromised immune systems who had fevers underwent a pair of chest CT scans -- a normal dose scan and an ultra-low-dose scan. The AI program cleaned up the low-dose scan, and then both sets of images were given to a pair of radiologists for assessment. Radiologists had 100% accuracy in detecting pneumonia and other lung problems with the AI-cleaned low-dose scans, but 91% to 98% accuracy in examining the scans that hadn’t been improved through AI, results show.

"This pilot study identified infection with a fraction of the radiation dose," Klug said. "This approach could drive larger studies and ultimately reshape clinical guidelines, making denoised ultra-low dose CT the new standard for young immunocompromised patients.

How Can You Detect Pneumonia?

Pneumonia is a lung infection that causes the air sacs in the lungs to fill with fluid or pus and can be caused by bacteria, viruses, or fungi. The symptoms can range from milk to severe, which includes:

Coughing with or without cough

Fever

Chills

Trouble breathing

Chest pain, especially when breathing deeply or coughing

Sweating or chills

Rapid heart rate

Loss of appetite

Bluish skin, lips, and nails

Confusion.

How to detect Pneumonia in coughing newborns and toddlers?

Pneumonia can severely affect newborns and young children as their lungs are comparatively more sensitive. As per Dr Goyal, young children can cough for various reasons including seasonal infections and tonsillitis, which is very common in this age group. But if they look visibly irritable and have poor sleep patterns, then parents must reach out to an expert. "I am not saying that parents must visit a hospital but any local paediatrician would be able to detect pneumonia in your kid.

Every baby born in England will be offered a life-saving genetic screening test for spinal muscular atrophy (SMA) from October 2027, the UK Department of Health and Social Care announced on Thursday.

The government said it will expand newborn screening for SMA across the country as part of a national evaluation program. The rollout will begin later this year, with hundreds of thousands of babies expected to be screened before universal coverage is achieved in 2027.

The decision follows campaigning for universal newborn screening by former Little Mix singer Jesy Nelson, whose twin daughters, Ocean Jade and Story Monroe Nelson, were diagnosed with the rare muscle-wasting disorder.

Calling it a "day of hope", Nelson called the move a "victory for every family affected by SMA".

When Will SMA Screening Begin?

Also read: Meet Erica Schwartz: Trump's CDC Nominee Who Pledges to 'Never Betray Science'

The SMA screening evaluation program will begin across England in autumn 2026, with laboratories starting to test newborns from October 2026—three months earlier than originally planned after the government committed to accelerating the rollout.

Almost 72% of newborns in England are already due to be tested from October under a pilot program announced in April.

From October 2027, screening will be expanded to all babies born in England, covering an estimated 560,000 to 570,000 newborns every year. Universal coverage will be achieved by increasing the number of laboratories able to carry out the testing from seven to 13.

How Will the Test Be Done?

The screening will use the routine heel-prick blood test, performed when babies are five days old.

A small blood sample collected through the heel prick will be tested for SMA alongside the 10 conditions already included in the newborn screening program, such as:

• Cystic fibrosis
• Sickle cell disease
• Congenital hypothyroidism

Why Early Detection Matters

Read More: Babies Without Vitamin K Shot At Higher Risk Of Brain Bleeding: Study

SMA can leave babies unable to sit up, crawl or walk. In its most severe forms, it can also affect breathing and swallowing.When diagnosed early, babies can receive effective treatment—including gene therapy—which can significantly improve outcomes.

"No parent should have to watch their child lose the ability to move or breathe, knowing that earlier treatment could have made all the difference," said James Murray, Secretary of State for Health and Social Care.

What Is Spinal Muscular Atrophy (SMA)?

Spinal muscular atrophy (SMA) is a rare genetic neuromuscular disorder caused by mutations in the SMN1 gene, resulting in a deficiency of the SMN protein.

The condition causes the progressive loss of motor neurons in the spinal cord, leading to severe muscle weakness and muscle wasting.

Babies with SMA may have:

• Floppy arms and legs
• Difficulty sitting, crawling or walking
• Problems with breathing and swallowing

If left undiagnosed and untreated, the most severe forms of SMA can be fatal within the first two years of life.

SMA affects around one in every 10,000 babies, with approximately 48 babies diagnosed each year in the UK.

Health officials say newborn screening will allow affected babies to receive life-changing treatment before symptoms develop.

"This is a hugely important step forward. When newborn screening for SMA begins later this year in October, thousands of babies will benefit from earlier diagnosis and access to life-changing treatment," said Giles Lomax, Chief Executive of Spinal Muscular Atrophy UK, while welcoming the announcement.

Sleep disorders have long been associated with daytime fatigue, poor concentration, and memory problems. Now, a new neuroimaging study suggests that the impact of sleep disorders could be deeper.

Researchers have found that people with sleep disorders show structural changes in brain regions involved in attention, motivation, decision-making, and emotional regulation.

The findings, published in the Nature Portfolio journal Scientific Reports, are based on one of the largest neuroimaging meta-analyses examining structural changes in the brain across multiple sleep disorders.

