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.

England is recording higher-than-normal scabies infections this winter. Health authorities have cautioned that the condition, caused by microscopic mites known as Sarcoptes scabiei that tunnel into the skin, spreads quickly through close physical contact and often leads to severe itching and irritation. Data from the Royal College of General Practitioners’ Research and Surveillance Centre shows scabies is circulating more widely than usual in England, with cases increasing through the autumn and winter months.

Scabies UK: What Is Scabies?

Scabies is caused by the Sarcoptes scabiei mite. These tiny parasites burrow beneath the skin where they survive, feed and lay eggs. The presence of the mites triggers an allergic reaction in the skin, resulting in an itchy rash. Scabies passes easily from one person to another, particularly among people living in close quarters.

If one member of a household is infected, doctors usually advise checking and treating other family members and close contacts at the same time, according to the Cleveland Clinic.

Scabies UK: What Are The Early Symptoms Of Scabies?

Early signs of scabies include intense itching, which is often worse at night, along with a pimple-like rash, small blisters, and thin, irregular lines on the skin known as burrows. These symptoms commonly appear between the fingers, on the wrists, elbows, armpits, waist and genitals. According to the National Health Service, these reactions occur due to the body’s response to the mites and their eggs beneath the skin.

Symptoms do not usually appear straight away and may take three to six weeks after the initial infection to develop. However, people who have had scabies before may notice symptoms within a few days. Typical signs include severe night-time itching and small bumps, blisters or burrow-like tracks on areas such as the hands, wrists, elbows, nipples, genitals and waist.

In more severe cases, the skin may become thickened, rough and scaly. Among children and older adults, scabies can also affect the scalp, face or the soles of the feet.

Scabies UK: Are There Different Types Of Scabies?

Yes, scabies exists in several forms beyond the classic type. These include:

• Crusted (Norwegian): This form is more likely to affect people with weakened immune systems. It causes thick crusts over large areas of skin and can involve millions of mites, compared with the 10 to 15 mites typically found in classic scabies.
• Nodular: More commonly seen in children, this type affects areas such as the genitals, groin or armpits. Firm, raised lumps may persist even after the mites have been eliminated.

Scabies UK: How Is Scabies Treated?

Scabies is usually treated successfully with prescribed medicated creams and lotions called scabicides, along with careful hygiene measures. To avoid reinfection, clothes, bedding and towels should be washed at high temperatures and tumble-dried or ironed. Items that cannot be washed should be sealed in a bag for at least three days, as the mites cannot survive without contact with human skin.

Professor Michael Marks, a professor of medicine at the London School of Hygiene and Tropical Medicine and former chair of the International Alliance for the Control of Scabies, said the rise in cases may be linked to delays in accessing medical care and gaps in identifying and treating close contacts, which can allow the infection to continue spreading.

Ozempic, Mounjaro, Wegovy, and many more such popular weight loss drugs are now making headlines. They are also dominating social media, dinner table conversation and many more. But, is Ozempic truly a medical breakthrough, a miracle drug? Dr Shubham Vatsya, a gastroenterologist, and hepatologist at Fortis Vasant Kunj explains how did this drug change the weight loss struggle that many people face.

Why Is GLP-1 Drug A Medical Breakthrough?

Dr Vatsya explains that it took 20 years of research for scientists to come up with these medicines. This drug underwent proper lengthy trials, and have been approved by the US Food and Drug Administration (FDA), "which is not obtained by giving any bribe".

Also Read: Fact Check: Is Weight Lifting Safe for Teens? An Expert Explains the Risks and Safer Alternatives

He also noted that when a person is not able to lose weight, Ozempic and drugs alike give a "head start" to them, along with a hope.

Talking about side effects, he says that every drug has its side effects, this is where a doctor's role comes in.

"Now, the person who is not able to lose weight, if you tell him 'you hit 100 kg bench press', he will break his shoulder. He needs a kickstart somewhere. This is what weight loss drugs allow," he says.

He also points out that the scientists who made GLP-1 agonists got a Nobel Prize, which "cannot be a scam". This is what makes weight loss drugs truly different.

What Are GLP-1 Drugs?

GLP-1 Drugs stand for Glucagon-like peptide 1, a naturally occurring hormones that helps regulate blood sugar and appetite after eating. It was first identified almost 50 years ago and scientists have since uncovered its role in type 2 diabetes.

Almost two decades of research went behind it that led to the development of GLP-1 agonists. It was in 2005, when the first GLP-1 medication, exenatide was approved.

Read: Could You Become Addicted To Your Weight Loss Drugs?

These medications have three main functions:

• Stimulating the pancreas to release insulin
• Slow the transit of food in the stomach to help people feel fuller for longer after a meal
• Act on areas of the brain that regulates hunger and fullness, leading to smaller portion sizes and reducing cravings

Popular drugs like Ozempic and Wgovy, which have semaglutide, which is a GLP-1 receptor agonist, or tirzepatide found in Zepbound and Mounjaro are FDA-approved for type 2 diabetes and weight loss.

