Blue light emitted by devices like smartphones, computers, and televisions is becoming a major factor disrupting our sleep cycles. Research reveals that a significant number of Americans use electronic devices close to bedtime, contributing to poor sleep quality. Reducing exposure to blue light, particularly in the evening, is a simple yet effective way to help your body prepare for restful sleep.

What Is Blue Light?

How Does Blue Light Impact Circadian Rhythms?

Circadian rhythms are 24-hour cycles that control essential bodily functions, including sleep. Light is the primary factor that aligns these rhythms with day and night. Historically, exposure to sunlight during the day helped set our body clocks, signaling when to be awake and when to sleep. However, the widespread use of artificial lighting and electronic devices has introduced more light exposure after dark, disrupting these natural cycles.

Blue light, in particular, has the strongest impact on circadian rhythms. During daylight hours, blue light helps us feel alert by stimulating the brain, raising body temperature, and increasing heart rate. But in the evening, exposure to blue light can confuse the body’s internal clock, suppressing melatonin—the hormone responsible for making us feel sleepy. As a result, our brains may remain in “daytime mode,” preventing us from winding down for the night.

Health Consequences Of Disrupted Sleep

Persistent disruption of circadian rhythms can lead to a range of health issues, including metabolic disorders, poor mental health, and increased risk for conditions like depression and anxiety. Furthermore, the inability to sleep well at night affects cognitive performance, mood, and overall well-being. Chronic exposure to blue light in the evening may significantly contribute to these negative health outcomes.

Devices That Emit Blue Light

Many common devices in our daily lives emit blue light, including:

- Smartphones and tablets

- Computer monitors and laptops

- Televisions and e-readers

- LED and fluorescent lighting

- Video game consoles

How To Minimize Blue Light Exposure

To reduce the effects of blue light on your sleep, here are some practical strategies:

1. Turn off screens before bed: Try to avoid using electronic devices at least two to three hours before bedtime. Reducing screen time helps prevent blue light from interfering with melatonin production.

2. Adjust your lighting: Dim your home’s lights or switch to warmer-toned lighting in the evening. You can also use lamps with red or orange light, which are less likely to impact your circadian rhythms.

3. Night mode settings: Many smartphones and computers have a "night mode" feature that reduces blue light emission. Make use of these features to limit exposure in the hours leading up to bedtime.

4. Blue light-blocking glasses: Special glasses designed to filter out blue light may be helpful for some individuals. These glasses can block or reduce the melatonin-suppressing effects of blue light.

5. Apps for blue light reduction: There are several smartphone and computer apps available that reduce blue light emission, allowing you to use your devices before bed without disturbing your sleep.

6. Create a sleep-friendly environment: If you can’t control light sources in your bedroom, consider using an eye mask to block out ambient light and promote better sleep.

Norovirus appears to be increasing after a 57 percent jump in hospital admissions linked to the sickness bug last week. Figures from the NHS show that an average of 567 hospital beds were occupied each day by patients suffering from diarrhoea and vomiting. Although this number remains well below last winter’s peak, the sudden rise over just one week has raised concerns that norovirus infections could soon climb further.

Experts believe the return of children to school and more indoor contact following the Christmas break may be helping the virus spread.

Why Does Norovirus Spread So Easily?

Jason Murphy, head of pharmacy at Chemist4U, as per The Mirror, said the virus is often underestimated. “Norovirus spreads far more easily than people realise. Even a very small amount can make you ill, and it can stay on surfaces for several days. As cases continue to climb, it’s important to move beyond basic hygiene and take more focused steps to protect yourself and others. Many people think norovirus is a short-lived illness, but it’s very persistent and passes on easily.”

Murphy added that pharmacists tend to approach norovirus from two angles. “We focus on stopping it from spreading and on helping the body cope while the infection passes. There’s no treatment that kills the virus itself, but there are ways to ease symptoms and lower the risk of problems like dehydration.”