Common Brain Changes Due To Sleep Disorders

Researchers analyzed data from numerous brain imaging studies involving people diagnosed with various sleep disorders. The following alterations were absorbed in different regions of the brain:

• The prefrontal cortex plays a key role in planning, attention, and decision-making.
• The anterior cingulate cortex, involved in emotional regulation, conflict navigating, and motivation.
• The thalamus, which helps regulate attention and acts as a communication link between different brain regions.
• The posterior cingulate cortex, associated with examining choices, memory, and internally directed thinking.

Sleep And Brain Health

According to the researchers, disrupted sleep may interfere with the brain's ability to maintain biological functions.

Rather than affecting a single region, sleep disorders appear to impact multiple interconnected networks in the brain.

This could be why many people with chronic sleep disorders experience symptoms beyond tiredness. Some of them are:

• Difficulty concentrating
• Slower thinking
• Poor decision-making
• Reduced motivation
• Emotional instability
• Problems with memory and attention

Also read: Pediatric Sleep: The Foundation Of Healthy Growth, Behavior And Society

These symptoms are commonly reported in conditions like insomnia, obstructive sleep apnea, restless legs syndrome, and other chronic sleep disorders.

The new study adds to the evidence that healthy sleep is essential for maintaining optimum cognitive function.

Previous studies have linked sleep deprivation to poor attention, slower reflexes, increased dementia risk, and poor emotional processing.

They have also indicated that even chronic sleep deprivation can contribute to changes in brain health alongside metabolic and cardiovascular effects.

Also read: Why Are Sleep Disorder Cases Rising In Children Under 10 In South Korea?

Poor Sleep Can Also Affect Heart Health

In an earlier study, researchers discovered that even just three nights of insufficient sleep were enough to change blood chemistry, affecting heart health.

In the study, it was observed that the levels of proteins linked to a higher risk of heart disease and inflammation went up after just three nights of poor sleep.

It was further observed that while exercise had some positive effects on protein levels, it wasn't enough to completely eliminate the harm caused by not sleeping enough. Even with exercise, participants still showed increased levels of 16 proteins associated with heart disease.

The study points out how young and healthy people can face these negative biological changes from short-term sleep loss.

Bottomline

Persistent problems with falling asleep, staying asleep, excessive daytime sleepiness, or interrupted breathing during sleep deserve immediate medical attention.

As researchers continue to unravel how sleep shapes the brain, one message has become increasingly clear: quality sleep is not simply a time of rest. It is an essential biological process that supports physical health, attention span, decision-making, emotional well-being, and overall cognitive health.

Tiny plastic particles in the human body may cause serious heart attacks. A recent study observed that people who had microplastics present in their arteries supplying blood to the heart are more likely to experience severe heart attacks.

The study has raised concerns about the effects of plastic pollution on cardiovascular health.

Dangers Of Microplastics In Heart Arteries

A new study published in the European Heart Journal has found that people with microplastics present in the arteries supplying blood to the heart were more likely to experience larger and more severe heart attacks, raising concerns about the cardiovascular effects of plastic pollution.

Microplastics are plastic fragments smaller than five millimeters that originate from the breakdown of larger plastic items.

“Micro and nanoplastics are tiny plastic particles that are found virtually everywhere in the environment, including the air we breathe, the water we drink, and many foods we consume,” said Pasquale Paolisso, lead author of the study.

Although microplastics have already been detected in human blood, lungs, brain, and arteries, researchers are still trying to understand their long-term health effects.

Also read: Recovering From A Heart Attack? Avoid These Dangerous Mistakes

What Did The Study Find?

In the latest study, researchers analyzed 61 Italian patients who were treated for heart attacks and measured the presence of microplastics in blood collected from the coronary arteries.

Researchers also collected data on whether the patients were smokers and on their exposure to pollution.

“In our study, smoking history was strongly linked to microplastics in the blood. Our findings suggest that smoking might make it easier for micro and nanoplastics to enter the bloodstream via the lungs. Air pollution may act in a similar way,” Dr Emanuele Barbato, an author of the study from Sapienza University of Rome, said.

Scientists detected micro and nanoplastics in 84 per cent of patients who had heart attacks.

In comparison, only 40 per cent of patients with chronic ischemic heart disease and 32 per cent of patients with normal coronary arteries were found to have micro and nanoplastics.

Also read: US Senator & Trump's Close Ally Lindsey Graham Died Of Aortic Dissection: All About The Fatal Heart Emergency

They discovered that patients with higher levels of microplastics tended to have larger areas of heart muscle damage and greater inflammation, suggesting that these particles may be linked to more severe cardiovascular events.

“While the findings do not prove that plastics directly cause heart attacks, they strengthen the growing scientific evidence that plastic pollution is an emerging public health issue deserving serious attention,” said Thava Palanisami,” a plastic researcher at the University of Newcastle in Australia.

Built On A Landmark Study

The study is built on earlier research published in 2024, which found that patients whose arterial plaque contained microplastics and nanoplastics were more than four times as likely to suffer a heart attack, stroke, or death.

That landmark study was among the first to find that plastics accumulating inside blood vessels could have important clinical consequences.

Scientists believe microplastics may trigger chronic inflammation and oxidative stress, damage the cells lining blood vessels, and make fatty plaques in arteries more unstable. This could increase the likelihood of heart attacks.