These drugs work by binding GLP-1 receptors in the body, which in return increase insulin production in response to food intake and suppress glucagon, a hormones that raises blood sugar.

Also Read: How Weight Loss Drugs Change Ones Relationship With Food?

Are The Popular Weight Loss Drugs Addictive?

There is currently no data suggesting that GLP-1 medications cause physiological addiction. Interestingly, some research suggests they may even reduce cravings related to alcohol or opioid use. That directly contradicts the idea that these drugs hijack the brain’s reward system in a traditional addictive way.

Still, wanting or feeling unable to stop a medication because of fear of weight regain or loss of control is very real. That experience should not be dismissed, even if it is not addiction in the clinical sense.

These medications are meant to support long-term habit change, not replace it. Nutrition, movement, sleep, and a healthier relationship with food are meant to develop alongside the medication. When people reach their goal weight, doctors may suggest tapering the dose slowly or moving to a lower maintenance schedule rather than stopping abruptly.

Stopping suddenly can make hunger feel overwhelming. A gradual transition allows the body and mind time to adjust. Some people do successfully maintain weight loss without the medication, but it usually requires strong lifestyle foundations first.

As cough and flu season sweeps across the UK, health expert Dr Xand shared crucial guidance during today’s episode of BBC Morning Live (Jan 19) for anyone struggling with a stubborn cough. The discussion focused on coughs and colds, highlighting new research showing that human rhinovirus, a common cause of cold, can also trigger pneumonia in adults.

Flu Season In UK: Warning Signs To Watch For

Speaking with presenters Helen Skelton and Gethin Jones, as per Mirror, Dr Xand, a specialist in public and global health, explained which symptoms indicate a cough should not be ignored. He noted that a persistent cough is one of the key signs of pneumonia.

Gethin asked, "A cough happens with many illnesses, so when should someone really worry?" Dr Xand replied, "This is a big question, and plenty of people at home might be thinking, 'Is this serious?' because coughs can linger for a long time."

He continued: "Viruses like respiratory syncytial virus (RSV) can cause what’s known as the 'hundred-day cough,' and people can be coughing for weeks wondering what’s going on."

Dr Xand advised viewers to follow the NHS guidelines for coughs, saying, "The NHS recommends consulting your doctor if a cough persists for over three weeks. Many coughs last three to four weeks, and you’ll usually notice if they’re improving. Right now, the most common cause is a virus."

Dr Xand’s Cough Syrup Alert

Addressing people from home about cough syrups, Dr Xand highlighted the latest NHS guidance. He suggested trying more natural remedies, which can be just as effective. "The NHS does not actually recommend cough syrup," he explained. "It advises hot lemon with honey instead."

The official NHS website confirms that "hot lemon with honey has a similar effect to cough medicines." This simple remedy can soothe the throat, calm irritation, and reduce the cough reflex. Some studies even suggest it works as effectively as certain over-the-counter medicines, particularly for children over one year old. However, it’s important to note that it doesn’t treat the underlying illness.

What Do Cough Syrup Studies Show?

Research shows that most over-the-counter cough medicines offer minimal benefits. Studies, including those from the Cochrane Collaboration, reveal that they perform little better than a placebo for short-term cough relief in both adults and children.

While these syrups may temporarily ease throat irritation or provide a sense of relief, ingredients such as dextromethorphan and guaifenesin often do no better than sugar pills. Much of the perceived benefit comes from the placebo effect or the body’s natural recovery.

Instead, simpler measures like honey, staying hydrated, and using painkillers such as paracetamol or ibuprofen are often more effective. Most coughs caused by colds simply need time to resolve.

Cough Syrup: Red Flags To Watch For

Dr Xand shared the warning signs people should be aware of. "There are several red flags worth noting. High fever, chills, or unexplained shortness of breath are all reasons to see a doctor immediately. You should be able to breathe normally, and if you can’t, that’s a concern."

He added, "Any chest pain with a cough, very thick mucus, or extreme fatigue are also serious signs. More severe warning signals include trouble breathing, bluish lips or fingertips, confusion, mental changes, prolonged high fever, and a rapid heart rate."

"It’s crucial to act quickly," Dr Xand continued. "I’ve seen cases in my own family where someone went from a mild cough to being extremely unwell in just a day. Sudden deterioration can be life-threatening, so early medical help is essential."

Pneumonia Can Be Subtle but Serious

Dr Xand emphasized, "Pneumonia can sometimes develop quietly. It isn’t always dramatic, but it can be fatal. That’s why it’s so important to monitor symptoms and seek medical help promptly if things are getting worse."