Advice To Prevent The Spread Of Norovirus

Treat it as a hard-to-kill infection – Norovirus is classed as a non-enveloped virus, which means alcohol hand gels and many everyday cleaners do not work against it. Washing hands with soap and warm water removes the virus physically, while bleach can neutralise it on surfaces.

Use the right cleaning products – Choose disinfectants that clearly state they are virucidal or effective against non-enveloped viruses. If this is not mentioned, the product is unlikely to kill norovirus.

Get bleach dilution right – Bleach needs to be mixed correctly. If it is too diluted, it will not kill the virus. If it is too strong, it can irritate the skin and lungs. Always ventilate the room well and follow the instructions on the label.

Treat vomiting as contamination – In healthcare settings, vomiting is handled as a form of airborne exposure. Clean beyond the visible mess, air out the space properly, and assume nearby soft furnishings may also be contaminated.

Create isolation at home – If possible, give the unwell person their own bathroom, towels, and bin. This mirrors hospital infection control measures and helps limit the spread to others.

How To Ease Norovirus Symptoms?

Focus on rehydration – Dehydration is the most serious risk linked to norovirus. Electrolyte drinks are more effective than water alone because they replace lost salts as well as fluids.

Take fluids slowly – Sip small amounts every five to ten minutes instead of drinking large volumes at once. This helps reduce vomiting and allows the body to absorb fluids better.

Pain relief – Once fluids are staying down, paracetamol is the safest option for fever, headaches, and muscle aches. Ibuprofen should be avoided if you are dehydrated or vomiting frequently, as it can irritate the stomach and strain the kidneys.

Be careful with anti-diarrhoea medicines – Drugs such as loperamide can slow diarrhoea, but this is not always advised because diarrhoea helps flush the virus out. These medicines may be used briefly in specific situations, such as essential travel, but should not be given to children or used if there is a fever or blood in the stool.

Help with nausea – For severe sickness, a pharmacist can recommend anti-nausea treatments. If vomiting continues, a GP may prescribe medication to help control symptoms so fluids can be kept down.

Eat gently when ready – Once your appetite comes back, start with plain foods like toast, crackers, bananas, or rice. Avoid rich, spicy, or dairy-heavy foods until you feel better.

Rest as part of recovery – The immune system clears norovirus on its own. Getting enough rest supports recovery and helps prevent further complications.

The takeaway coffee cup in your hand may be releasing a sea of microplastics into your body every time you take a sip, a new study reveals.

Microplastics are essentially fragments of plastic that are between 1 nanometer and 5 millimetres wide and can found in water, soil and the air. Experts estimate that about 2.7 million tonnes of microplastics seeped into the environment in 2020, an estimate expected to double by 2040.

These fragments carry toxic chemicals and can disrupt internal biological processes, leading to inflammation, cell death, organ dysfunction, heart attacks and reproductive issues in humans. Scientists have also found links between microplastics and cancer.

While researchers have long claimed that microplastics can enter the human body through contaminated food and water, a new Australian study suggests it can also enter through hot coffee cups.

Why Are Plastic Coffee Cups Dangerous?

Xiangyu Liu, study co-author and research fellow at School of Environment and Science and Australian Rivers Institute, Griffith University, Nathan, said this was due to heat.

The team conducted a a meta-analysis on existing research and analyzed data from 30 peer-reviewed studies. During this time, they focused on how common plastics such as polyethylene and polypropylene behave under different conditions, primarily temperature.

As the temperature of the liquid inside a container increased they noticed that the release of microplastics generally increases too. In the studies reviewed, reported releases ranged from a few hundred particles to more than 8 million particles per litre, depending on the material and study design.

Interestingly, 'soaking time' or the amount of time the drink sits in the cup was not a consistent driver, suggesting that leaving a hot drink in a plastic cup for a long time is not as important as the initial temperature of the liquid when it first hits the plastic.

After testing nearly 400 different cups, they found that if someone drinks '300 millilitres of coffee in a cup made of polyethylene per day, they could ingest 363,000 pieces of microplastic particles every year', according to Liu

What Can Be Done To Reduce Risks?

The team recommends using a reusable cup made of stainless steel, ceramic, or glass, as these materials do not shed microplastics for hot drinks. If you must use a disposable cup, its is better to drink out of a plastic-lined paper cup as they shed fewer particles than pure plastic cups, though neither is microplastic free.

They also advise not pouring putting boiling liquids directly into plastic-lined containers. Telling the barista to make your morning coffee slightly cooler before it hits the cup can reduce the physical stress on the plastic lining and lower overall exposure.

A dangerous, drug-resistant fungus has infected more than 7,000 people across 27 US states, including Mississippi, in 2025, federal health data shows. The infection, known as Candida auris, is classified as an “emerging infectious disease,” after doctors and public health experts noted a steady rise in cases since 2019, according to specialists at the Cleveland Clinic.

As of December 20, Mississippi had reported 108 cases of the fungal infection, based on figures from the Centers for Disease Control and Prevention. Here is what you need to know about Candida auris cases in Mississippi.

What Is Candida Auris?

Treating it is challenging because the organism can adapt to medications meant to eliminate it, health experts note. C. auris mainly affects people with serious underlying health problems and those using invasive medical devices such as ventilators, feeding tubes, or catheters, according to the CDC.

The fungus spreads through contact with contaminated surfaces and objects and can remain on a person’s skin or other body areas even when no symptoms are present. Experts say healthcare workers and visitors are not considered at risk of becoming infected.

Candida Auris: What Are The Symptoms?

Symptoms of Candida auris are not always noticeable, but when they do appear, they may include the following, according to the Cleveland Clinic:

• Ear infections
• Wound infections
• Urinary tract infections
• Blood infections that spread throughout the body

Candida Auris: How Can It Be Prevented?

• Regular hand hygiene using alcohol-based hand sanitizer
• Isolating patients who test positive for C. auris
• Frequent and thorough cleaning of patient rooms
• Using gloves and gowns while providing care
• Ensuring visitors clean their hands with soap and water or alcohol-based sanitizer

Which US States Have Reported Cases Of Candida Auris?

According to CDC data as of December 20, cases have been reported in the following states:

• Pennsylvania
• Illinois
• Indiana
• Michigan
• Ohio
• Wisconsin
• Iowa
• Kansas
• Delaware
• Georgia
• Maryland
• North Carolina
• Virginia
• West Virginia
• Kentucky
• Mississippi
• Tennessee
• Louisiana
• Texas
• Arizona
• Colorado
• Montana
• Nevada
• Utah
• Wyoming
• California
• Oregon

Drug Resistance For Candida Auris Grows

Candida auris, often referred to as a “superbug fungus,” is continuing to spread worldwide and is becoming increasingly resistant to both antifungal drugs and the human immune response, researchers at the Hackensack Meridian Center for Discovery and Innovation said in a review published in early December.

The findings support earlier CDC warnings that labeled C. auris an “urgent antimicrobial threat,” making it the first fungal pathogen to receive that classification, as case numbers have climbed sharply in the United States, especially in hospitals and long-term care facilities.

The review, published in the journal Microbiology and Molecular Biology Reviews, explains why the fungus is so difficult to control and highlights how outdated testing methods and limited treatment options have failed to keep pace. The research was led by Dr. Neeraj Chauhan of Hackensack Meridian CDI in New Jersey, Dr. Anuradha Chowdhary from the University of Delhi’s Medical Mycology Unit, and Dr. Michail Lionakis, head of the clinical mycology program at the National Institutes of Health.

In their statement, reported by Fox News, the researchers emphasized the urgent need to develop new antifungal drugs with broad effectiveness, improve diagnostic tools, and explore immune-based and vaccine-related treatments to better protect high-risk patients.